Desperate - Polyurethane Rubber Help

[acook59]

Hey guys, so I'm trying to make a mr incredible chest emblem a la superman returns and a belt to go with it. I've been told standard polyurethane isn't flexible enough for a belt but polyurethane rubber would be. Now, here's the problem, before I buy some, does it dry clear? If so, how do I go about making it opaque and coloured ie orange or black or yellow? Can anyone please help as I'm a real newbie to this!

Many thanks,
Andrew

 

[vistaVision]

You will certainly get some good help here. While waiting for replies, check out Matt Munson's blog. A couple of years ago he was working on Superman chest emblems and belts, using various techniques and materials. Not unlike what you want to do: The Project Workbench

 

[camerafx24]

I am working on a sequel to a major film from last year (hungry any one?) and I have been casting allot of smooth cast 45 D It comes out very flexible and stays that way. it is a clear amber when cast, but you could use urethane tints and it would look great I think.

I hope this helps.

Matt

 

[amfx74]

Polyurethane comes in different densities and in clear, translucent and opaque. Most of them are as Matt has. Translucent amber but can easily be tinted.

 

[acook59]

Oh thank god for replies, had so little luck elsewhere!

I've been looking on ebay you see but i'm not "up" on the types that there are. So 45D is a good one? Is smooth cast a brand name? I'm not sure we can get smoothcast over here, is the 45D a reflection of the density or fluidity? There is polytek flex 20-100 on ebay, is this a similar thing?

As i say i want it to be coloured and opaque, would i need to add white and the colour tint that i want as well to get this effect?

Your continued advice is HUGELY appreciated!