Yukalac 556 Series is a fast curing orthophtalic general resin type; thixotropic; pre-accelerated and non-waxed; very suitable for making FRP products with hand lay up and spray up molding processes. This type is very commonly used as a structural material in the manufacture of sanitary wares; bath tubs; building materials and other FRP products. This type is specially developed for hand lay up and spray up molding applications in hot weather.