WORKING WITH URETHANE RUBBER: Casting Urethane / Polyurethane Rubber in a silicone mold

Рет қаралды 75,441

7 жыл бұрын

Casting polyurethane rubber using a 2 part silicone mold
here are the links to the materials
Urethane Rubber
US amzn.to/3jvhmlM
UK amzn.to/2wAZQH6
Silicone
US amzn.to/3niFeeL
UK amzn.to/367Aoee
Fibreglass Gel Coat
US amzn.to/3juNOF6
UK amzn.to/3cv8tpD
Polyester Laminating Resin
US amzn.to/34rhlJk
UK amzn.to/363e5GA
Light grey polyester resin pigment
US amzn.to/36u4sAY
UK amzn.to/32XaFTW
300 gsm bonded glass fibre mat
US amzn.to/2Sorgdb
UK amzn.to/3crcIma
Mixing sticks
US amzn.to/2SlFZ8O
UK amzn.to/3cuGaYM
600 ml Mixing Cups
US amzn.to/2SlFZ8O
UK amzn.to/3j5jIru
2" GRP brushes
US amzn.to/3jtNW7N
UK amzn.to/2EuJ82G

Пікірлер: 124

@tombate3841 6 жыл бұрын

Helpful video, thank you! Look forward to watching more.

@nikhita8301 3 жыл бұрын

This is sooo helpful! Thank you!!

@NicoProps 3 жыл бұрын

no problem at all, glad it has helped, what are you going to use it for? hope you have subscribed ;-)

@WaschyNumber1 Жыл бұрын

Nice video And pu rubber is one of the best shock absorber rubbers. 🤗

@calebott3520 3 жыл бұрын

Great video, thank you

@NicoProps 3 жыл бұрын

No problem, I am going to be doing a load more maker videos so don't forget to subscribe ;-)

@kevinhale9400 8 ай бұрын

Can you cast tank tracks using this method? What is the minimum thickness you can cast with this stuff? I have a few kits that are very old and the rubber of the tracks has gone very brittle and snapped. I have been searching for a method of reproducing them for my models since they look silly without tracks, lol.

@JohnWayne99999a 3 жыл бұрын

Very nice video, thanks

@NicoProps Жыл бұрын

Glad you liked it!

@endtimefreak 3 жыл бұрын

Great tutorial, thanks a bunch for sharing! I'l be casting some vintage skateboard parts before long - God bless :)

@NicoProps 3 жыл бұрын

thats awesome, I'd like to see the results.

@kevinhale9400 8 ай бұрын

Could you mould tank tracks in 1:76 scale using this method.

@nasrullahaziz361 7 ай бұрын

how strong is this material? because I want to make a mold that can be pressed, please help me

@polyurethanemachinery 4 жыл бұрын

thanks for the vedio

@NicoProps Жыл бұрын

Most welcome

@brigoose7945 Жыл бұрын

can you use polyurethane rubber on water based base clay

@WaschyNumber1 Жыл бұрын

How much does it cost to cast one of the pu circles? Wondering if it would be cheaper to buy them or made them? 🤔

@MegaDaveNichols Жыл бұрын

What hardness did you use of the Urethane rubber?

@queercomputer 3 жыл бұрын

Thank you! Am going to try to recreate the Marc Jacob’s clear sole boots

@NicoProps Жыл бұрын

Please do! and share your results

@mosesmodise4998 6 ай бұрын

is one of those part a and b the hardner?

@Maher- 6 жыл бұрын

Thanks for the video, I want to make a key chain that have 2 colors is that possible or the colors will get mixed?

@NicoProps 6 жыл бұрын

you will probably have to pour the first colour and let it set before pouring the second colour

@chelseamills8217 3 жыл бұрын

Hi! Thank you for this video! I’m pretty sure this is the exact form of liquid rubber that I would need for my project! I tried finding the polytek PT-Flex 70 casting rubber but it’s all on back order and the link in the description takes me somewhere else 😢 Do you know what would be a good alternative to use that would yield the same result (colorable as well)?

