Casting Polyurethane: Resin Fundamentals

  Рет қаралды 44,774

Eric Strebel

Eric Strebel

Күн бұрын

Пікірлер: 137
@jakekooser
@jakekooser 4 жыл бұрын
I love the Mr. Rogers intro!
@EricStrebel
@EricStrebel 4 жыл бұрын
Thanks
@johnkelley9877
@johnkelley9877 4 жыл бұрын
These casting tutorials are great! I do not have a vacuum or a pressure pot but I should get one. All of my castings are simply poured and while it works it still leaves a lot to be desired. Thanks for sharing this series.
@mlune666
@mlune666 4 жыл бұрын
I love the Motorhead shirt and Mr Rogers combo
@RockerGaming
@RockerGaming 4 жыл бұрын
Keep the molding and casting coming! Great stuff!
@EricStrebel
@EricStrebel 4 жыл бұрын
Thanks! Will do!
@markkoons7488
@markkoons7488 4 жыл бұрын
Thanks. Don't have a purpose but it's nice to know where the information is once an application arises.
@donnakutia9623
@donnakutia9623 2 жыл бұрын
This video answered all my questions.. thank you.
@mikemierspadios7036
@mikemierspadios7036 2 жыл бұрын
Thank you 💚💚. Ur videos are much appreciated.
@CorvusSapien
@CorvusSapien 2 жыл бұрын
Awesome video! Thank you very much.
@adrianharrison5208
@adrianharrison5208 Жыл бұрын
You make it look so easy, I am hoping to get into this casting this year
@cheungnatasha3076
@cheungnatasha3076 4 жыл бұрын
So glad to see you were happy!😃
@gokhanyuksel2901
@gokhanyuksel2901 26 күн бұрын
Sizi tebrik ederim bilginizle aydınlatıyosunuz saygılar sevgiler
@digitalAuge
@digitalAuge 3 жыл бұрын
Thanks thats help me a lot with the coloring methods 👍
@mkjb8331
@mkjb8331 2 жыл бұрын
Wonderful Teacher!
@OKeefeist
@OKeefeist 2 жыл бұрын
amazing, just what i needed.
@garagemonkeysan
@garagemonkeysan 4 жыл бұрын
Great video on resin tinting and coloring. I never understood why Mr. Rodgers changed shoes, slippas would have made more sense. : ) Mahalo for sharing!
@EricStrebel
@EricStrebel 4 жыл бұрын
Good question!
@bigdaddy7670
@bigdaddy7670 3 жыл бұрын
Excellent video's please keep them coming. Please explain more about your "Yoda" topper. I just bought the BVV carbon filter and t works great.
@vibrion121
@vibrion121 4 жыл бұрын
Simply addictive to view! Good memories come back! For what kind of resins do you use pressure+heat?
@EricStrebel
@EricStrebel 4 жыл бұрын
He can be used anytime for any resin to speed up curing pressure ensures bubble free, mainly for clear. My pressure is also good when it's humid outside to prevent bubbles from moisture
@carlfogarthy6508
@carlfogarthy6508 Жыл бұрын
Grandioso!
@sentientbean1
@sentientbean1 3 жыл бұрын
Onya Eric. Wish you were my neighbour. I'd be hanging out in your shed as much as reasonable 😄😝🤓😎👍
@petesandov3722
@petesandov3722 Жыл бұрын
Hello Eric, I'm an industrial designer, just graduated & I have my first client. My client is looking for me to produce a HiFi prototype for a light sensitive technology. My question are: 1. what would be the ideal polyurethane or material I should use to create a very clear, non distorting or refractive molded piece? 2. Also are these hard pieces sand-able? 3. Finally, is it possible to have one of these casted parts be ultra clear on 1 side and slowly gradient out to a frosted look? Can this pieces be sand blasted to achieve frosted look? Thank you, just found your channel - great info!
