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#1
11-22-2009, 12:59 PM
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| aluminum trihydrate Has anyone used this for mold making?  |
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#3
11-22-2009, 02:31 PM
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#4
11-26-2009, 08:05 AM
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| So noboby can comment on this filler additive In the mold making process? |
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#5
11-26-2009, 09:45 AM
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| 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)
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