Resins dirty secret?

[@btlawrence]

If you would have asked me before this video "how long have you been watching Peter Brown"? I would have said "2 or 3 years"... I had no idea that I have actually been watching for over 7 years!

[@heehoopeanut420]

right?!

[@daalelli]

same!

[@marsklassen]

That was my thought too!

[@TeddyLucia1006]

Same boat as you. How time flies! Kind of uncomfortable to think about, actually...

[@roxaslight7503]

I definitely had the same thought, maybe not subed as long but had checked out the works and channel well before I thought I did.

[@Lucrio40]

The most disappointing revelation in this video isn't that all resins amber over time, it's that Peter keeps so many awesome projects stored away in random boxes instead of displayed somewhere.

[@suzettekath9860]

It is part of aging. No matter what the item or being is. There will be indications that things age. Like resin, it goes amber/yellowish.

[@Devok07]

@@suzettekath9860 You completely missed what they were saying.

[@kmaxmadness7892]

What type of resins don’t Amber over time?

[@WatermelonCatermelon]

You can only display so much awesome before *they* start getting suspicious…:)

[@MarktrustingJesus]

@@kmaxmadness7892 polyaspartic resin. different chemistry

[@gamemeister27]

I imagine the resin changes pigment just as fast when it's thin, but the thinness of it does a lot to make the pigment less obvious. Think of how dark coffee looks in a mug, but a thin layer is translucent.

[@privpi]

Or ice. If you have a large block of ice, it will have a stronger colour then when you shave up some of it. Where it basically always just looks white, with just a slight colouration

[@antiisocial]

Could be yeah. Makes sense.

[@TigerAceSullivan]

just came down to comment this. the thicker the resin the more the yellowing will show, but it all yellows the same for the most part.

[@Johanna77777-z]

I've heard stories about coffee that let's you see the bottom of the cup! Coffee should look black or you are doing it wrong. Only a very thin layer let's you see through it, but it's still brown. I wouldn't describe it as translucent, that makes me think of clear liquids. But English is not my first language

[@quakerparrot9084]

@@Johanna77777-z translucent is correct. I think you're thinking of transparent which would be a clear liquid. Translucent is partially clear i.e. mildly colored or cloudy or whatever else

[@8BitBaker]

I collect resin dolls and this is something the (doll) community discusses a lot, so I was honestly happy to see this video. Items that are heavily exposed to light will obviously yellow faster, but it's hard for many people to stomach that when they purchase an expensive doll (or other resin piece), it will eventually become yellow in time. Dolls are made with heavily pigmented and completely opaque resin and it definitely does yellow over time - typically it takes 4-5 years before it really begins to look unnaturally yellow, however. To fix the issue, usually there are two solutions: 1. (If the resin is peach) Briefly dip-dye the resin using combinations of pink/tan or red/yellow/pink. This will darken the resin slightly, but will put more color back into it so it does not look so yellow. 2. Lightly sand the entire piece. This is extremely time consuming and risky on a detailed sculpt, but it can give 2-3 years of life back to the resin. Usually the outer surface of the resin is darkest, so while the entire piece will yellow, you can restore some life to the resin by re-sanding it. In the case of peach dolls, usually it will take the doll from looking smoker's yellow to looking more like a cream color.

[@mary78880]

Yuuuuuuup! As an interior designer we have to take into account the fact that the color will yellow when selecting the flake colors for an epoxy resinous flooring

[@adamhutchison19]

All of the projects from 2015 and before hold a special significance for me. That’s when I discovered you. It was when my daughter was in the hospital getting her cleft lip repaired at 6 months old. I binged every one of your videos while sitting in the hospital room when she was sleeping. Your videos helped take my mind occupied while she was recovering.

[@SunnyPea]

Following a good amount of people who work with resin in the BJD (ball jointed doll) community, there are resources out there for comparisons of what happens to what pigments after time! But even resin with pigment will yellow over time no matter what you do. It's a sad fact that we accept to do and make things we love :)

[@Animadictsaiyuki]

Was about to say. We call it 'yellowing' though if you have a tan doll, it turns green. (Luckily my tan girl of many years has yet to turn green yet because I got her resin with UV cut on special request.) It is just that red on the colour spectrum is unstable and breaks down across the board, even in paint and film included. I had pastel blush go out on me over the years so I switched to higher grade pastels and airbrush paints to help prevent that.

[@zachaliles]

I'm afraid to ask what a ball jointed doll is.

