Making Very Large Silicone Molds

Molding a large Master Vehicle in a two part silicone mold for easy part removal. How to make a large silicone mold.
Never miss a video! Enable '🔔' All Notifications!
Vibrating table: amzn.to/38oanbj
Gi 1040 Silicone: thermosetsolut...
Simple Resin for casting: amzn.to/2P1knjA
Shellac: amzn.to/307DlrS
CPS 10 CFM vacuum pump: amzn.to/3jM1ig9
Black Skintx Latex gloves: amzn.to/3jQuwKH
Petroleum Jelly: amzn.to/2EcR5t0
Naphtha: amzn.to/3aK4sgs
Loctite super glue: amzn.to/3nXxPkx
Zap kicker: amzn.to/3qEuqJM
Elmers 16oz white glue amzn.to/38Gl4TJ
My Video Gear:
Panasonic GH5 amzn.to/35ZeQgp
Panasonic GH4 with lens amzn.to/2Nb5B7b
Panasonic Lumix 14-140 lens amzn.to/2FOxYmi
PANASONIC LUMIX G X Vario Power Zoom Lens, 14-42MM Power O.I.S
amzn.to/2J3KsJH
Manfrotto 244 Variable Friction Magic Arm: amzn.to/2X7YwIT
Manfrotto 035RL Super Clamp: amzn.to/3dbPWyf
Headphones Sony MDR7506: amzn.to/2ycntIV
Samsung 128Gb MicoSD card with adapter
amzn.to/2CcEFzW
Zhiyun Crane V2 3 Axis Brushless Handheld Gimbal Stabilizer
amzn.to/2NKp2kz
Pergear Tripod Tabletop Stand for the Zhiyun Handheld Gimbal Stabilizer
amzn.to/2NaKWjK
My Audio Gear:
MXL 990, XLR Connector Condenser Microphone: amzn.to/3elRw1K
Shure MVi Digital Audio Interface XLR to USB: amzn.to/2VzjgYa
USB-C to Micro usb cable: amzn.to/3cfcrSb
My Hardware:
Apple 16" MacBook Pro: amzn.to/2VrAI0C
Apple Thunderbolt 3 cable: amzn.to/3clTwVV
G-RAID with Thunderbolt 3 amzn.to/2uQppFx
LG 27UK850-W 27" 4K Monitor: amzn.to/3elxpk7
Apple iPad Pro 12.9-inch: amzn.to/2K5qwp7
Apple pencil 2nd gen: amzn.to/3elyisX
Apple iPad Mini 5: amzn.to/2VrJzPP
Slope stand by whip labs: amzn.to/2APaDSt
Extreme pro SD card USB-C reader: amzn.to/3e4bNb1
Apple USB-C to SD Card Reader: amzn.to/3cgGXeo
ThinkTank Shapeshifter 15" Backpack: amzn.to/2Cc6U1F
.03 styrene white www.ebay.com/i...
.03 styrene black www.ebay.com/i...
.06 styrene black www.ebay.com/i...
.06 styrene white www.ebay.com/i...
Luer lock bottles with needles
www.ebay.com/i...
Arteza Products goo.gl/v9Lda3
Arteza 24x36" Self Healing Rotary Cutting Mat goo.gl/qiXukm
Music: end credits Rurlyok
rurlyok.bandca...
Contact me through www.botzen.com for design work,
you can follow me on:
Twitter: at / botzendesign (@botzendesign)
Facebook: / botzendesign
Instagram: / botzendesign @botzendesign
Botzen Design Inc.
Industrial Design and Product Visualization
www.botzen.com
#Siliconemoldmaking #silconmolding#resincasting#moldmaking

[@MadMagicianGaming]

1:58 I hope you weren't saying anything important. I don't know if you noticed, but somebody was using a loud-ass drill while you were talking.

[@davidunderwood3605]

This is a very educational video. Looks expensive in some ways, but could save money in many. Thankyou.

[@HO-cj3ut]

I was very hurt, thank you, but why didn't you show the result as it is, because there are no errors in the piece that came out of the casting.