@EricStrebel
@EricStrebel Жыл бұрын
Watch this video, it should answer some of your questions. kzbin.info/www/bejne/gaGViqKmnLN_kMU If you are going to resin cast your parts, then contact the resin MFG of your choice for the correct resins. I suggest BJB ent. or Rampf. Yes, PU is very sandable. Good luck!
@seanfan84
@seanfan84 2 жыл бұрын
thanks for sharing
@EricStrebel
@EricStrebel 2 жыл бұрын
Your welcome
@keal.vietnam
@keal.vietnam Жыл бұрын
your video alway perfect and awesome , i love it !
@UnvarnishedTarnished
@UnvarnishedTarnished 4 жыл бұрын
Great video per usual Eric! I find that alcohol inks work in place of resin dye for translucent epoxy or polyurethane resin.
@barrybilt
@barrybilt 2 жыл бұрын
love the videos. although this one doesn't have the links to the equipment. especially the right heated pressure pot, and the bottom large one. i was going to purchase
@danmottram7098
@danmottram7098 9 ай бұрын
Can the pressure pot and vacuum tank be the same vessel, sometimes attached to an air compressor and sometimes a vacuum pump? Is the primary difference the clear top on the vacuum tank to allow you to see the bubbles?
@EricStrebel
@EricStrebel 9 ай бұрын
I guess, you would need a special device to keep the lid on for the pressure
@koopdi
@koopdi 11 ай бұрын
Can the pressure pot be used with very soft - .e.g. 20A - transparent PU resin? I've heard that the bubbles can reappear when the pressure is released.
@EricStrebel
@EricStrebel 11 ай бұрын
Testing would be required, they certainly can appear with soft materials.
@dark96744
@dark96744 Жыл бұрын
How well do opaque resins take Mica powders? will i need the same amount as with a clear or will i need to add extra?
@EricStrebel
@EricStrebel Жыл бұрын
Not great, you will get some effect in opaque, but you need a lot of mica for that
@janpucnik142
@janpucnik142 3 жыл бұрын
Thank you. 😎👍
@TrenDSolutions
@TrenDSolutions 4 жыл бұрын
From which brand is the red dye in the video? How is it called this type of dye pigment?
@jaspercoutu489
@jaspercoutu489 2 жыл бұрын
Can you make a detailed video on your vacuum chamber setup!?
@bounty157
@bounty157 4 жыл бұрын
Very interesting ! Love it
@EricStrebel
@EricStrebel 4 жыл бұрын
Glad you enjoyed it!
@bounty157
@bounty157 4 жыл бұрын
@@EricStrebel Have you ever experienced issues with an over-heating resin when the layer is too thick ?
@EricStrebel
@EricStrebel 4 жыл бұрын
No
@wok1opopo1
@wok1opopo1 5 ай бұрын
nice work dose it smell like regular polister
@EricStrebel
@EricStrebel 4 ай бұрын
No
@oliverioyg
@oliverioyg 4 жыл бұрын
Great content! Could it be possible to have a video on small parts molding and casting?
@EricStrebel
@EricStrebel 4 жыл бұрын
Maybe....stay tuned 😉
@TheManeliss
@TheManeliss 3 жыл бұрын
Hi! I work in a foundry (cast iron). I use daily PU resin. For repairs or little molds. Do you use mineral filler like me?
@EricStrebel
@EricStrebel 3 жыл бұрын
Never heard of it what does it do?
@TheManeliss
@TheManeliss 3 жыл бұрын
@@EricStrebelFor PU 2 solutions, pure or charged. A filler is made from mineral... Or a mix from it with other. Pure, your PU is full liquid but have dimensions problems after hardening. When i create a fine thickness mould without filler it make fine little cracks after 1 week. With a filler, it's less liquid, but little shrinking. A filler cost half of resin... So it save money. Most common filler is marble powder. If i need strong mechanical properties it's an aluminium powder mix. I can give you a link and references to you. Prices are not hide. It's only for european professionnals. But you can better understand!