[@AvenRox]

@@zachaliles a type of doll with ball and socket joints in the arms and legs for posing (includes ankles and wrists)

[@kariechaos5382]

Oh my goddess, does anyone remember (I think it was) Volks? Beauty white. It would eventually turn green. It was many many moons ago, but oh the outrage and confusion. I have four dolls, and they are kept in the dark unless I'm doing photos and even then just a little sunlight now and again has yellowed the white skin ResinSoul boy to a sort of very pale ivory.

[@nui4758]

First another Evan and Katelyn fan, and now a fellow BJD collector :D I'm finding all of my people in this comment section

[@marqbarq5977]

I’m sure “all resin yellows over time” can fit for a lot of life. All ________ yellow over time. Relationships, morals, teeth, and so much more.

[@RoamingAdhocrat]

all coldplay songs yellow over time

[@racheltiffany9892]

Toenails

[@Bluhbear]

at the end of the universe, all will be yellow

[@hansdegroot8549]

@@racheltiffany9892 Paintings

[@Jess_isahotmess]

The fact that I remember every single project because I’ve been watching since the jean bracelet was made warms my heart. I wondered what you did with all the stuff and if Mrs. Brown used the hair barrettes you made.

[@Miscast]

Thank you!! I had absolutely no idea, I gotta work out how to future proof my projects now.

[@EddieBurke]

Urination

[@gracieshepardtothemax1743]

Just subbed to your channel! Gonna go down another rabbit hole! 🍁

[@Me-th3gj]

Could probably UV the yellow out of existing ones, and I was wondering if adding a little amount of coal dust would filter out the yellowing properties.

[@Howtard]

@@Me-th3gj The one that he noted was unusually clear for its age was the charcoal bowl, wasn't it? I had the same thought.

[@mai2015]

Omg hi Trent! I had no idea he'd be here too!!!

[@thegentlemanpirate13]

That was both educational for those of us who may be interested in doing resin work ourselves, and a nice trip down memory lane. Great video as always, Peter!

[@2Tacoface]

I love your channel! I use your videos in my classroom all the time! They are great for brain breaks for kids. Plus there is something about your voice and your craft that are just satisfying. Thank you for all you do. You've relaxed over 1,500 students by this point in my career!

[@peterbrownwastaken]

Wow. That means a lot to me. Thank you.

[@daalelli]

What a wonderful thing to do for the kids!

[@kyleryan22]

I work in paint and wood coatings, and I can't tell you how often we have to explain to people that NO MATTER WHAT, your coating is going to amber over time. I also can't tell you how often people just cant grasp why it can't stay crystal clear forever.

[@AlynneTheFlorifant]

Is it possible to uv treat it? Like what they do with plastic that has yellowed?

[@kyleryan22]

@@AlynneTheFlorifant At least in my experience UV is what you’re trying to avoid

[@ExaltedDuck]

UV treatment can break down the remnants of certain halogenated additives. The role of those additives is to protect the resin and/or pigments from being damaged by light. Without them, colors would fade faster and/or the resins/plastics containing them would go brittle and start cracking/flaking much sooner. However, the yellowing Peter and Kyle are referring to is part of the resin product itself. Sometimes it's excess amine-terminated co-resins, amino or transition metal catalysts (sometimes residual from manufacturing the resin, sometimes added to moderate the product's cure)... when that happens, that's it. It's yellowed. Interestingly, those brownish-staining additives can stall that process for many years. But once gone, entropy will do what it does and other (non-sacrifical) components of the resin system will oxidize, darken, weaken, etc.

[@hulkbanner2739]

@@ExaltedDuck great explanation!

[@LazerLord10]

@@AlynneTheFlorifant This isn't uv, though. Those bubble-wrap coasters were stored in an opaque drawer.

[@Meriko92]

I almost cried at the beginning of this video. All the nostalgia. The years of projects that I remember watching. I was afraid this is how Peter would be ending his KZbin channel...

[@reallifeistoflat]

Archival resin for art conservation surely has to be incredibly slow to yellow if it's not immune. I imagine it's also very expensive

[@reallifeistoflat]

I actually reached out to Julian from Baumgartner and he said the following. "The resins I use are stabilized against uv light. That said it’s likely over a long enough time with enough UV exposure they may yellow. The research however has not shown any change either molecularly or visually over 60 years of use." Something to keep in mind since they would also be surviving uv damage

[@twistedmyth5860]

True, but those are also not casting resins. Meaning they might not change when used as intended but I wouldn't be surprised if they changed dramatically if someone tried to cast with them.