[@jacobs68]

I like how you provide the nuanced little tips. I’ve been wanting to give this a go on a smaller scale for some time now. Will definitely be referencing back to your work.

[@EricStrebel]

Best of luck with your project

[@dibright1445]

This was amazing and you are quite the master in your art. I don’t know all the equipment or knowledge that you do, but I did learn a lot about 2 part molds. Thank you so much for sharing your talent with everyone.

[@EricStrebel]

Your welcome, glad you enjoyed and learned something, best of luck!

[@jimlad01]

That's a really nicely made mould Eric, thanks for sharing. I have difficulty getting my silicone out of its container without getting it everywhere as there isn't a pouring spout in the lid, does your silicone come with that spout or did you add it later? If you didn't have have that spout how would you decant some into a smaller container?

[@OUMagMan]

Very nice. Wish you were a neighbor, I could use the inspiration. Thanks! Jim

[@TheMurlocKeeper]

"First thing - fire up the laser..." Oh, ok....let me just pop out to the shed and get mine fired up....uh huh... (massive sarcasm) While it's great that you have a laser cutter, and you're right to be proud of it, not everyone is gonna have one of these beasts, (due to cost) nor even the room for one. Makes these DIY tutorials so much more annoying, because you're talking about using impossible things that the regular person is not going to have. I could make amazing things too if I had thousands of dollars worth of high end equipment in my shed.....but I don't, and neither does anyone else who watches this. It would be more helpful if you showed people a way to create this stuff WITHOUT your most expensive pieces of equipment. Because here's the thing, as SOON as I see tutorials like this that start by mentioning their expensive toys, I stop watching, as I'm not going to be able to replicate it. It is not useful to me. This "tutorial" of yours is both dis-heartening and useless, because no one will be able to "follow along". Do you understand?

[@EricStrebel]

You can cut the cardboard by hand if you don't have a laser,, you could also 3D print the ring in segments

[@mytuberforyou]

If you start with the spout of that 5gal bucket at the TOP, and then rotate it as the level drops you won't need to drill a vent and the silicone will come out a lot easier.

[@EricStrebel]

Vent hole allows me to pump air in the bucket and get the silicone out faster

[@Dylanjon353]

Hi Eric, when choosing hardness of mold what are things to consider? Would higher hardness yield better surface finish (at the expensive of flexibility for demold)?

[@EricStrebel]

No not necessarily just easier to work with when it's stiffer but every mold is different so it really depends.

[@patrickkavanagh7371]

I have a polurethane rubber emblem and want to make a mold of it will silicone rubber mold be okay, will that work or would it stick permanantly?

[@EricStrebel]

Silicone is the correct material to use

[@stefanf6495]

I really envy you, doing that for a living seems like heaven. Btw, I saw you wearing a respirator during casting the PU, is this stuff really that poisonous?

[@EricStrebel]

Just being safe, can't hurt

[@EnUsUserScreenname]

@@EricStrebel my favourite approach to things in genereal :D

[@TheZahnputz]

yes, the isocyanate (in the hardener) is cancerous - in EVERY 2-part polyurethane

[@robertogonzales562]

hi eric what type mold material you use?

[@EricStrebel]

Silicone....from silicone-inc.com gi1040

[@shaynegryba]

Hi Eric, thanks for the great video! One question: what’s the purpose of tipping the mould when you’re pouring the resin?

[@EricStrebel]

Forces the bubble to the vents

[@shaynegryba]

@@EricStrebel Ah, of course! Awesome. Thanks.

[@ΔημήτρηςΚυριακίδης-μ6π]

Hello, nice video.Whats the blue liquid?thank you.

[@EricStrebel]

Silicon

[@outpost206]

I've never seen so much silicone mixed up before. At least not all at once 😂

[@SeasonalFrostbite]

I have no idea how this video eluded me. I’m glad it finally showed up in my recommended. So annoying xD I have the bell turned on KZbin!

[@EricStrebel]

I'm 100% convinced that KZbin notification system does not work correct I hear that from many many subscribers

[@SeasonalFrostbite]

@@EricStrebel it’s crazy! But I’m glad I know this channel by heart now. I’ll just catch up with a lil binge I often watch your videos when I’m casting and product making. You’ve really helped me out in my own studio and u are much appreciated around here.