@irishwristwatch7544
@irishwristwatch7544 3 жыл бұрын
Hey Eric, is it possible to use a resin 3D print directly as a mold for PU(70)? Do you think it could work if enough mold release is used? Thank you in advance :)
@EricStrebel
@EricStrebel 3 жыл бұрын
Yes
@georgekassabian5214
@georgekassabian5214 3 жыл бұрын
What type of PU is it ?? in order to buy in big drums, I like to know the company who is preparing, like to know the time rise, the expansion ....etc.
@TailEndCustoms
@TailEndCustoms 4 жыл бұрын
Very good info👌
@EricStrebel
@EricStrebel 4 жыл бұрын
Glad you liked it
@marcelkrause3589
@marcelkrause3589 3 жыл бұрын
Nice video! A lot to learn for a beginner. One question: is there anything that speaks against using that method for producing a small motorcycle fairing part?
@EricStrebel
@EricStrebel 3 жыл бұрын
No, I don't think so
@marcelkrause3589
@marcelkrause3589 3 жыл бұрын
@@EricStrebel thanks Eric
@divertechnology
@divertechnology 3 жыл бұрын
i love the real stuff - from real doers
@TheGnthreman
@TheGnthreman 2 жыл бұрын
Try making a batch that is a little thicker and mix them into one
@balkntv
@balkntv 2 жыл бұрын
I have a question. I use 60A shore polyurethane resin vytaflex 60 and i vacuum all the bubbles in my pouring container but when i pour it into my mold i still get bunch of bubbles. Do you think I should maybe dry out my mold or is there a pouring technique? Thank you.
@EricStrebel
@EricStrebel 2 жыл бұрын
Pouring creates bubbles, and urethanes are moisture sensitive, you can heat the molds, but probably best to get a pressure pot
@balkntv
@balkntv 2 жыл бұрын
@@EricStrebel what about silicone resin? I have been wanting to switch to that. Will pouring silicone rubber resin create bubbles? Appreciate the help.
@EricStrebel
@EricStrebel 2 жыл бұрын
Some, yes. Use vibration to remove the bubbles from the silicone after you pour
@fcesur77
@fcesur77 2 жыл бұрын
What are the advantages of using a vacuum chamber? Does it decrease amount of released carbon dioxide through the polymerization reaction?
@EricStrebel
@EricStrebel 2 жыл бұрын
Removing air from the silicone is the main purpose to avoid trapped air bubbles in the silicone to get better reproduction and surface quality.
@joec732
@joec732 3 жыл бұрын
Hi neighbor! Nice video. Interested casting polyurethane with a hole that I can tap with a self-tapping screw. Can polyurethane be tapped like that? Also wondering if threads can be cast in when using a silicone mold.
@EricStrebel
@EricStrebel 3 жыл бұрын
yes, it can be drilled and tapped
@joec732
@joec732 3 жыл бұрын
@@EricStrebel Thanks!
@1337FLINT.
@1337FLINT. 11 ай бұрын
Hello, i want to make rubber tire for hot wheels, i make the master mold with 3d print sla, which means the material is solid. My question is should i recast it with polyurethane resin or silicone resin? thanks, sorry for this long question
@EricStrebel
@EricStrebel 11 ай бұрын
Depends on the properties you want, but probably PU into a silicone mold
@1337FLINT.
@1337FLINT. 11 ай бұрын
@@EricStrebel I need to make the tire rubbery feel, so i need to recast it with pu silicone?, that is hard isn't it? is that okay to pour silicone resin into PU? it will come out easily from the mold? sorry for asking too much, i have zero experience about this
@EricStrebel
@EricStrebel 11 ай бұрын
Pu is polyurethane....comes in different durometers, check with the mfg for the type you want for your project. Good luck
@1337FLINT.
@1337FLINT. 11 ай бұрын
@@EricStrebel Thanks, soon i'll find more info about it
@loan20000
@loan20000 Жыл бұрын
Hi, I am trying to dye my white polyurethane resin. Do you have any suggestions on which dye or other material might get me a rich opaque black? Thank you.