[@reallifeistoflat]

@@twistedmyth5860 it seems likely that casting versions exist as it seems like yellowing is partially due to impurities. I think the important thing to remember is that the resins Peter uses are not intended to be optical and archival but strong. Total boat wants a resin with high sheer strength and optical issues are at best an afterthought

[@robmckennie4203]

I think an important factor with archival resin is that it's reversible, so even if it does yellow, ideally you would be able to take it off and replace it as often as you like without damage to the artwork

[@OutOfNamesToChoose]

@@reallifeistoflat Thanks for taking the time to ask Julian

[@ILEFTCAPS0N]

"Bacon handle vegetable peeler." I really hate how brilliant this is.

[@azinfandellvr]

My boyfriend overheard that & said I'm subbing immediately! 🤣😂

[@HenriettaD]

I love seeing some of the old projects you have done. I remember watching quite a few of the videos that show most of these objects being made. It is like a time capsule 💙

[@sarahn.2296]

I haven't watched the entire video yet, but I know when I used to work primarily in resin we would add a slight, SLIGHT bit of transparent blue/violet pigment. It wasn't enough to notice but it offset the yellowing process a bit. Though it's inevitable.

[@vanathema]

That might be why the charcoal bowl seems so clear now! I remember that when it was freshly-cast that some blue pigment or chemical had seemingly bled out of the charcoal and tinted the casting resin.

[@vintagepc64]

@@vanathema Either that or the charcoal had some sort of adsorbent effect on the components that are yellowing. I seem to recall reading that the yellowing happens because the mixture and ratio of A/B is never perfect, and it is the "uncured" trace amounts left behind that are breaking down and turning yellow.

[@ExaltedDuck]

I worked with an epoxy product years ago where that strategy was used. It was meant to be a water-clear casting compound and used an amine cure system (most common epoxies do - it's easy, reliable, and very forgiving to measuring/mixing problems). Thing is, amines tend to be slightly yellowish, and to darken with age and amine cured epoxies usually carry an excess of amines. So the epoxide side had a very slight addition of a violet pigment. And the stuff did cure beautifully clear. Although my favorite product in those days was a high thixotropy epoxy adhesive that had an acid/base indicator as a pigment in its amine side... it was bright pink in the packaging, went milky white when mixed, and cured clear-ish.

[@JERZEE847]

What a great idea. Thanks for sharing that little tid bit.

[@Nerdygoddess]

Fun fact, back in the Victorian era, it was standard procedure to add "bluing" (a hint of blue dye) to the wash water for whites to counter yellowing with time.

[@krysmun]

Personally, I wonder if we'll get an update on the Black Resin & Aluminum Shavings bowl. Also notoriously known as "THE MURDER BOWL". That was one of my absolute favourite collab Projects.

[@angelwhispers2060]

Considering the murder Bowl belongs to someone else now you would have to ask on that channel

[@krysmun]

@@angelwhispers2060 Yeah, I know, I just sorta said it here since this is where the initial blank for the murder bowl was first poured, and I wondered if peter was still in touch with Carl Jacobson, the guy who turned the final bowl.

[@angelwhispers2060]

@@krysmun probably... I'm just saying you'll have better luck messaging to Carl directly. Good luck

[@krysmun]

@@angelwhispers2060 yea, you're probably right. but I doubt I'd get a response either way.

[@peterbrownwastaken]

OK. So Carl did a giveaway, and the Murderbowl now resides in Germany. At Makers Central 2018 I met the owner but they didn't want me to take a picture or talk about them. So, I know it's well-loved but that's my only update.

[@FishersShop]

What a fun walk down memory lane! I've seen everyone one of those videos back to the 2016 era.

[@abbyferrari]

Me too! When I discovered him I started to go back! I don't do that with all the channels I subscribed to

[@shazmo1989]

I was looking for this comment because this is exactly what came to my mind 😊

[@aldrea6506]

Wow...it doesn't feel like you've been doing resin for that long. It was great to see all the projects you've made over the years again and see how they have held up.

[@aniano39]

I’m absolutely loving how his attempt at creating a more educational video is slowly turning into a blast from the past. I’d forgotten about some of my favorite resin projects from 2016-2017

[@AnomalousZoologist]

Delighted to see a review of old projects! I knew it would all go amber eventually, but frankly I think that that's some of the charm with this stuff. Especially with the book tablet stand or the penny serving tray, makes them look antique.

