Author Topic: RTV rubber  (Read 4031 times)

Offline Joe

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RTV rubber
« on: October 22, 2005, 09:46 AM »
o.k. I dont know if theres already a topic about this but can someone give me a tutorial on rtv rubber molding.Need to cast a atte gunner head (20 times) and a fox helmet .
Cheers!

 - Joe

Offline magillafett

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Re: RTV rubber
« Reply #1 on: October 22, 2005, 09:58 AM »
FFURG has just about anything you need to know about customs and making them. In fact, here's the link to exactly what you're asking:


http://www.ffurg.com/casting_and_molding/rtv_molds.htm

Offline Joe

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Re: RTV rubber
« Reply #2 on: October 22, 2005, 10:02 AM »
I know i'm a member to ffurg too but sadly i'm a idiot with out pics.(with the big words like the and do lol)
Cheers!

 - Joe

Offline CHEWIE

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Re: RTV rubber
« Reply #3 on: October 22, 2005, 11:28 AM »
Have you done any sort of google search?  I have no idea how you would go about this either.

 :P

Offline Joe

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Re: RTV rubber
« Reply #4 on: October 22, 2005, 12:24 PM »
not much (sueful) stuff comes up.I'll just go down to home deopt and ask someone.need to go there to get the rtv,resin,and a sharp blade for that dang foamcore.
Cheers!

 - Joe

Offline Delaton

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Re: RTV rubber
« Reply #5 on: October 22, 2005, 09:11 PM »
NoMercyJoe, you can get RTV rubber at: POLYTEK

I use Platsil 71-20 1:1 ratio Silcone RTV rubber.  Home Depot won't know what the heck you're talking about.  The RTV rubber runs about $40 shipped for a trial size.  They usually give a 1/2 your first trial of any new product.
« Last Edit: October 22, 2005, 09:13 PM by Delaton »

Offline Ryan

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Re: RTV rubber
« Reply #6 on: October 22, 2005, 10:05 PM »
I get mine from http://www.hobbycast.net/ They were giving away a free DVD tutorial awhile back, I'm not sure if it is still going on.
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Offline Joe

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Re: RTV rubber
« Reply #7 on: October 24, 2005, 05:14 PM »
true,they said go to michaels.anyone know where to get on in a store.(would michaels work?)(anyone think michaels would have the supplies foe a simple latex cast)
Cheers!

 - Joe

Offline Smartypants1635

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Re: RTV rubber
« Reply #8 on: October 24, 2005, 06:22 PM »
i dont know but i got my latex rubber from hobbytown USA

Offline Ryan

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Re: RTV rubber
« Reply #9 on: October 24, 2005, 07:00 PM »
Micheal's won't work. Speciallty stores like Hobbytown USA woulpd be better. But your best bet is to order online at either the site delaton or I suggested.
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Offline Joe

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Re: RTV rubber
« Reply #10 on: October 24, 2005, 08:12 PM »
on the site Ryan gave me,do i have to buy all that fancy smancy wax and mold realser to brush on hte wood before mold making?
Cheers!

 - Joe

Offline Ryan

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Re: RTV rubber
« Reply #11 on: October 24, 2005, 09:06 PM »
Not if you don't need it, no. I buy the Hobby mold 160. And bought a pattern release spray for 2 part molds. Wax is for sculpting and recasting existing pieces to sculpt. the mold release is uneccessary, if you are just casting plastic figure parts you won't need it because plastic isn't porus enough. if you feel you need a release agent you can but that stuff, but a light dusting of talc powder will work just as well.
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Offline Glassman6

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Re: RTV rubber
« Reply #12 on: October 26, 2005, 03:12 PM »
I use smooth-on's Smooth Sil 920 and i have yet to use an releaser or anything else.
Its very durable.

Offline Joe

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Re: RTV rubber
« Reply #13 on: October 27, 2005, 07:00 PM »
for now I figured I will try something a guy at micheals said (surprisingly) sculpy mold and some plaster of paris.
Cheers!

 - Joe

Offline Ryan

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Re: RTV rubber
« Reply #14 on: October 27, 2005, 07:29 PM »
Sculpey molds won't hold up for 20 castings. And it is much harder to do a 2 part mold with sculpey.
Big Damn Hero Productions

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