Prop: Shop - Molding & Casting 101: Brush on Molds for Helmets & Masks

Brush on molds are the easiest way to make a mold of your helmet or mask props! Bill gives you the rundown on how it's done.
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• Molding & Casting 101
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[@kakacrafting]

Their work is excellent! Inspiring! Congratulations.

[@laurakampf]

watching your videos really makes me wanna get started in prop-making! it looks like it´s so much fun! you do an outstanding job explaining the steps. (and i love my sticker in the background :) )

[@danedamari7380]

Pro trick : you can watch series on Flixzone. Me and my gf have been using it for watching loads of movies during the lockdown.

[@aryanderek109]

@Dane Damari Yup, I've been using flixzone for since november myself =)

[@ashf.d.6063]

I recently discovered this channel. I am now going back to watch every video and loving every second of it.

[@Grimfaxe]

Ha! this is great! I have a piece that I thought about doing a mold of (never done it before) And now when I look in my subscribers feed you have done a video about it! Yes! Winning at life!! Thanks!

[@jimmcgill350z]

Hi Bill. Just watched the Q&A episode on this playlist and got my answer. Thanks, keep up the good work.

[@AltF4Cosplay]

Omg I have smooth-on in the mail to make a Reaper mask and this video couldn't have been timed better! Thanks Bill!

[@digadigado]

the flexibility of the vaced plastic could cause problems

[@lukeplays9938]

Looks really good! been taking notes in word to print for later reference, thanks for the help!

[@lonetengu]

Really wish I had found this before I slushed out my pieces for the first time. Very informative and thorough.

[@seriomarkj]

cant wait to see the slush cast, ive had ideas for a mask for a while and just need the courage to try it, so here we go

[@usafBrett]

Awesome video and great straightforward explanations!

[@77Zona77]

Thank you, adding this to Favorites and then the slush cast video upcoming

[@Geeksmithing]

Good stuff man! :) Looking fwd to the next installment!

[@catherinefisher6188]

That was awesome!!! I learned so much in this video! Thank you so much for sharing!!!

[@Th0r2814]

Hey bill I used this stuff in the past called mold builder and it's basically a jar of silicone that can be used to to make a brush on mold. It recommends that you do 10 coats but it's not bad on the wallet at about 30$ for a little container of it. You can do probably 3 molds maybe more with just one container.

[@lesliefaye8001]

This is exactly the video and information I've been looking for, thank you!

[@punishedprops]

You're welcome!

[@OMechanicum]

Just the video I was waiting for. Time to make a mold of my Helmet.

[@tieyourwheels]

great video Bill!

[@jimmcgill350z]

Hi Bill, love this video so much you have inspired me to have a go. Just had a load of Smooth On products delivered but I'm wondering did you use any mould release on your blank?

[@larsvanwijgerden9246]

Another good video such as always!

[@elcoolmaster8760]

thank you for all the tips

[@segoviaale7797]

You're gonna love this. So I started my first silicone mold using this video as a guide two days ago. I bought all the items you recommended, double of everything. I'm on the part where you add the plasti paste and I didn't realized this but the company I bought from on amazon gave me one kit of plasti paste and another of Smooth- Sil 940 which happen to have identical boxes. I did not order Sil 940. So with great eagerness and vigor I removed the clay border and trimmed the rebound 25, and started mixing what i thought was plasti paste...Two layers later... I was confused because the paste didn't look anything like the video so looked at the box to see what I did wrong and to my horror "Platinum Silicone Rubber Compound" caught my eye. Im waiting for it to dry, wondering what to do next. Laugh out Loud. Love the video by the way.

[@punishedprops]

Oh my goodness! What a mix-up! Good luck on your next attempt!

[@TheTurtledovMovies]

I love these!!!

[@KRGraphicsCG]

This is a very interesting way to do brush on moulds... I wonder if this process would work on models such as a full characters with a base or designs where there is space between legs.

[@spiderknight89]

your videos are awesome, and i am studying mold making for my spiderman faceshell.

[@BubbleChumpkins]

i love this, thank you so much. soooooo many people make super overly complicated tutorials on how to do this and plus they never link anything they use. so this is a really big life saver for me and the mandalorian costume i am making lol

[@BubbleChumpkins]

+BubbleChumpkins also what type of clay did you use for holding up that one small piece you made a mold of?

[@BubbleChumpkins]

***** thank you so much! this is really a big help

[@giuseppemangiafico2522]

Hello Bill. Big fan and I really enjoy all the work you guys do over there. I was curious if rebound 25 can be used for making a mold of possibly a statue or model and not just masks or helmets? I hope to hear from you and thank you and everyone at Punished Props for the great content.

