STI Firestop Spec Seal SSP28 Intumescent Putty Bar (24 cu. in., 0.4 liter)

STI Firestop

SpecSeal SSP Firestop Putty excels at sealing cabling penetrations and outlet boxes. SSP Putty is non-hardening and easily hand works around grouped cabling penetrations forming a re-enterable seal allowing for future work. When applied with outlet boxes, SSP Putty easily works into voids and seams forming a continuous seal against fire and the products of combustion.

STI Firestop is manufactured by Specified Technologies Incorporated, which is a leading expert in developing innovative fire protection systems that help stop the spread of fire, smoke, toxic fumes, and hot gases.

• Available in tubes of preformed pads
• Remains pliable and workable for the lifetime of the installation
• Acoustically tested
• Will not harden overtime!