[@JackRupert133]

An old trick I learned when working with epoxy is that adding a violet dye to it will prevent or at least hide the yellowing. Not enough to be super visibly purple, it only takes a little bit. I use 5 minute epoxy to paint mask eyes and if it is untinted it can yellow in as little as six months, but I have masks years old with very clear epoxy due to the violet trick.

[@ludettep]

I was wondering if a little purple would help. Adding a tiny bit of purple to butter cream icing turns it a pretty white and when I had blonde hair I had to use a purple toner to get a platinum blonde look.

[@gingganggoolie]

Ah, like they used to put blue dye in washing powder to make the white brighter. That's a great idea

[@namehere4095]

Do you recall which dye you used?

[@gamemeister27]

So if you're planning to make an aesthetic piece that's supposed to be looked at decades for now, plan for the yellowing? Make sure it'll still look good, if not better, with a yellow tint.

[@ldla_happymanoogmatt5818]

Or cast a resin piece with a pigment in it

[@theJonnymac]

a slight amount of purple will help it look clear longer. like an amount that isn’t even noticable when freshly cast

[@kane2742]

I think the tablet stand made from a book is a good example of this. The yellowing just makes it look like an older book.

[@gamemeister27]

@@kane2742 hell yeah

[@M0CC3R]

Maybe he should remake the jurassic park cane with epoxy resin, this time without the pigment in it so that it will naturally yellow over time.

[@tarajadez225]

Holy shit, I literally grew up watching this guy it makes me so happy knowing he’s still making videos

[@cornonjacob]

Fun to look back at all the old projects! Didn't realize i have been watching for almost 4 years by now

[@taylorandrews509]

Wow! I get recommended a lot of resin art products that small businesses sell and this is definitely something I would like to consider when purchasing anything made of resin. Especially if it is something large scale and expensive. I wish more resin art creators disclosed this when they are selling their products. I understand it might deter some people from purchasing products but it would help the consumer understand what they are purchasing and how it would last.

[@lollipopsandpolaroids5148]

I’ve never been this early before!! These videos have helped me overcome so much anxiety! Thank you Peter

[@zt4680]

I’ve watched every single one of your videos, and it’s strange to watch you look back on your projects and simultaneously look back to where I was when I watched you make them. Way meta my dude! Making projects and making memories.

[@louiebugooey]

I can't believe how long I've been watching your channel for, having never once used resin or turned a single item. Hell, I don't this there's a single overlap in the things we make, but somehow I've been captivated by every video you've made since 2014, apparently. I genuinely love watching you create

[@The_Great_Whodini]

This walk down memory lane was awesome. Hard to believe I was watching these videos seven years ago now.

[@fancyflautist]

Been with the channel for 6~ years and watched pretty much everything you've ever done, it's so nice seeing an update on all the projects 🥰🥰🥰

[@thevirtualtraveler]

Peter, you are one of the few KZbinrs where it doesn't really matter what the subject of any given video is, I'm gonna watch it!

[@Alleroc]

Man, I have been watching your videos for a long time. This was a fun look at the catalog from over the years, and here's to many more!

[@thisolesignguy2733]

It was cool to watch you take out all those projects! I was like "yep, saw that one and that one and that...wait that's on I missed!" then going back and watching it. Very cool!

[@invictus50ssl]

Yeah, no one really mentioned that it yellows over time. Love that you did this and also love seeing the projects all together to be honest lol It's crazy how many projects have been made and looking back at them now VS how they were when you first made them is so interesting to see

[@emersonpagel2056]

I just watched a 45 minute video of someone trying to make transparent wood using many of the skills and techniques you utilize on your channel. He didn’t have much prior experience working with resin and you could tell it hindered the process. He ended up getting close to result he wanted but I’d love to see you try to make transparent wood! I love your videos and I hope you’ll see this! Thanks for doing what you do

[@Heaven_v]

I’m so glad you’re talking about this! I’ve found a few old resin pieces at goodwill and they’re always yellow so I was always curious.

[@YS420X]

Same. Always thought the previous owners were just smokers haha

[@volemek]

So looking back, i can remember watching every one of those videos when they came out. Thank you for so many years of awesome content.

[@patrickguerette4533]

You’ve just made some enemies with the clear river table makers.

[@CodeXCDM]

Unless the table is made with light colored slabs, I think the yellowing will add character. There are also UV resistant costs that can be applied.

