Aside from molding and vacforming (which is going well so far), I am also trying to learn a bit about resins, gelcoats, and fiberglass.
I've been reading about several methods used for the face coat before fiberglass reinforcement.
I've always been unclear as to what my helmet was made of. It was fiberglass inside, but the outside was a bit softer, more matte and more sandable than other resin greeblies I have had. Solid, but a bit chalky I'd say.
Can someone explain types of materials used for the face coats, including specific brands, expense and sources if possible? I am generally aware of gelcoat, resin, bondo/resin and talc powder/resin. I am looking at attemping a silicon skin with a fiberglass support case to work in. Thanks.