Hydrocal FGR 95 is a high-strength gypsum cements specially formulated for use with glass fiber for fabricating glass-reinforced architectural details. This product is an alpha hemihydrate gypsum-based materials, with low water requirements that result in high-strength, high-density pieces.Properties: Produces lightweight, thin-cast, fire-resistant architectural details Superior fabrication flexibility – from simple cornices to ornate capitals and medallions Effectively duplicates pieces formerly made of plaster, wood, concrete and stone Overcomes building fire code incompatibilities faced by many plastics – at roughly one-third the cost of filled polyesters Exceptionally quick set – 50-70 minutes with manual application Accepts most coatings and finishes..