Hey all,
Due to a lack of any available epoxy tooling gelcoats where I live, I have started making my own using laminating resin and a variety of fillers and additives. I like to add a black pigment, as the black makes it really easy to find low spots and polish to a great shine, however my issue is that most of the fillers I use are a white powder, so instead of a nice solid black gelcoat I end up with a sort of gunmetal grey.
I have managed to get away with using that colour, but I would like to find out if it is possible for me to create my gelcoats with the solid black that I'm after. I don't want to add too much pigment obviously, and anything beyond 2% doesn't seem to do much regardless. So, how do proper tooling gelcoats like the Unimould system obtain such a nice black colour?