@NicoProps 2 жыл бұрын

any castable urethane / polyurethane rubber will do, you just have to check the durometer of it, flex 70 is 70 hardness

@Samuelir96 3 жыл бұрын

Love it :p

@NicoProps 3 жыл бұрын

thanks, really glad you liked it, dont forget to subscribe for more videos coming soon ;-)

@NicoleHam 2 жыл бұрын

Hey there, I found this video because I've gotten into toymaking with a flex rubber, I absolutley love the medium and it's so fun to cast and mess with. I had a SMALL question that I can't seem to find anywhere else... how do I fix bubbles and imperfections on my rubber casts, ON the actual casts? I don't own a vac chamber so I've been extra careful with my pours, and its working great, but I'd love to somehow salvage some pieces that didnt turn out as good / have big gaps. Can you heat or melt leftovers? Or do like, a paintover or something with another mix of it? I'm just curious how people who work with rubber fix an issue like a gap or bubble hole or have any hacks. A lot of issues I run into is accidently not checking feet or platforms of my toys for bubbles, so when I pull them out, the feet have some gaps. I just dont know exactly the 'best way' to fix that *and* get a color match, other than making a new batch, holding the figure pefectly up for an hour (cure time) while I wait for it to cure? TYSM, wonderful video!

@NicoProps 2 жыл бұрын

you need to allow the air to escape the best way if you have undercuts is to tilt the mould and move it during the pour so it fills everywhere. next thing to try is to cut air channels in the mould. another tip is to dust the moulds with talc before the pour. good luck

@matenorth 3 жыл бұрын

Great video!! Do you happen to know how one can make poron foam please?

@NicoProps 3 жыл бұрын

unfortunately not no, but I will keep my eye out for a technique

@ZondaFRoadster 3 жыл бұрын

One quick question. Did you need to use any kind of release agent, or does the urethane rubber not stick to silicone either way?

@NicoProps 3 жыл бұрын

It doesn't stick the silicone, but if you want to extend the life of the mold then use a release ;-)

@amanwithhiscigaretteandcof3474 3 жыл бұрын

i watched at 2021... covid time. thanks for your lecture sir. pls continue

@NicoProps 3 жыл бұрын

thank you for watching and enjoying it ;-)

@Transformndrollout 4 жыл бұрын

Great tutorial.. Just out of curiosity, can it be used to cast items leaching into a mould made of "Blue Stuff"?..

@NicoProps 4 жыл бұрын

blue stuff?? i'm sorry i don't understand what you are asking?

@NicoProps 4 жыл бұрын

ok i just read up on blue stuff and its a mouldable thermal plastic, in theory yes you should be able to use this as the mould material

@Declan-pg8cg 4 жыл бұрын

There have been good results casting polyurethanes into relatively high detailed "Blue stuff" molds of miniatures. Even better than other more well known hot melt moulding materials.

@MsCybernet 3 жыл бұрын

Sir, what is the most suitable material for making shoe soles? Silicone rubber (with high shore) or polyurethane rubber? What is the most similar material to the sole of Dr. Martens' boots? Thank you very much! Nice video!

@NicoProps Жыл бұрын

the material dr martins soles are made out of is likely to be something like nylon which is heat moulded and more poured and cured. people use polyurethane rubber as soles on shoes

@cscutler 4 жыл бұрын

Does this rubber dissolve on the chemicals like gasoline? Can motorcycle parts be made with it?

@NicoProps 4 жыл бұрын

I'm not 100% sure , you would have to check with the stockist you buy it from

@B1_224 3 жыл бұрын

Do you know the rubber like thing they use for the heads of action figures

@NicoProps 3 жыл бұрын

I know what you are talking about but not sure what it is, it could be a high durometer urethane rubber,

@skullbellztv5642 3 жыл бұрын

Well done! We’re thinking of using this material for our skull-shaped dumbbells that you see in my profile pic to the left of this comment.... They were made with concrete in latex molds. Do you think this complex skull shape can be casted with urethane?

@NicoProps 3 жыл бұрын

Hi, I had a quick peek at your channel ;-) yeah this rubber can be molded into any shape, though I would probably say you would be better off dipping the castings to get an even coat.

@skullbellztv5642 3 жыл бұрын

@@NicoProps you read my mind dude! Just bought a couple gallons of that stuff to try out the first couple and if it works we’ll be getting more. Thanks so much!

@spaceshipearth999 Жыл бұрын

Cool idea

@MisterFizz 5 жыл бұрын

Like the scales. Got a link? What's their max allowable weight? Thx much 4 posting vid.

@NicoProps 5 жыл бұрын

I don't have a link for them i bought them in a high street store, they are just kitchen scales, I put them in a bag to keep them clean then change the bag when it gets dirty.