[@EricStrebel]

Great

[@charliesilva3475]

I have a quick question how can I make a foam design to resin? Is there a material that I need to cover the foam to create a mold then use the mold to use resin casting? I have a design but a foam is very breakable. I don't know how to make my foam resistance resin heat because the chemicals combine with resin A and B reaction creates heat and it seems that heat will melt the foam so I want to ask how to do it if is possible. Thanks waiting on your response.

[@EricStrebel]

It's doable, just get some brushable resin and be prepared to sand a lot

[@drakeillusion6533]

Hi, I was able to do it. I follow using multiple layers of glue (school glue), super glue, and wood sealer forgot the name. It cameout the mold fine and still have the original foam product

[@sweetiepienumber1]

My success rate might be about 50/50, but hey, at least I know what I'm getting myself into! Thanks!

[@HO-cj3ut]

Hello, I have been examining your mold and trying it for 3 months. Especially in large products, bubbles accumulate. Geometry is also effective, but my engine vibration machine attracts my attention, at what rpm does it work? Also, I think that device is a sanding machine.

[@MitzpatrickFitzsimmons]

Cooler than the other side of the pillow

[@EricStrebel]

Thanks 😎

[@traviscarter9182]

Great work. Will fiberglass resin epoxy and polyester both w glass or what needs to be added to kept from sticking? Thank you for your time.

[@georgew.penguin1154]

Hey, got a question, how did you create the original car body? did you use a 3d printer for that or something?

[@GaryMcKinnonUFO]

Made my first large mold today (5 KG/11LB of silicone), then the bloody object came away from bucket, glue didn't work strongly enough, so i had to weight it down while pouring. Whats the best glue for plastic that won't be like super glue? I make the original as a 3d print then put in a plastic bucket.

[@EricStrebel]

I like white glue, but you may need something stronger for large objects

[@GaryMcKinnonUFO]

@@EricStrebel Thank you.

[@mumblbeebee6546]

Thank you for sharing your skills and experiences! I have no need for any moulded parts, but the silicone looks sooo fun to work with! I am impressed that the top of your mould does not sag under its own weight. Do you ever use reinforcements?

[@EricStrebel]

No

[@Lobzik67]

@@EricStrebel I usually use trixotropic agent and reinforcing silicon with tooling fabric.Much less silicon and lighter weight.Additionally silicon is not hanging down in the middle of the mold.Using moldmax 30.

[@EricStrebel]

Ok, good info, thanks for sharing

[@devorawallace5321]

This is the best video I’ve seen it came out beautiful can you please do a video on a one pour Small casserole dish for a three wick candles . It’s a lot of candlemakers out here that’s making cement Candle vessels but. purchasing horrible molds from Amazon. I want to make my own. I’m subscribing to your channel praying that I see a video in 2022 happy holidays to you and your family

[@CDIAS]

Thank you for sharing knowledge :) ... best regards

[@daklakdigital3691]

Great video, thanks for your hard work educating us!

[@Engineerboy100]

That was beautiful, I'll be making a part tomorrow, I should make a video. Very good job and entertaining.

[@EricStrebel]

Best of luck with your project

[@elliemae4887]

Great video! I need help making silicone molds. I am so intimidated by the whole process

[@Lobzik67]

Live is pain)))

[@robertwinters7433]

What silicone are you using today.. I think in another video you mentioned 40A. all I can find in bigger quantities on amazon is 20A or 30A. I want to make a 24"x24"x2" medallion and would like the mold to be frameless if possible. I think the 30A would bow out too far based on a hardness chart I found.

[@EricStrebel]

Correct 1040 from silicone inc

[@projectdalekmark]

I need to use clay as a support for a lens im casting. What type of clay do I need and what do I measure the mould box with. Rice?

[@EricStrebel]

Non sulfur clay, use math measure with, rice will contaminate your mold.

[@projectdalekmark]

​@@EricStrebelthank you. What equation do you use to work out the silicone needed? I'm hopeless with maths, haha!