[@padel24x7]

@@CodeXCDM even uv resistant do yellow over time

[@Bluhbear]

@@CodeXCDM I mean... what comes to mind when you see yellowish fluid? I guess that still counts as character. 😆

[@GreenFox1505]

@@CodeXCDM most of those projects have been sitting in a box far away from any UV.

[@evoldous]

Oh man... this video makes me feel old. I remember watching all of these projects as they came out.

[@matthewdaniels1147]

Awesome to see all the old projects!

[@TopCheese79]

What this video has really shown me is how long I’ve actually been watching this channel. I’ve been watching since like 2015 and I didn’t realize it’s been so long.

[@kesami123]

I collect ABJDs and this is a well-known "secret". Red pigments will definitely break down faster than other pigments, but even colored resin pieces will yellow over time, whether exposed to UV or not.

[@FigNewter]

I was just about to comment about this! As soon as I saw the title I thought "oh it's a video about resin yellowing" lol It's so widely talked about in the BJD world I forget that most people probably don't know about it.

[@rolfredford]

I wonder if can make yellow dye that breaks down as resin itself yellows, so it stays same shade, or in least approxate lol

[@anonymouswhite7957]

@@rolfredford lol nice idea! im sure you can do it, but there are probably going to be lots of trial and error

[@do_gotcha]

Thanks for the walk down memory lane of your videos! Man do I remember each one like yesterday...

[@Ina552]

Hmm, what if you made a resin half sphere, then next year, when it gets a bit yellow, encase it in another, bigger resin half sphere and keep adding a layer each year. Eventually, you'll (hopefully) get this thing with a darker shade of amber in each layer. I guess you could do the same thing with pigments though. Would look pretty cool I think.

[@jeanstafford5473]

I remember all of these. cant believe I have been watching you that long. Thank you!

[@cupcakebyamy]

Heh. “I don’t know if I can make it any clearer.” Well played, sir

[@staceyblack7930]

It's crazy seeing all your projects and knowing I've been watching you since 2017!!!

[@divalea]

I felt a disturbance in the Force, as if Evan & Katelyn cried out “Oh, sh*t!”

[@midnightequinox2026]

Hahaha! I didnt even think of that, do you think they know? I mean they probably do, right?

[@nui4758]

Glad to see a fellow E&K fan here 💕

[@BEdmonson85]

@@midnightequinox2026 Surely they would know, right? I mean, I'm not a regular resin user, but I do cast some projects occasionally, and even I know pretty much all clear resins will yellow a bit over time. Most of my projects involve resin over wood, so yellowing isn't an issue. Heck, oil-based polyurethane "clear" coats go on slightly yellow from the start and look great.

[@divalea]

@@nui4758 They’re so forking wholesome and funny.

[@Heartwing37]

E & K forever! 😂♥️

[@bigfil1981]

Awesome, can't believe I've been watching you spin and sodden things for so many years!

[@setavulos]

this retrospective made me realize just how long i've been following you! you've made some awesome stuff over the years, for sure. and it's interesting to see how it all ages! :)

[@Pablo_SmoothCat]

I never realized how long I’ve been subscribed to the channel until we got top. Man it doesn’t even feel like it’s been that long, keep up the great work. You’ve come such a long way since the beginning.

[@tommycarlier9617]

So cool seeing all these projects again! I use resin to ‘glue’ animal skeletons back together. Luckily bones have a slight yellow tint to them already

[@RaycoRedFox]

Thank you so much for putting this out there, I waited so long for someone to show how their resin project aged.

[@scott8919]

12:45 I absolutely LOVE that bracelet with the wires in it. As an electronics geek I would love to wear something like that. Even if it did yellow.

[@SharpAssKnittingNeedles]

The yellowing would be so apropos too!

[@B.McAllister]

I love the fact that I recognize all of these items because I watched every single video of these projects.

[@Wolfesbrain]

This was a cool retrospective! I'd love to see more "craftsman's secrets" video, whether their dirty secrets or tips and shortcuts! Or dirty shortcuts?

[@rDunfee]

Man what a wild ride. I didn't realize I've been following you since at least 2014 but when I saw all the old projects I couldn't help think of how your channel had been an inspiration for THAT long in my life

[@RebeccaKatsuya]

So, first off, I really appreciate the info, thanks! My mum has said for years we should just pour resin over a few antique side tables that are missing the glass inserts, & I’ve always thought it wouldn’t be a great idea due to our lack of experience & the possibility of ruining them. This makes me really glad we didn’t, & I think it would be a better idea to get new glass panels cut. Secondly, nice to take a trip down memory lane, & fun to see all the old projects again! Thirdly, that “missing penny” was never missing?? Do you know how much that bothered me, & it was there all along?! 😂

[@turdl38]

so many of your projects are so incredible. even yellowed.

