Get rid of Polyester Resin. Polyester should not be allowed in a domestic environment. The hardener, MEKP, is extremely dangerous. MEKP is Methyl Ethyl Ketone Peroxide. One minute drop in the eye and the sight in that eye WILL detoriate. I trust you wear safety glasses in all resin work.
The best epoxy resin I have used is MGS, epoxy resin. It has two hardeners, a fast, about 45 minutes and a slow, about five hours. The hardeners can be mixed to provide a cure time of choice. Some experimenting is required. MGS is available from Aircraft Spruce & Specialty.
Ed S
Last edited by Ed Smith; 03-12-2014 at 05:39 AM.