CAFCO FIBER-PATCH / ISOLATEK Type P is a versatile, hand applied fire resistive material designed for patching damaged CAFCO / ISOLATEK dry-mix and wet-mix Spray-Applied Fire Resistive Materials (SFRMs). CAFCO FIBER-PATCH / ISOLATEK Type P has excellent bonding characteristics and easily adheres to CAFCO / ISOLATEK dry-mix and wet-mix SFRMs, and galvanized or bare steel surfaces.