[@MarisArmoury]

This series of video's is very informative! Now I am wondering, could you make your jacket from plaster?

[@toastthegreat9801]

You guys are the best

[@REDFOOT79]

I know this is an old video so there might not be a response but here goes lol. I just finished my first mother mold today and your video was my guide. Thank you very much for sharing your videos. Now, my question is how do I clean the silicone after use ?

[@davidebrag]

thank you very much yuo have been very usefull now i know how and how much i must buy to mak a mold .

[@angelsbynoemi]

wow I'm glad I found your Channel!! can you please tell me if the Rebound 25 can or should be degas on the Vaccum chamber? Thank You!

[@spiderknight89]

this video is helping me with my faceshell

[@KevinReillySV]

Also for beginners you can and I like to add some color to different layers to make sure each layer is completely covered

[@punishedprops]

Yes that's a great technique!

[@vertigo0331]

I had no idea I wanted to know how to do this... And just in time to be ready for Halloween!

[@mobius251]

I watched your entire series on casting and mold making and actually own your foamsmith books. My question is what would you make your helmet out of before you make a mold of it. I know in prior video you said you wouldn’t use Eva foam so was wondering what instead should I make a helmet out of if I want to make a mold of it.

[@hollowwxlf]

just found your channel, you got my sub already, you got me with the lord shaxx and vex cartoon, didn’t even come here for anything destiny related lol

[@punishedprops]

Hah! Well thanks, we really appreciate the support!

[@renodangelo]

Awesome work as always, Bill. I am really getting into making my own props, but I was hoping you might have some advice. Do you have a tutorial video that explains how you make your blueprints? I've been using other peoples -- like yours from the Foamsmith book -- but I'd really like to make my own. There are some weapons that I'd like to make that I can't find free/accessible 'prints for. If you don't have a video, yet, could you give some advice to an amateur propsmith? Thanks man, all the best.

[@artsculpture1024]

Very cool.

[@MALprocrastina]

I would love to have these products in my country.

[@WillJamesBTB]

Perfect! I want to try molding and casting a shield I made. Is this plus the upcoming slush casting video the technique you'd recommend for a shield (seems similar to a mask only a bit larger). Also, if I want to make a mold out of something made with foam, is there anything special I need to do with the foam master first?

[@robotochi2045]

Nice job

[@punishedprops]

Thank you!

[@douglas71322]

Hi Bill. Great tutorial... Look, I am about to receive a helmet ABS kit and I would like to recast it and play around with some different finishes, but using vacuum form method. Is there any technique of recasting and keep the original size of the mold after vacuum it? Thx a lot!

[@douglas71322]

Thx a lot for the reply. But if I vacuum form over this new hydrocal bulk, the final size will be bigger than the original bulk, right? (due to the 2mm polystyrene used on the vacuum). That's what I would like to avoid. That's the real trick I cannot figure out !!! :-)

[@caminios.]

Hi Bill! I want to cast a skateboard and was wondering what material would work best for this?

[@mrsupersplinter]

How do you keep a concave mold like that mask from collapsing in on itself when slush casting?

[@xxxxzorroxxxx]

Thank you

[@kylejolly7751]

Thats cool.

[@mariaaliprando8956]

I used the Rebound 25 Silicone in my first attempt. The product worked great but I was kinda sloppy in my application so I purchased another round to do a second attempt. However, I got the wrong product in the mail. I got OOMOO 30 Tin-Cure Silicone Rubber. The instructions look same but I am going to hold out for the correct Rebound 25. However, since I have this 30 tin-cure do you have any project ideas or suggestions for how to use this other product? Thanks so much!

[@5641616341485]

I want to make a mold of a pepakura bondo LOCUS helmet from halo 4, What are your thoughts on which technique I should use.

[@somethingnerdy2023]

Hey so I've got an iron man helmet is the trial size of plasti paste you used enough for that or should I switch to a gallon

[@thomasbernos9563]

Hi Bill, Do you recommend using a vacuum chamber for Rebound 25? And second question related to your upcoming slush casting video: Have you tried making props using the FOAM-IT series, VS Urethane? I would be curious to hear or maybe watch a video on that! I am making a very large creature mask and worried about the urethane weight.

[@adamrose4086]

Hello. I really enjoyed this tutorial to create a mask ichigo anime bleach. Could you share the file PDO this mask ?

[@chrisott2]

Could you have done this as a matrix mold? When would you use a matrix mold vs a brush on mold?

[@ewanneilson4314]

When you used plasti-paste for your jacket mould, could you substitute that for some kind of plaster?

[@Ironbear_armoury]

Hey bill did that trial size rebound 25 cover that dragon preist mask?

