how can I buid a part with fiberglass(please explain complete).?

Answer 1

Step one: You need a mold of the part you are going to build. The mold needs to be shaped so the part can be extracted from the mold and the mold must be coated (waxed) to keep the part from sticking.

Step two: Coat the mold with Gel-Coat approximately 18 to 20 mills in thickness. Gelcoat is a polyester coating used in fiberglass parts.

Step three: Laminate fiberglass reinforcing mats with laminating resin (polyester resin). I don't recall the exact ratio by weight of resin to fiberglass but the glass as to be fully wetted out with the resin, yet you don't want pools of resin either.

Step four: The interior of the part is usually coated with an enamel resin (contains wax). The laminating resin will not fully cure if exposed to oxygen and will remain tacky on the surface without the enamel resin.

Step five. Trim the part with a sharp knife after the resin has gelled. If you wait till it's fully cured you'll have to trim it with a saw.

After the part is cured pop it out of the mold. It is a good process for making moderate quantities of parts.

Best I could do with a fallible memory.

Answer 2

buid..? or build...?