[@EricStrebel]

Mold box volume minus object volume

[@fitness1ststeps]

great video, thank you.

[@lespaul8236]

That was amazing... Probably the best mould technique ive seen so far. Can I just ask though. All the video's I seem to watch about making rubber moulds, the people seem to use an awful lot of rubber and recently Ive priced various types up.... It costs a bloody fortune!!! That mould alone must of cost you $300 - $400??? Are the people making the moulds on here sponsored by rubber companies? What happens if you screw the mould up??? It gets very very expensive!! Is there a cheaper way of making a mould like these? Great video, thanks Les

[@EricStrebel]

Mold cost more than that..paying clients! and don't screw up, take your time. Thats why I made the video to help others

[@lespaul8236]

@@EricStrebel Thanks for the reply

[@anne5surf]

Wow! Excellent tutorial. This will save me a ton of money and more importantly, prevent trial and error disasters. Thanks for sharing your knowledge.

[@odiemarilla6096]

i know exactly what that is , i see those in car shows and paint shops all the time. . nice job man. thx for sharing your knowledge. this type of skill is not shared enough , than you

[@trailblazer8380]

I may be making a moukd from resin to fillwith expanding foam for rc plane parts definately learned a thing or two from this

[@RamonChiNangWong078]

nice, also. Nice, AMSTERDAM!

[@drewindemand]

This is such an awesome tutorial! Really nice work on this, it answers so many questions in so little time.

[@jamesharrison5004]

Are you Mandalorian fan by any chance?

[@EricStrebel]

Yup!

[@JasonCooksey]

Wow great video! You make it look easy!

[@WonderBoxed]

Amazing Eric. I hope I can apply what I've learned here in my ideas.

[@sagnimeseret6250]

yours is so much better than the rest i've seen in this platform, thanks. Galatoomi!

[@greyclassic6563]

Do you do commissions?

[@EricStrebel]

Yes

[@verbavintage7867]

I wish you had a whole class on this. Lots of the terms you used were Greek to me :) this looks so fun to learn!

[@DoRC]

Are these for automotive paint samples?

[@EricStrebel]

Yup

[@ericmccolough2482]

Wow, a big job! You said "silicon only sticks to silicon", does it stick to paint? I ask because I want to cast the headlight surrounds of my car and I'm not sure if I need a release agent? Cheers!

[@EricStrebel]

Just silicone

[@jeffbywater9429]

I love the video. You did a great job. Awesome

[@claytonjames4779]

How do you know when the mold is full and to stop pouring?

[@Thomas-zx2yt]

is there anyone in the SF Bay Area that can make silicon molds?

[@pablovalenzuela9089]

Amazing tutorial, master of craft!

[@julianjagers4900]

Amsterdam flag behind 💪💪😃👍

[@dominiquecroshaw8736]

Thank you for this tutorial, this is so helpful! I was just wondering if you can you use isoprepinol to treat the wood instead of shellac? Thanks so much!

[@EricStrebel]

Don't know

[@viranjith]

Cool video. I made a mold 12x7in recently for a similar thin profile piece. I was only able to get about 35 shots using PU. How are you able to get 100 shots? Are some silicones longer lasting than others?

[@EricStrebel]

You get what you pay for there are definitely better quality silicones out there and a lot of poor quality ones

[@AnubisBTY]

how much does that silicone cost for 20 kg? and where to get it?

[@boonricky]

Just an after thought, Why not vacuum form the part? Wouldn't the mold dip at the middle since the length is quite considerable?

[@EricStrebel]

Vac formed part would not be very quality, also the post process paint is baked so the vac formed part could not handle that.

[@nee3029]

Only 1 minute of video, just left a sub there. That's enough as a preview to know that this channel just has to be good!

[@EricStrebel]

Thanks

[@UnwrittenSword]

R u from UK . I could do with some molds for making chairs

[@theforce1491]

What a great video… well done, great tutorial. Definitely helps me do the with the stuff I want to do. Cheers. 🤘

[@EricStrebel]

Rock on

[@bjplecki5941]

I need a way to make large scale molds for numerals that I then can fill the hollowded out and have them reusable...help please.

