QuietPutty® is a moldable soundproofing putty designed to maintain the performance of acoustically rated walls with penetrations such as electrical outlets, HVAC ducts, water hookups, and cables.
QuietPutty BenefitsIdeal areas of application include electrical outlets boxes, phone outlet boxes, electrical switches, and plumbing hookups.
QuietPutty is a moldable putty, so no tools are required for application. Simply adhere the putty manually to back of outlet box or target area.

QuietPutty Three-Part Specification
QuietPutty QP-380 Application Note
QuietPutty UL 1479 Fire Tests of Through-penetration Fire Stops