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StealthAssassin
11-22-2009, 12:59 PM
Has anyone used this for mold making?
CDK
11-22-2009, 02:23 PM
I bet you're a headbanger!
StealthAssassin
11-22-2009, 02:31 PM
I bet you're a headbanger!

??? I don't get It... What Is that supposed to mean?
StealthAssassin
11-26-2009, 08:05 AM
So noboby can comment on this filler additive In the mold making process?
Herman
11-26-2009, 09:45 AM
ATH is a common material in mold construction. It limits shrinkage in polyester resins. All rapid tooling systems are full of it.

A suggested layup:

-tooling gelcoat
-vinylester with low tex CSM (2 layers)
-rapid tooling system, follow procedure of manufacturer, or use low shrink polyester mixed 1:1 with ATH
-topcoat (please do protect the ATH filled resin from moisture)

View Full Version : aluminum trihydrate