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Forum: Composites Fabrication And Repair

04-14-2007, 09:38 PM

Replies: 32

Boat mold and hull

Views: 14,458

Posted By ptxman

RE: Boat mold and hull

Dry wall mud, oh boy...... Plugs must be impermeable (sealed), hard & shiny before several coats of release wax are applied in preparation fo rteh female mold layup. If its not, you will surely have...

Forum: Composites Fabrication And Repair

04-14-2007, 09:32 PM

Replies: 32

Boat mold and hull

Views: 14,458

Posted By ptxman

RE: Boat mold and hull

That looks like typical epoxy gel, it would work fine for the first coat in the mold if you go that route. Tooling epoxy is pretty similar, just has some properties that make it a tad better for mold...

Forum: Composites Fabrication And Repair

04-13-2007, 12:54 PM

Replies: 32

Boat mold and hull

Views: 14,458

Posted By ptxman

RE: Boat mold and hull

No, for the reasons mentioned.

Internal components are very common features in all sorts of composite applications, ex a spar contained in a wing. Generaly its best to install these...

Forum: Composites Fabrication And Repair

04-12-2007, 11:49 PM

Replies: 32

Boat mold and hull

Views: 14,458

Posted By ptxman

RE: Boat mold and hull

Tooling gel is what is applied to the plug surface after mold release is applied & becomes the first layer of the female mold when making a conventional epoxy 'hard' mold. It has special properties...

Forum: Composites Fabrication And Repair

04-12-2007, 02:15 PM

Replies: 32

Boat mold and hull

Views: 14,458

Posted By ptxman

RE: Boat mold and hull

Your technique of a 'soft' mold urethane liner (A40 is probably +/- the durometer of an eraser?) plus a hard shell glass backing is more suited to other molding applications like sculptures, special...

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