Silicone mask making question

[sean]

What is the best material for making the mold for a silicone mask?

[RobfromErie]

If plaster- Ultracal 30 is standard.

But fiberglass is better I hear, Lighter, lasts longer.

[icarian]

fiberglass works the best for me :) just make sure the laminating resin you use is compatible with platinum cured silicone or you'll get reeeeaaaaallly pissed off, reeeeeaaaallly fast lol!