I’ve received some more questions about Fiberglass Mold Making Gelcoat and how to end up with a high gloss shiny finish.
When constructing a mold for duplication of parts, there are several considerations that must be addressed. The main reasons for using tooling gelcoat versus finishing gelcoat have to do with the hardness of the finish and the shine of the finish.
The finished surface of your mold should be abrasion resistant. Polyester gelcoat is used for making tooling masters and molds where good gloss retention of the surface is of paramount importance. A high gloss finish of the molds surface allows for easier release of your parts and thus extends the life of the mold. Read the rest of this entry »