[@hulkhogan503]

Will this work if I want to make a mask out of fiberglass??

[@lukeplays9938]

also if you have no scrap silicone what can you use for registration keys?

[@maseomeley9241]

Can you use normal silicone to coat the inside of a 2 part mold made from 2 Styrofoam blocks?

[@matthewerdman]

How large of a mold have you made? I'm interested in making a B-9 replica and I was thinking about using a method similar to this for the mold. I read that I should make a plug out of foam and wood, then gel coat it and fiberglass it. You used silicone which seamed to give a better result, or very similar. I wanted my mold to produce a life size replica, so... it would be really, really big. Any suggestions?

[@lsevent]

Great video. Didn't realize how shitty the silicon I used (Tap Plastic) was till I seen Smooth-on actually being applied and not just in still images. Definitely using Smooth-on next time...

[@lsevent]

+Bill Doran Used their platinum silicone. I tried a lot of different measurements with thickener going by weight. Made the mold successfully, but just didn't like the consistancey. Great store though, I actually near them.

[@davidarguedas5735]

How could yo control de thickness of the walls?, I have to do like a tablet prototype(with walls, not completely solid), and I'm looking on how to do it, seems to me this can work. It is possible to make another inner mold with a 3 millimeters inner offset and use it like a restrictor and form the wall to a certain thickness?......help me please xD....very good tutorial

[@siddiaz1623]

it looks really tasty

[@punishedprops]

Forbidden yogurt

[@mindstorming799]

ok but how do you make a regular mold without a helmet to base it off, im trying to make a dark helmet helmet from spaceballs because i cant find one for sale so i decided to make one but everyone just makes a mold with the helmet under can someone pls link me a video on how to make one without a mold.

[@TheWildLancer]

You cant make a mold without a model in it. If you want to make that helmet then do research on how people make them. Usually with different materials then you mold it and cast it in the material you actually want.

[@cocobutterfo]

Could you use Free Form Air Epoxy for the jacket instead of plasti paste?

[@TheSonNamedSet]

oh dduuuddeee that guy made a ghoul mask 😲😍

[@larkerpudwig]

So the outside jacket mold is more for support when you’re doing the actual casting is that correct?

[@78amir.j]

Thanks it was wery helpful but I have a question after you finish with brushing the silicone on the sculpture how do you clean your brush to use it next time ? I don't know what to do with my brush

[@punishedprops]

I usually use disposable brushes

[@buckaroosan5571]

What is that white block that you used to mold on. I assume it is a nonstick smooth surface of some kind?

[@REDFOOT79]

Is there a dye that I can get from Walmart to color the silicone ?

[@DoofusInc]

Since you're not using the actual Brush-On product, will any RTV silicone work with this method?

[@DoofusInc]

Thanks a lot for your reply! One last thing. Since many Smooth-On product are virtually nonexistent where I'm from can I use, say, plaster bandages for the jacket mold?

[@123me456meme]

Nice job thank you ! Little question : If the piece i've to duplicate has a cylinder shape (10cm diamètre, 30cm long), should i cut the cast along the lenght or would i be able to remove the cast like a sock by returning it without breaking it?

[@punishedprops]

You should be able to sock it!

[@sMiLysSympHoNy]

Did you use a release agent on your mask before spreading silicone on it??

[@pblackcrow]

I need some help with a large project I am doing for GenCon. Basically I need fake metal spikes of varying sizes, and I need them to be rubbery, so there is no chance in hurting people, but able to hold their form and look REAL.

[@NavigatedChaos]

I'm looking for a body safe silicone that is SUPER STRONG!!! I'm going to be making The Penetrator Bat from Saints Row and I want it to be able to swing and it not snap in two.

[@hulkhogan503]

hi I was wondering if you could show how to make a silicone mask like sculpting and making the latex mask

[@hulkhogan503]

Punished Props oh no one on KZbin has a video of molding a silicone mask

[@UthoRiley]

Awesome guide Bill! :D However this does make me wonder, at 0:39 you said you could just fill a container with Silicone and it'll make a perfectly good mold. Now given all the extra hours of effort it takes to make these brush-on molds (Curing in between steps and such) plus extra stuff like wood, hardware (nut's, blots) and all the other stuff you smeared on there, i'm curious if it really is that much more cost effective long term? Then again... I don't know much about this stuff! xD I just really like your channel and the professional crafts you produce so i haven't got the slightest clue. Anyways, keep up the good stuff!

[@UthoRiley]

+Bill Doran Nice, thanks for clearing things up! ^^

[@EndlarStudios]

What was that like block you made it on?

