Hot coat hints and tips
Posted: Thu May 28, 2020 4:19 pm
For years I've used SP115 resin for builds but it is a bit pricey so switched to easy composites EL2. It's fine for laminating but has been a PITA for hot coats. With SP115 I just brushed the board off and perfect finish every time, yet with EL2 it's as if I have a patches wax resist on the board. I've tried acetone, soap and water, never touching the board except with gloved hands, roughing up the surface with 60 grit, 100 grit, 240 grit, temp in workshop is 20C...whatever I do I still cant get a surface without fish eyes of varying sizes. Finishing boards is taking way longer and often requires an extra hot coat/sanding which I hate. Any ideas?