[@EricStrebel]

Rotational molding, you will still need a two part mold if you want them to be hollow, search for rotation molding on KZbin for demo vids

[@rew741]

man i love your work ethic. respect

[@smallnuts2]

Would you use this process on a 4ft or large model?

[@EricStrebel]

Possibly, depends on the geometry

[@jwenneberg]

I need to make an even larger mold 5x5x2 feet. How can I do that?

[@EricStrebel]

Follow the steps in the video

[@CallousCoder]

Question, why not make a brush in mould, with a cheap resin or fiber glass jacket mould? That would save on expensive silicone.

[@EricStrebel]

Good question, I have to make dozens and dozens of these, so it's worth the cost. Plus I don't like dealing with fiberglass.

[@CallousCoder]

@@EricStrebel well if you can justify the cost then absolutely the easiest way to go. And yeah fiber glass and epoxy resin is hell!

[@ofekzaguri1278]

I really love how clean you work and you follow step by step, can you please do a mold for something with clips? more details and yet big enough so we can see what to do that makes the diffrence? really good video

[@elliottmaray9766]

Hello What ingredients should be added to the gelatin, it should be a tool with high elasticity and strong in winning shots.

[@EricStrebel]

Dunno

[@omarrivero818]

Waoooo your are professional, very nice job.

[@samtraji1]

I went to a school with a dude named strebel here in switzerland

[@EricStrebel]

Totally possible I am swiss and there are lots of Strebel's in Switzerland 😊🇨🇭

[@samtraji1]

@@EricStrebel his father was a book restaurator and liked to build miniature railway landscapes. His mother sang opera i think.

[@EricStrebel]

Impressive

[@evanovski]

What type of resin was used for the part? Also, if the silicone mold was a 3d printed PLA mold, would the resin casting process be any different?

[@EricStrebel]

Rampf 3070, you would need a release agent for a pla mold, not recommended.

[@Made2hack]

Great video as always! How finite are silicone molds? Can their life be extended with say rubbing them with silicone oil? Or once they crack, that's it?

[@EricStrebel]

Good question, not really sure, it will depend on the grade of the silicone, durometer and environment.

[@redsleatherbelts4433]

Excellent video Eric - 2 questions. If I wanted to make a mold for molten zinc are there silicone molds that will hold up? Second is there a size loss from the original casted part?

[@EricStrebel]

Should be no size loss, you just have to find a silicone that meets your temperature requirements, check for shrink just to be safe

[@luthergr]

This is so great, thanks! - I'm about to attempt something similar. How vital do you consider the vibration step? I had one professional tell me there's mixed results and it can actually introduce bubbles sometimes.

[@EricStrebel]

It's not a must-have just a bonus, but the vibrations do help bring any bubbles in there to the top surface

[@luthergr]

@@EricStrebel gotcha. I'll probably give it a go, as I'll likely need all the help I can get. Thanks again.

[@sirk3mno1]

What is the life span of this silicone after mixing? And what kind of hardness does it have? Great work.

[@EricStrebel]

Shore 40a, depends on how you treat your silicone, 50 parts is usually max lifespan

[@sharonkirkland5930]

How can I contact Eric Streble to make a mold for me???

[@ig7002]

What kind of resin do you use? I didn't see it in the description. I'm impressed that you didn't need a pressure chamber!

[@EricStrebel]

Rampf 3070 urethane

[@roarkemurdock3027]

Nicely done as always man! What shore hardness is this silicone? 30? Or more like 60?

[@EricStrebel]

40

[@humblehombre9904]

Is the weight of the silicone not going to bow and fill in the empty space?

[@EricStrebel]

No does not seem to The pressure of the resin seems to push back I think the part thickness is as expected

[@kathiemichelle1212]

How do i make a mold for a newborn baby doll

[@JamesRothschild]

Wonderful! Thanks Eric :-)

[@MileyonDisney]

c o o l

[@jaywinters2483]

Kill - the music exiting out

[@alanmorris4550]

I need a mold for my product and the PD companies are VERY VERY sketchy. 2 very bad experiences.