[@BattleHat]

Would you consider trying to use Retro Brighting on these? It's a pretty common technique to use on old yellowed plastic, I've seen it mostly when renovating old game systems. I'd love to see what would happen!

[@BEdmonson85]

Retro-Brighting is a surface bleaching technique; it's only "skin-deep" so to speak. It wouldn't penetrate through the whole piece. The yellowing in resin is not just on the surface, it goes all the way through.

[@toddfraser3353]

@@BEdmonson85 I expect you are right. But it would make an interesting experiment.

[@Quickened1]

@@BEdmonson85 I'm not so sure I agree with your statement. An object that seems to contradict your statement is an automotive headlight lens. I have seen them turn almost brown, but end up almost clear when a polish is used on them. I think some experiments would be warranted...

[@dsma2023]

I came here to comment the same thing. How do we know that this problem with the yellowing is not just the surface?

[@wallywest4274]

Also came to say the same. Maybe a hydrogen peroxide bath with UV lamp for a few days? Love to see what would happen with the rose.

[@indiashorty]

Can’t believe I’ve been here since the beginning. Loved the trip down memory lane!

[@nonchip]

i wonder *how* it yellows. i've seen explanations ranging from "UV is so energetic it breaks down the molecules" (you stored them in a dark place) to "it's just slowly oxidizing, and UV can catalyze the rate of that" (might be interesting to see if e.g. storing them in an inert gas would prevent yellowing?) to "some unspecified internal reaction between the polymer and components of the hardener". if we figure out how it happens, it might be possible to prevent/delay it with e.g. special types of hardener, coatings, or maybe adding reduction agents to "eat up" the oxygen before it can mess with the resin. i can imagine a lot of those things just aren't done by the resin companies due to being more expensive in bulk, or considered california in the state of carcinogens, or would make it more complicated than "mix 1:1 of those two things" whatever. but there is special resin for art restoration that seems to not do it (or at least take a few hundred years to be noticeable), so i wonder how the chemistry works differently in different kinds of resin.

[@titandragon365]

The Charcoal bowl is my favorite project. I love watching your video when you made it. I wish I had one too. I love seeing it under a black light.

[@quadcabdakota]

I have a clear cast brand kit that I've had for 2 years. The hardener is still clear as water, but the resin itself is to yellow to use. It has never been mixed or opened. Still has the factory seal.

[@wupme]

it most likely also exceeded its shelf life, which is for most resins just like 12 months tops...

[@robfromaz1977]

I have been watching you from the earliest days. I remember almost every one of those projects. I can't believe it has been that many years.

[@arcadius90]

On the charcoal bowl, that hasn't changed, I have a theory... Back when I used to bleach my hair and tried to maintain a paper-white colour, my number one enemy was the weird yellow colour my bleached hair wanted to be. To deal with this, I had to use a 'violet shampoo' which had a tiny bit of purple dye in it - the faint purple dye cancels out the faint yellow colour. If I recall correctly, the charcoal bowl resin ended up with a small amount of deep-blue / violet colour in it, that leached from the coal (wasn't it UV reactive?) - I think maybe the faint purple in the resin is cancelling out the yellowing... maybe this trick could be used on purpose for projects that are likely to yellow over time??

[@alexwolford2084]

It's crazy it's been that long. Been here since before the blue Jean bracelet apparently in 2014. I remember sending my best friend who has since passed your videos. Thank you.

[@liuqmno3421]

I wonder if you can "un-yellow" it in Hydrogen Peroxide like they do in Console Restoration videos! I love how the Bubblewrap Coaster turned out, the yellowing is perfect for that one!

[@LostWhits]

Thanks for the stroll down memory lane. Looking forward to some more dyetrying videos.

[@AkosJaccik]

Now, I am very "afraid" to write this down, because it's only just wild guessing, but perhaps yellowing occurs due to structural changes in the material, namely crystallization (I thought about the "breakage" of the polymer molecules as well due to UV, oxygen, water etc., but I'd wager it's the less plausible explanation). If I recall correctly (...and I most likely don't), polymers often gain transparency due to their amorphous nature, and once crystallization occurs to some degree (the long molecules usually "fold themselves up" in a layered way), they become opaque. If this or some similar mechanism is the case, then this aging process is pretty much inevitable, and the more clear "volume" there is to see through, the more apparent it will be. Thus I think dyed resin also yellows, but because it is not _that_ transparent anymore plus the added pigments make it really hard to perceive color shift to begin with, it's far less apparent. But, again, I'm just guessing.

