20 oz. Tube STI SSP Firestop Putty 36 cu. in., Red | STI-SSP100

SpecSeal's Firestop Putty expands up to eight times its original size when exposed to high temperatures or flames. SpecSeal SSP firestop putty excels at sealing cabling penetrations. SSP putty is non-hardening and easily hand works around grouped cabling penetrations forming a re-enter able seal allowing for future work.

• Remains pliable and workable for the lifetime of the installation
• Two stage intumescent for aggressive expansion
• Endothermic fillers absorb heat & release water
• Excellent sound attenuation properties that reduces noise transmission
• Color: Red
• Excellent sound attenuation properties
• Reduces noise transmission