@ryanbarker5217 5 жыл бұрын

if you do amazon, you can get one there. however, i prefer to support businesses in my area when possible, helps keep people working so the place doesn't turn into a ghetto, lol. any kitchen store will have them. these aren't rare and expensive items. there's an outlet mall near me, next time i'm there i'll hit the kitchen store up, i think they're like $20 give or take.

@GMC997 4 жыл бұрын

Is the Urethane Rubber grippy enough to cast it in the form of tires for a robot?

@NicoProps 4 жыл бұрын

Yes it should work fine for this

@King3star 2 жыл бұрын

Great video, thx. Is the PT-Flex 70 rating on the Shore A? What is the hardness rating for silicone rubber?

@NicoProps 2 жыл бұрын

its measured in durometer normally, but you can order samples and test them with a Shore A meter

@NicoProps 2 жыл бұрын

silicone is measured in shore A, I think I used a general-purpose silicone so about 29-20 shore A

@siriustalksYT 2 жыл бұрын

What do I do if I want a matte finish? Is it the pigment or the PU that determines the finish?

@NicoProps Жыл бұрын

sorry for the delay the alert didnt come though so I have only just seen this, so if you want a matt finish you need to make sure your master has the same finish you want the finished part to have basically.

@baykalonder Жыл бұрын

Do you think we can use this to make shoes outsoles? Would it be resistant enough?

@rixochixo Жыл бұрын

wondering this same thing

@Offy-official-real Жыл бұрын

Isn't polyurethane toxic?

@kevinsmart2165 3 жыл бұрын

Hi there. Thanks for the video! When I try to cast urethane rubber in a silicone mold, the piece totally cures except for the surfaces that contact the silicone. They are forever tacky and unuseable. Any idea how to mitigate this problem?

@NicoProps 3 жыл бұрын

sounds to me like there is something on the inside of your mould reacting to the rubber most likely is moisture. try warming your molds up a little in the oven before you use them. or use some talc in your moulds, just some baby powder would do, put a little around the inside of the mould shake it around to get a good coating then bin the excess by bangging the mould out over the bin.

@kevinsmart2165 3 жыл бұрын

@@NicoProps Hello again sir! I did not realize that you had responded so quickly! Thanks a lot for the tip. I just tried coating the mold with baby powder tonight. If it works, that will be a pretty simple fix. Thanks again!

@NicoProps 3 жыл бұрын

@@kevinsmart2165 cool let me know how it turns out, and dont forget to subscribe ;-)

@jerrywhidby. 2 жыл бұрын

@@kevinsmart2165 did it work?

@kevinsmart2165 2 жыл бұрын

@@jerrywhidby. Hey Jerry, I didn't try heating it up, but I believe I tried baby powder with success. It was only the first castings in new silicone molds that turned out tacky. Subsequent castings turned out fine without anything extra to help.

@Buttjournalist 5 ай бұрын

Hi, Did you use mold release? looking for a release that removes polyurethane from silicone. Thanks

@NicoProps 5 ай бұрын

you can use a mold release but its not really needed, you can buy silicone mold release spray if you really wanted to

@Buttjournalist 5 ай бұрын

@@NicoProps Cheers bud

@tombate3841 6 жыл бұрын

How did you add the colour? I'm looking to get a metallic silver effect on some pieces

@NicoProps 6 жыл бұрын

errrrm its in the video kzfaq.info/get/bejne/psyFi8d80rLOiGQ.html

@NicoProps 6 жыл бұрын

for metallics watch my other video kzfaq.info/get/bejne/rZqCmM9k3t-sfWQ.html

@tombate3841 6 жыл бұрын

Thank you sir

@Thefireking481 5 жыл бұрын

is this the type of rubber that people use for shoes?

@kieranb892 4 жыл бұрын

Did you find out I’m trying to diy some shoes?

@NicoProps 3 жыл бұрын

@@kieranb892 It probably could be used for shoes yes.

@kucobadownload 3 жыл бұрын

Can we make outsole shoes with this PU rubber ?

@NicoProps Жыл бұрын

yes you can people dip trainers/sneakers in it all the time.

@todeap8016 2 жыл бұрын

can u help in casting nitrile rubber bellow for us

@NicoProps Жыл бұрын

sorry for the delay in response, I have not cast nitrile but it should be the same process

@nikhita8301 3 жыл бұрын

Do you think I could make shoe soles using this method?

@NicoProps 3 жыл бұрын

yeah you should be able to I dont see why not

@spaken2768 4 жыл бұрын

Is this urethane rubber resistant to salt water?