[@markwiggs]

hey, so I really want to learn more and ask questions, what would be the best online forum dedicated to silicon mold making casting etc?? thanks

[@punishedprops]

I usually point folks to the customer service at Smooth-On! They're great for figuring out what should be used for a project. We also have some fans who made a group on Facebook called "The Prop Tarts of Punished Props." That's definitely worth checking out, as there are members of all experience levels there!

[@bilalflier]

how do you clean the silicone off the brush ??

[@jamesmolivas3427]

This is way harder than I thought it would be. 😂

[@deven4405]

Do you have to have a jacket mold on it?

[@backforblood3421]

So how much silicone was used for the one mask?

[@logan91235]

Sorry if you've already answered this but about how many containers of rebound 25 did this dragon priest mask take and did you use it all or was there extra left over? I'm trying to get an idea about how much is needed for a standard mask. Smooth on says 4 thin layers is enough but i'd like to know how much you use

[@punishedprops]

I don't remember how much we ended up using for this mask, but smooth-on has some cool estimation calculators that should help: www.smooth-on.com/support/calculators/

[@letsgoBrandon204]

Can you recycle cured silicone?

[@cocobutterfo]

I made a mold for swish casting. I tried two test pieces, but the plastic always pools to the center of the mask, masking the nose and brow protrusion thicker than the rest of the mask. I swish until the liquid was barely moving and it still happened. How do I keep that from happening?

[@TheIcemanModdeler]

I made a 3D wooden Mask from the Jim Carrey movie and what if i need to capture the detail on the interior of the mask, should i go with a one part mold for that rather than a two part mold?

[@punishedprops]

You'll have to get creative with a two part mold to get the inner detail of a mask like that.

[@aprylnunez8914]

The dragon masks from skyrim i have all of them in the game and real life

[@cofreak91]

Do you think EpoxAcoat would also work for the Jacket-Mold?

[@cofreak91]

+Bill Doran Thank you, I will try it.

[@GeoffroAU]

Can you point me to the one where you explain what the registration keys are used for?

[@GeoffroAU]

derr of course, you only mentioned it about 4 times now I watch it back again... lol sorry, I think the first watch I was too distracted trying to hunt down plasti-paste, they won't ship it to Australia from Amazon so need to find a local supplier or one that will.

[@drewhannigan5746]

Question can you cast faces for example anime character faces?

[@mad_machine4850]

unfortunately Smooth-On molds are far too expensive to get here, so I'm curious to know whether you think using plaster of Paris for making a mold would work? As its rather cheap and easy to get here. Thank you kindly for doing all these amazing videos! :D

[@mad_machine4850]

Punished Props alright I see, thank you kindly!

[@rowrowcaboat771]

Hi! Just wondering. I'm planning on making Spider-Man face shells.. tho my brain can't wrap around the idea of covering the holes.

[@kaitlynvallieres7945]

Is there anything you can use instead of the Plasti Paste to make your jacket mold? It's really expensive and if I can find a cheaper alternative that would be great!

[@punishedprops]

You can use plaster bandages for a cheaper alternative.

[@GameplayOkay]

Could you show how to make a slipknot style mask. I think they use a harder material than silicone

[@DMAbCD]

Hello, Thank you for this very informative video set. I have a question about the registration keys. Any suggestions on what to use if this is my very first mold I ever made? Thank you

[@superspicykimchi]

how much silicon do I need for that size of mask?

[@presceltolives2076]

If I wanted to make a mold out of a helmet but the visor of the helmet is already cut out, should I add try to fill in the visor piece with something so there’s not a hole? Or am I screwed? 😔

[@BlackPoisonxD]

Idk when I slush mine it hardens pretty good then has a streamy slime texture or it puddles up

[@BlackPoisonxD]

Fast *

[@ittipontopboodsimma456]

7:27 What is the black water , tell me please Thank.

[@ZooTycoon2witchdoc1]

I have a question, do I really need plasti paste? Like cant I just pour the stuff in the pink thing lol (Im great with terms I know)

[@punishedprops]

+Cyan Fire For a brush on mold you need a mother mold. Plastic paste is good, but there are a variety of materials you could use.

[@Stormcrow_JE]

Hi Bill, any major disadvantages to possibly using Free Form AIR from Smooth-On instead of Plasti-Paste II? I've successfully used Pasti-Paste II for my first mold, following your recommendation, but saw Smooth-On's demo video (the butt-ugly Batman mask that they use to show-off the pig iron additive), and they used Free Form AIR. Worth a shot or?

[@punishedprops]

+Jim Esposito Free Form Air is nice because it's lighter. It might be more expensive though. I'd have to double check.

[@Stormcrow_JE]

Thanks, I might give it a go then!