Mas Fast Hardener is a rapid ambient temperature hardener for use with MAS Epoxy Resin. Fast Hardener can be used as an accelerator for MAS Slow or Medium Hardeners when customized cure times are required. Appropriate applications of Fast Hardener/Resin formulas include hardware bonding, spot filling, and fairing. The superior bonding strength of Fast Hardener/Resin formulas is ideal for high strength secondary bonding applications such as structural tabbing and repair laminations. The rapid cure time of Fast Hardener allows overnight curing in low temperature conditions. The low viscosity of Fast Hardener/Resin formula allows for fast wet-out of heavy reinforcing fabrics often used in repair applications.