[@shiningbloom9]

This video made me realize how long I've been watching you! I'd watch you to relax in college and now I watch after work still two years postgraduate!

[@marialiyubman]

Thanks for the “greatest hits” episode. Also, I still laughed seeing the magnifying glass 😂 still my favorite video of yours (with fire and rain).

[@shaunbarrickman6339]

Like a trip down memory lane. I remember all of them!

[@jlarts]

As someone who likes to watch art conservation videos, the yellowing effect of resin is quite dramatic once a painting is cleaned and its resin-based protective layer removed. That said, I'm sure there are UV-resistant polyester resins you can use as a top coat even if it may not be available as a casting resin. Besides, isn't amber resin that has fossilised over time?

[@fryambuter3966]

Always know it's going to be a good video when it starts with you laying things out on the bench. It was so nice to see an update on the older pieces all at once- like a little museum. Thanks for the informative and clever content, as always.

[@X22GJP]

Surely a thinner coat yellows just as fast, if not faster, than a thicker pour. Only difference is on a thin coat you are hardly going to notice the yellowing as much.

[@ExaltedDuck]

yes and no. Initial heating during cure can hasten yellowing, so large bulk pours can yellow quite a bit faster up front. Thinner pours can manage heat much better and yellow a little less. In the end, as long as the thicker/bulkier piece doesn't exotherm past any threshold temperatures that might be burning its ingredients, it should be expected both pieces, given plenty of time to oxidize, should reach the same degree of yellowing (which will look more intense through a thicker optical path)

[@genevieverobinson2275]

I can’t believe its been 8 years since you started resin work!! Watching all the old pieces come out was like reliving my childhood where I would sit and watch your videos with my siblings 🥲

[@vixyman]

Does it affect the whole volume evenly, or is it a surface effect that can be polished out?

[@abbyferrari]

whole thing I believe

[@SarfaraazAlladin]

I can't believe how long I've been subscribed to your channel. I don't think I was around quite from the beginning, but I definitely remember when you started dippit. Love your vids and it always brightens my day when I see a new one is out

[@allenlewis5689]

So, here's a fun and stupid idea. If pigment seems to keep the ambering from happening (optimistically assuming that the pigment isn't simply hiding the amber effect) then maybe we should develop a clear pigment. I know, that sounds stupid. If it were clear it wouldn't be a pigment. Well, I mean to say that on a chemical level, the resin doesn't know or care what color the pigment is. All it cares about is how it is changed on a physical level. If you were to make something physically similar to a resin pigment but which has little to no color, maybe it would keep the resin clear. I wonder if that is what happened with the charcoal bowl, because it has a UV effect to it. At the very least, a series of experiments should be done to see if you can determine why the charcoal bowl is still clear. Maybe the substance in question could be isolated and added to resins in the future. I just went back and watched the charcoal bowl video, and past Peter thought it was due to the stabilizing resin mixing with the casting resin. Based on that, I suggest doing an experiment where you mix different amounts of stabilizing resin directly into different types of casting resin, label them all, and check on them annually to see if they yellow.

[@anonymouswhite7957]

Pigments also degrade over time i think, a thing to consider Not sure if it can be called as pigments, but i do know that there are already additives that can drastically slow down the yellowing and UV damage like HALS (hindered amine light stabilizer) & UV light stabilizer Also yea the experiment to test precise amount of casting and stabilizing resin to resist yellowing sounds good!

[@MeepChangeling]

Florescent dye powder might work! That stuff can be clear in the visible spectrum. A consequence of using that in resin would mean the object would glow green, yellow, or blue, under a blacklight. Also it wouldn't be clear to birds and most insects.

[@allenlewis5689]

@@MeepChangeling Woah! I didn't know that.

[@hotchocococo]

Thank you so much for doing this video. It was very educational and disheartening at the same time since I didn’t know that ALL resin will amber over time and I had planned to make all these “clear” pieces with dried flowers etc to sell. It would break my heart if people came back and told me the pieces they purchased had turned all yellow and yuck 😢 Now I need to plan on how I’ll colour the pieces I make in the future. Thank you again! Really appreciate you showing your beautiful work from years ago ♥️

[@TrevorGeene]

So this is going to be completely out of left field, but I have an idea. The using of water-based dyes in polymer resin creates a super hot reaction. What would happen if you put popcorn kernels in there? Will they pop?

