STI SSP4SSTI 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.
STI SSP9SSTI 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.