wow what a interest
ok some tips for those who want make fenders self
the gypsum must be very dry before smoothing, painting, fiber-forming ...
the gypsum must be very smooth, very very smooth ...
the pain must be that kind what dosnt react with fiberglass resin
the gypsum form edges cant be turned inside that means tahat gypsum form must be down wider then top side
these are mistakes what we did - some smaller some bigger
we didnt smoothing very well the gypsum,
our paint wasnt good enaugh - that means it react with resin and the resin moisture ruin gypsum form - we had to wash out gypsum from fiberglass mold,
before wash we tryed pull out mould but no the form was wrong - edges turned little inside
next time better
PS that wasnt first try to do fenders
first plan was take one number bigger tire cut it half secure edges with bolts and make fenders inside that mould.
it didnt work well because the tire inside isnt smooth and the tire isnt hard enaugh it can jiggle and may be hogged

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