By lofty - 7/10/2014 2:19:29 AM
I have some old door trims and I plan to use the backing cardboard to produce a mould - as a noob it's the first ever mold  . I'd appreciate advice for surface prep. The surface has a cross-hatch pattern like masonite. I plan to sand back and possible use a spray filler and sealer but would like advice. Tips and suggestions?
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By Hanaldo - 7/11/2014 3:33:58 PM
Is it actually masonite? I took it as just having a surface texture like masonite... If it's masonite then yeh, don't spray it with high build. Probably need to seal it first.
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