mould with poor surface finish

Author	Message
Wout Chauvaux	Wout Chauvaux posted 5 Years Ago HOT Topic Details
Group: Forum Members Posts: 1, Visits: 1	I made a mould out of glass fiber, based on a cf part i want to recreate. But as it was my first time ever working with composites and resin, the surface finish of the mould isnt ideal. (has dry spots where there is no even layer of resin) What would be the the easiest way to get a better finish? Would i just cover my mould in another layer of resin or cover the holes with filleting wax?
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MarkMK	MarkMK posted 5 Years Ago HOT Post Details
Group: Forum Members Posts: 338, Visits: 2K	It really depends upon the extent of the imperfections If the imperfect areas are relatively small and the mould is fairly flat in these areas, then you could key the surface and apply some additional gel coat (using a wax additive to ensure the gel cures tack-free, or cover the repaired areas with tape once the gel has been applied) You'd then sand the repairs to blend-in with the surrounding areas and compound/polish If you're only looking to make a single part with the mould, then you could fill the damage with filleting wax, but it can be tricky making it blend well with the surrounding areas. If your intended part will be made with an in-mould coating, this will permit a bit of flatting and polishing afterwards so the areas of the repair aren't so visible where the mould was wax covered.
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