ok so ive been watching youtube videos on how to make custom fiberglass and CF parts, and it doesnt look all that hard.

i went out to the crafts store today and bought some foam to start sculpting into a mold for a headlight air duct. my question is this:

this foam that im using is very porous, and doesnt really seem suitable for fiberglass or cf layup. what kind of coatings are out there that a DIYer like myself could coat the foam with once i have it in the correct shape? is there some kind of resin or plastic coating that i could put on this foam?

 

ok so no one has any idea on what im talking about

 

jus tin case anyone eer searches on this, i ended up using masking tape, then i used fiberglass, and then i waited 24 hours and pulled them apart. acetone is used for disolving foam.

 

How did it turn out.

 

just ran across this thread. i use reynolds wrap, 'tin foil', to cover whatever i use to make shapes. it seperates from the fiberglass really easily once dried, for the most part. a light sanding will get the rest and it's cheap. just an idea. good luck with what you are making.