[@hkfnchsmh]

Silicone is expensive. Why don't you use extra filler material after the first layer ?

[@EricStrebel]

Good question, it's not worth it to grind up old silicone and mix it up in there The chances of it messing up the mold is too great.

[@hkfnchsmh]

@@EricStrebel thanks! I made a 1 meter by 30 by 30 cm submarine using a silicone mold inside a rough plaster+filling mold but the varying thickness (and the angles) made it almost unusable. seems like I have bitten off more than I could chew. I got one cast out of it.

[@verdantpulse5185]

I'm surprised at your use of shellac to coat materials exposed to silicone. Shellac is the one thing I've seen silicone stick to, other than other silicone. Most of my experience is with platinum silicones; is that a tin based silicone you use?

[@EricStrebel]

Tin silicone, I rarely use platinum silicone

[@davidtragen6800]

Apparently Shellac doesn't mix well with Platinum but is fine with Tin .

[@bharathr3602]

Hi Eric Great video to learn. I'm working on some project whare I need few identical parts. I can use this technique. Can I pour plastics into the mould?

[@matthewpeinado2047]

Quick question, could you use plaster as the third layer? Wouldn’t this save money and keep the thickness in tact?

[@blindinstall]

Hey Eric, you said to pour into the sprue low and at an angle so that it vents. Does the sprue have to be taller than the highest point and then cap the low vents or do you just tilt it back down and finish pouring? And why at an angle if it’s dome shaped? I’m only asking because I’m about to make about 30 very similar.

[@EricStrebel]

I usually lay it down flat once I see the resin come out the vents

[@blindinstall]

@@EricStrebel Any ideas about how to get the air out other than degassing? I only have 180 seconds on this urethane that I use from BASF. I have been pouring it over an ramped wide flat surface and letting it stretch and get thin and run off the sharp edge at the bottom of the board which has been getting rid of most of the air. What would you suggest?

[@EricStrebel]

Yes, use a different resin that has a longer pot life

[@garagemonkeysan]

Great video, well documented. Any storage considerations to help extend the life of these molds? Mahalo for sharing! : ) 🐒

[@EricStrebel]

Cool dry storage is best for silicone

[@garagemonkeysan]

@@EricStrebel Mahalo!

[@elvisburgerking8675]

after 3 trips to the DIY shop and 60 tubes of bathroom sealant later i thought i'd go on youtube and search to see how other people do it, while my mould is hopefully setting ah moment at 3:10 i now see a much better but probably an even more expensive solution. anyway tomorrow i find out if I can get my WD40 sprayed master out of my mold.

[@Crumplednoseskin]

SO I looked this up and turns out just that bucket of silicone is like $500. Guess I'll pass on this for now. Gotta eat.

[@donpayne1040]

I've got into bucket transfer at the moment - helps. I understand why you didn;t with this silicone type though. with additional cure type those bucket sides at this size would'nt be scraped enough. At least this is what I tell myself - tee hee.

[@drrock5356]

Looks like a part that can also be thermo-formed. Thanks for the great video!

[@tommeijer9905]

I want to do Make a large mould for a buddy head, 60cms tall, type size , how would be best to approach this and what product do I use?

[@charushiladalal8619]

Hey Can you make extra large to small different shapes and sizes candle silicon mold. I need it 😊

[@dennishedrick5308]

I use two degassing chambers to cut down on making sure the initial silicone pour doesn't set up too fast.

[@whatthefunction9140]

looks expensive

[@nahnotreally416]

What if you don't have all this equipment?

[@MyNamesNotLogan46]

You the man

[@leoedate]

What cardboard do you use for the keys and where can I get some

[@EricStrebel]

Whatever cardboard or chip board I can get at the local blick art store

[@SebastiaanSwinkels]

I feel I've seen this model in one size or another for quite some time now. I still have no clue what the part is used for though?

[@EricStrebel]

Color shapes for viewing paint samples

[@SebastiaanSwinkels]

@@EricStrebel Thanks! Now that you mention it, I actually think I've seen you use it for that exact purpose once or twice in a past video? Slightly smaller version though if I remember correctly?

[@EricStrebel]

Correct