Versatile: SSP Putty is perfect for metallic conduits, telephone, data or electrical power cable penetrations. A variety of sleeved and non-sleeved applications have been tested and proven providing the ultimate in installation versatility. Non-hardening and reusable, SSP Putty addresses the need for flexibility in "high traffic" data and communication penetrations. Excellent water resistance and tenacious adhesion provide a firestop system that's ready to go as soon as you install it. No drying or curing is required.