[@guitarchitectural]

Go watch the ben's worx channel... He'll be doing this in the next video. Given how hot oil needs to be to pop popcorn I'd be surprised if it works

[@Faesharlyn]

Yep.. check out Ben's channel for the answer lol

[@ashleycottontail1968]

It was so nice to see you go through all your work. I remember all these projects. Thank you

[@tsumgye5370]

it's strange that smaller volumes of resin yellow slower, I would've figured it's the other way around.

[@koalafrenzy8271]

It's yellowing at the same speed, it's just because the resin starts out clear, you see all of the yellow in a deeper mold showing through. Vs just the little bit of yellow present in the thin coat. If you stacked a bunch of thin coats to the same volume as a big piece, you'll see just as much yellow.

[@jonathankelley4837]

Thank you for actually making this. A little over a year ago I tried making some stuff with resin (inspired by your work) and after a few months of testing I noticed all my first attempts had yellowed despite the company (and many other resin companies) claiming their resins would not yellow with age. And I've had several friends want to get into resin casting and they will not listen to me when I tell them the stuff with yellow. Does it still look cool, absolutely, but its going to yellow over time.

[@LokiPokie]

Peter you forgot to tell us about how the gummy bear axe has aged…😤

[@slaphead2965]

Great to see those old projects again. Great video 👍🙂

[@comradechris7975]

Holy moley I haven't been this early before! But rejoice Peter Brown is back and my Dip it request still remains mate, dip some of whats left of your coloured hair before it all turns grey Edit: there was 69 likes and 420 views when I made this comment. NICE!

[@CherityTherarè]

😎

[@mauromerconchini]

Man, its crazy to watch you pull out your old projects and recognize so many of them from past videos. I guess I never stopped to realize that I've been watching this channel for *years* now lol

[@rstremix]

I've seen on other channels where, to get rid of yellowing on plastic, they submerge the plastic in hydrogen peroxide, then blast the plastic with uv light overnight, and it pretty much eliminates all of the yellowing. Is it possible to do that with your resin projects?

[@SoupKitchen91]

That would only affect the surface of the object, so I wouldn't think so. The resin is discoloring all the way through.

[@Gamerangel2013]

I've been watching ur channel since 2014 and I've seen every video. Was great seeing all the old projects

[@seigeengine]

Does not everyone know that resins yellow? Also, thinner sections of resin don't yellow more slowly, it's just that the more resin there is the more "yellowness" you're looking through, much in the way water has a color, but you're not going to notice it unless you're looking through a lot of it.

[@TheOfficialChessGoat]

So if I glaze a layer of resin about 1/16 to 1/8 of an inch on to something, maybe it will never be a noticeable yellow?

[@seigeengine]

@@TheOfficialChessGoat If the material is strongly colored or dark, maybe not, depending. There are resins that yellow yes, and there are things you can do to counter-act this, like avoiding UV light exposure to slow the process, or adding a tiny amount of a blue dye to counteract the yellowing.

[@TheOfficialChessGoat]

@@seigeengine what if there is white as well? The guy in this video’s pen had white and it still looked pretty crystal clear.

[@seigeengine]

@@TheOfficialChessGoat That's mostly due to the thin layer, but yes. Naturally putting pigments in the resin will also resist yellowing because they effectively also make it a thinner layer you're looking through.

[@TheOfficialChessGoat]

@@seigeengine ah that makes a lot of sense. So what about a clear layer 1/16 inches applied to a paining with colors underneath. I assume that could also hide the yellow tint? Also thanks for the info, been trying to research this for a while. I’m planning on making 4000 chess sets. Painted squares one a board with a thin layer of resin. A but online shop. And I was worried about yellowing; because some sets will be in inventory for some years

[@glassramen]

The blue resin bowl really took me back. I still want one, it looks so awesome.

[@ashleyJean6]

That was really fun, seeing your work from the years. Also informative.

[@dixie162003]

This is the best walk down memory lane!

[@liriosogno6762]

I loved visiting all these old projects! I remember all of them 😂❤️

[@gregcurtis7549]

I've not made many resin things yet, as I knew this was the case. But trying to convince others that are so absolutely sure some resins don't yellow is hard. You've shown that some yellow slower, but do, in fact, still turn yellow. Thank you.