... properties, suitable for hand lay-up method in high-grade fiberglass.SL-191C medium viscosity, high reactivity, manufactures high mechanical ... strength, versatility, suitable for hand lay-up method of ordinary fiberglass.SL-191D moderate viscosity, high reactivity, high strength, strong adhesive ... dichloroethane and toluene (benzene, toluene, xylene), etc. Solvent dilution. unsaturated polyester resin