Rigid, medium reactivity, Isophthalic/Neopentyl glycol unsaturated polyester resin. DEXATMRES 340 PAS is designed for the casting of non-gelcoated solid surface or densified marble. Solid surface products made with DEXATMRES 340 PAS exhibit excellent stain resistance and resistance to absorption by most household and medical organic fluids which makes it suitable for application in hygienic environments especially when compared with granite.