Can anyone suggest a RTV supplier? I am trying to look for local dealers here but somehow I haven't have any luck.

Hola Blitz.

Try www.alumilite.com

Try TAP plastic. Just got some RTV mold compond from them this weekend. Make sure you get the RTV as they also carry a urethene mold compond as well. The 1 pound kit I got was around $19 USD.
Eric

http://www.smoothon.com

Best stuff out there. They have a 1:1 rubber, which poors like water.

Bare metal foil has some too

Thanks guys for the immediate reply. I hope I can get it thru mail order.. anyways I'll make an inquiry..
M4Nut
What's the difference between the RTV and Urethane mould?

RTV (Room Tempertaure Volcanizer) is silicone based rubber compound, that's the stuff you make molds out of. You pour Urethane in the silicone mold.

Urethane comes in 2 types, rigid and rubber. Urethane rigid is resin, that's the stuff you pour into your mold, Urethane rubber is soft resin, you can make molds of it but it will not last if you pour urethane based resin in it, the part will stick to the mold and will tear it because both the mold and the resin are urethane based. Urethane will stick to each other that's why the main ingredients in industrial adhesives is urethane.

If you're planning to make molds, use silicone based RTV not Urethane, it lasts longer because they are designed that nothing will stick to it, just make sure you use mold release agent every time you cast in it.

I use urethane rubber to make soft tires, I pour it in silicone molds.
Here are some companies that manufacture RTV and Urethane.

Silicone Inc.
Smooth-on
Vagabond
PMC
Vantico

If you need more info, drop me a note.

Best

T. Chouman

Hi Tango Charlie.....
I'm still amazed by your LAV-25

Hi Blitz. Check out this link Casting & Molding. Hope this helps.

Oh wow it's been a long time since I haven't check this topic. Again thanks guys for your reply.. Hey Tango Charlie, It's good to see you here.. Likewise I admire your work!!