SikaBiresin AP007 (Formerly APF7), is a styrene-free, very fast setting, polyester-based industrial filler paste. It is specifically formulated for filling, fairing, and repair applications and can be used in high service temperature applications up to 400°F (204°C). It bonds readily to itself or other substrates, such as FRP/SMC, high temperature epoxy molds, aluminum, steel, cast iron, and urethane foam parts.