Polyken 226 NUCLEAR GRADE DUCT TAPE - HIGH PERFORMANCE Nuclear grade cloth duct tape. Applications Multiple uses in power plants and ships. For use with nickel-based alloys and austenitic stainless steels. Holding dosimeters, sealing insulation, color coding, wrapping pipe ends, sealing duct work, packaging. Features & Benefits Polyethylene coated cloth tape meeting nuclear regulations. Durable, resists tearing. High conformability. Superior tack - adheres tightly to many surfaces. Can be used outdoors. Meets NRC and ANSI regulations.