@EricStrebel
@EricStrebel Жыл бұрын
You need a colorant and not a dye to get the most opacity
@MyllerSWE
@MyllerSWE 4 жыл бұрын
*****! Would the "brown" one be polished into a copper sheen or does that need more copper powder per resin and maby doing a slush cast?
@EricStrebel
@EricStrebel 4 жыл бұрын
That's a good question, I don't know but I tend to think not.
@arinarici
@arinarici 2 жыл бұрын
hi eric , is polyurethane resin dangerous ? , can i cast in my bathroom (With mask ofcourse)
@EricStrebel
@EricStrebel 2 жыл бұрын
It has a low odor, you should be fine with a mask. Open the window and stay safe. Good luck
@tonylaforest2725
@tonylaforest2725 Жыл бұрын
Hi Eric, love your KZbin vid's Watch em all the time, well i'm getting to end of your list so i'm looking forward to some new ones. Here's a question for you or maybe even a new video for you to do. Here we go... so my wife bought these silicon ice cube trays, they are awesome, ice comes out so easily without busting up the counter trying to get the ice out. Problem is she has no recollection where she bought them or were they a gift or something. So I have the mold, the existing ice cube tray, just wondering how you would go about replicating them and what products you'd use. I think my biggest concern is that whatever I make them with has to be food safe so I don't poison someone, ewww... now there's a thought eh lol! Anyhow, I look forward to hearing from you or maybe watching your ice cube tray video... hey I hope to get credit for the inspiration. cheers and thanks for the interesting and fun material you put out there, Tony L (Ottawa, Ontario)
@EricStrebel
@EricStrebel Жыл бұрын
Find a food safe silicone...made a vid about that already kzbin.info/www/bejne/d5qzfoh-hayKqJY
@lukasmercer9681
@lukasmercer9681 3 жыл бұрын
what kind of dye did you use and is the Vacuum necessary?
@EricStrebel
@EricStrebel 3 жыл бұрын
You need an alcohol-based dye and vacuum is not necessary but will give you much better results
@escrabio123
@escrabio123 4 ай бұрын
Im trying to make fake bones with polyurethane systems but is quite hard to get them done well
@SantaDragon
@SantaDragon 11 ай бұрын
Interesting. I would have guessed to use vacuum to pull out every bubble, instead preassure it.
@EricStrebel
@EricStrebel 11 ай бұрын
You really need both to get a good part.
@deansnyder
@deansnyder 2 жыл бұрын
Do you also pressure pot your silicone molds? Don’t they distort under pressure if not?
@EricStrebel
@EricStrebel 2 жыл бұрын
Silicone is not cured under pressure
@ranajitmistry1979
@ranajitmistry1979 Жыл бұрын
How does a polyurethane resin cast part behave at high temperature above Tg? Will it burn or porus? Thanks in advance for your answer.
@EricStrebel
@EricStrebel Жыл бұрын
It will get soft, check the specs from the manufacturer before us use it, to find the correct resin for your application
@barnhartequipmentbrentbarn5662
@barnhartequipmentbrentbarn5662 8 ай бұрын
can you cast in specific SHORES ?
@EricStrebel
@EricStrebel 8 ай бұрын
Yes
@26mridul
@26mridul 4 жыл бұрын
Hello Mr Eric, can you twist and break some parts so we can get an idea of their strength? I'm trying to use polyurethane castings for a joystick for a short production run and if successful I'll get them injection molded. Would be nice to see a comparison.
@EricStrebel
@EricStrebel 4 жыл бұрын
resins come in many many hardnesses, use the one that suits your need, shore 80 is a good place to start it is very similar to an ABS lego, best of luck with your project
@romansonsmart3366
@romansonsmart3366 2 жыл бұрын
How long does it take polyurethane resin to dry?