@NicoProps 4 жыл бұрын

I have no idea, might be an idea to check with your supplier

@Declan-pg8cg 4 жыл бұрын

Anyone ever tell you that you look like a young Buzz Aldrin? I'm in Ireland and I have never heard of the supplier you mentioned. Smooth on has a good range but are expensive. There are local suppliers of other products, both equally good quality and much cheaper.

@NicoProps 4 жыл бұрын

lol no i can't say anyone has told me that i look like a young Buzz Aldrin lol yeah there are various products out there just as good as smooth on , smooth on is expensive because of it being imported from the US

@foxtrot1787 Жыл бұрын

Is there a hard rubber you can cast?

@NicoProps Жыл бұрын

you can buy this in different hardnesses

@stuartkent383 2 жыл бұрын

Cool. How would it go in a marine setting?

@NicoProps 2 жыл бұрын

not sure what you mean, could you elaborate?

@stuartkent383 2 жыл бұрын

@@NicoProps would you suggest this to make a flexible fin for a board. I'm thinking of using this material with a breakaway reinforcement inside to make it rigid. Would you recommend this to be used in a salt water environment? Or would it become damaged or ineffective?

@type2523 3 жыл бұрын

Where to get it when located in Europe ?

@NicoProps 3 жыл бұрын

You can order from Amazon UK in the links above which will ship to the EU

@smarterthanthem6304 Жыл бұрын

How hard is Smooth-On vytaflex 60?

@NicoProps Жыл бұрын

a quick google tells me it is 60A shore hardness ;-)

@smarterthanthem6304 Жыл бұрын

@@NicoProps I know it's 60A but I wanted an idea how hard is that?

@NicoProps Жыл бұрын

@@smarterthanthem6304 i'm not sure how to describe it, I guess its 2 thirds as tough as a trainer sole at a guess. so just a bit softer. you can order sample cured pieces from most decent suppliers if you wanted to check it first. its what I did. I don't use smooth on products as they are expensive in the UK due to import costs and there are other brands which are much much cheaper here.

@smarterthanthem6304 Жыл бұрын

I found the polytek 70 on Amazon now, When I was searching for the past few days I didn't came across it, Now one question how hard is the material is it hard enough to use as an embossing material when pressure is applied?

@NicoProps Жыл бұрын

@@smarterthanthem6304 it should be yes, for paper and the like, if the plan was to use it for leather then milling it out of brass, copper or aluminium would be best.

@chescabler2659 5 жыл бұрын

Could you send me a sample to the USA?

@NicoProps 5 жыл бұрын

sorry i can't do that, you can often get samples from suppliers

@huzaifajawed2222 3 жыл бұрын

Can you tell me the name of this chemical?

@NicoProps 3 жыл бұрын

its urethane rubber, there are links in the description above to make it easier for you to buy ;-)

@huzaifajawed2222 3 жыл бұрын

@@NicoProps can it be used for steel wire brush to resist a lead ?

@NicoProps 3 жыл бұрын

@@huzaifajawed2222 I honestly have no idea

@huzaifajawed2222 3 жыл бұрын

@@NicoProps ok thanks!

@NicoProps 3 жыл бұрын

@@huzaifajawed2222 no problem, sorry I couldn't be of more help, don't forget to subscribe for more maker videos ;-)

@brokenhare4462 5 ай бұрын

Have you had any success painting polyurethane rubber?

@NicoProps 5 ай бұрын

I haven't tried to be honest but I expect you would need to have a rubber-based paint with a solvent in it which would also work on the poly casting as well so they bond

@happy_dutchman 3 жыл бұрын

Could you make shoe soles out of it?

@NicoProps 3 жыл бұрын

provided you got the right durometer rubber sure

@happy_dutchman 3 жыл бұрын

@@NicoProps thanks for the reaction mate. I'm trying to replicate a russian ww2 boot sole so I'm looking for ways to make a mold and cast. Your video was really useful

@NicoProps 3 жыл бұрын

@@happy_dutchman sounds interesting, share your results when it's done. just so you know the rubber I used in this video was 85A If i recall, which wasnt all that tuff due to the thickness so if i were you i would go for a higher durometer/shore hardness

@NicoProps 3 жыл бұрын

@@happy_dutchman don't forget to subscribed and like the video ;-)

@happy_dutchman 3 жыл бұрын

@@NicoProps so if I get shore 80a it will be firmer of softer?