STI SSP Firestop Putty is a one-part, two stage, non-hardening compound designed to seal through-penetrations. Perfect for use with sealing cabling penetrations and outlet boxes. 9.00˝ x 9.00˝ x 3/16˝ (229 x 229 x 4.8 mm) pad
Size 9 Inch x 9 Inch x 3/16 Inch
Endothermic fillers absorb heat and release water
Highly adhesive formula Stays put. Allows movement.