PolyFiber II (5 gal)
Used to thicken polyurethane rubbers and plastics for making brushed molds and shells. Turns a pourable mold rubber such as Poly 74-30 into a brushable system with any level of thickening desired - thin for a face coat or thicker for subsequent coats. Also makes a pourable plastic such as Poly 1512X into a highly versatile, brushable consistency for making lightweight mother molds or mold shells. Thickened plastics can be used to create thin, lightweight, laid-up castings.