... high mechanical strength, versatility, suitable for hand lay-up method of ordinary fiberglass.SL-191D moderate viscosity, high reactivity, high ... towers, car parts and other requirements of the high FRP.SL-157 series pre for thixotropic resin, toughness, high strength, thixotropic ... contain dichloroethane and toluene (benzene, toluene, xylene), etc. Solvent dilution. unsaturated polyester resin