Simplify your next Sure-Weld TPO installation with Carlisle 6 Inch Pressure Sensitive RUSS Strip. Carlisle’s PS RUSS is part of the Certified Fabricated Accessory (CFA) program. Certified Fabricated Accessories are the only factory-fabricated TPO accessories that meet the stringent quality tolerances required to be included in a Carlisle warranted roofing system. PS RUSS is a nominal 45-mil (1.14mm) thick reinforced TPO membrane strip with a nominal 35-mil (.89mm) thick cured TPO splice tape adhesive laminated along one or both edges. The reinforced TPO membrane is either 6” (150mm) or 10”(250mm) wide while the adhesive strips are 3”(75mm) wide.