@EricStrebel
@EricStrebel 2 жыл бұрын
Actually it cures, and it depends on the resin you choose
@JoggingFoxProductions
@JoggingFoxProductions 2 жыл бұрын
Is it possible; if I were to make a thin cast, to cut a few sections in the middle of it
@EricStrebel
@EricStrebel 2 жыл бұрын
Anything is possible you would have to cut the mold from the inside so you could remove your part. If I understand correctly what you're trying to do
@JoggingFoxProductions
@JoggingFoxProductions 2 жыл бұрын
@@EricStrebel I was talking about the cast made from polyurethane resin, would I be able to cut it using a crafting knife?
@EricStrebel
@EricStrebel 2 жыл бұрын
Should work
@JoggingFoxProductions
@JoggingFoxProductions 2 жыл бұрын
@@EricStrebel Alright cool, can I spray said cast with Primer Sorry if this seems like a stupid question, I'm a first timer, I need to make sure that after casting it, I can Primer it and then paint it my desired colours
@EricStrebel
@EricStrebel 2 жыл бұрын
Yes, The cast part can be primed and painted should not be an issue
@Inkulabi
@Inkulabi 2 жыл бұрын
🙌🥇
@WhenDoesTheVideoActuallyStart
@WhenDoesTheVideoActuallyStart 2 жыл бұрын
Don't you need to sand cold cast parts to get the metallic look?
@WalkingSideways
@WalkingSideways 2 жыл бұрын
That's what I was thinking, saw a few videos from manufacturers and they all sand with wire wool to reveal the metallic effect.
@EricStrebel
@EricStrebel 2 жыл бұрын
You can sand it a bit if you want, try and see how it goes
@Vizenzo187
@Vizenzo187 4 жыл бұрын
Nice flag! Greetz from Amsterdam 😉
@neatpolygons8500
@neatpolygons8500 3 жыл бұрын
the introduction is wholesome
@WazMan1234
@WazMan1234 Жыл бұрын
can you reuse syringes, or do you need a new one for each pour ?
@EricStrebel
@EricStrebel Жыл бұрын
You can reuse them multiple times
@WazMan1234
@WazMan1234 Жыл бұрын
@@EricStrebel are you cleaning/flushing them out immediately after use? Which solvent do you use ?
@EricStrebel
@EricStrebel Жыл бұрын
Denatured alcohol
@CNC860
@CNC860 4 жыл бұрын
MotorHead = Subscribed!
@EricStrebel
@EricStrebel 4 жыл бұрын
Awesome 🤘
@BTech5
@BTech5 2 жыл бұрын
How does the polyurethane hold up to UV light
@EricStrebel
@EricStrebel 2 жыл бұрын
Depends if you get UV stable resin or not
@maedeer5190
@maedeer5190 2 жыл бұрын
whats the flexible one called
@AntiThesis10125
@AntiThesis10125 2 жыл бұрын
Epoxy or polyurethane? What is the composition? My PU has a 300s potlife so no way I can degass it
@EricStrebel
@EricStrebel 2 жыл бұрын
use a different material with suitable working times.
@catkudaterbang7277
@catkudaterbang7277 2 жыл бұрын
yo, motorhead sticker!
@negotiableaffections
@negotiableaffections 4 жыл бұрын
I wish you were my neighbour, but i wouldn't just be yours...I'd also be your workshop infestation too! Actually, you've proved beyong doubt that home casting is a lost cause without a good set-up. [pennies are being saved!]
@EricStrebel
@EricStrebel 4 жыл бұрын
Good equipment is valuable for this process to be successful
@godurmumishot
@godurmumishot 3 жыл бұрын
what if I donot have a pressure pot?
@EricStrebel
@EricStrebel 3 жыл бұрын
Vibration or different resin
@godurmumishot
@godurmumishot 3 жыл бұрын
@@EricStrebel thank you.
@Kianarevision
@Kianarevision 4 жыл бұрын
\Awesome upload! I hope you'd enjoy my videos too. Keep up with the fantastic work! 💛❤️
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