3M™ Fire Barrier Putty Sleeve Kits are designed to help prevent the passage of fire and smoke in new or existing cable penetrations through walls or floors. These kits are tested up to 4 hours for fire-rated through penetration systems (in accordance with ASTM E814). No gasket is required with this

3M 7000145570 3M FIRE BARRIER PUTTY SLEEVE KITS ARE DESIGNED TO HELP PREVENT THE PASSAGE OF FIRE AND SMOKE IN NEW OR EXISTING CABLE PENETRATIONS THROUGH WALLS OR FLOORS. THESE KITS ARE TESTED UP TO 4 HOURS FOR FIRE-RATED THROUGH PENETRATION SYSTEMS (IN ACCORDANCE WITH ASTM E814). NO GASKET IS REQUIRED WITH THIS PRODUCT AND IT ALLOWS FOR BOTH NEW AND RETROFIT DATA AND TELECOM CABLE FIRESTOP INSTALLATIONS.