3M Fire Barrier Plank PK39

3M Fire Barrier Plank PK39 Firestop Foam for Electrical and Lighting Solutions The 3M Fire Barrier Plank PK39 is a maroon-colored, pre-formed intumescent firestop foam designed for medium to large openings in wall and floor through-penetrations. It serves as a reliable firestop solution that maintains a tight seal against smoke and flame during a fire, making it suitable for applications involving electrical distributors, lighting solutions, wire and cable penetrations, and switchgear installations. The product is easy to install, repairable, reusable, and paintable with primer, providing efficient labor savings in firestop system installations. Specifications Manufacturer: 3M Manufacturer Part #: PK39 Product Weight: 19.0 lbs (8.6 kg) Dimensions: 2-3/8 in. x 5-1/8 in. x 39-3/8 in. (60 mm x 130 mm x 1000 mm) Color: Maroon Material Composition: Polyurethane Foam (80-95%) and Graphite (5-20%) Surface Burning Characteristics: Flame Spread 5, Smoke Development 250 (ASTM E 84) Air Leakage: Less than 1 CFM/sq. ft. at 400°F and ambient (UL 1479 Section 6) VOC Content: 0 g/l (Less H2O & Exempt Solvents) Non-reactive and exempt from OSHA hazard classification Features Re-enterable and repairable firestop foam plank Fully reusable, reducing replacement costs Easy to install, saving time and labor on site Paintable with primer to match surrounding surfaces No cure time required, enabling immediate use Tested to ASTM E814/UL 1479, ASTM E84/UL 273, ASTM E90, and ASTM E413 standards Complies with building codes including IBC, IRC, IFC, IPC, IMC, NFPA 5000, NEC (NFPA 70), NFPA 101, and NBCC Suitable for sealing blank openings, metal pipes, cables, cable trays, insulated pipes, combination penetrations, and open conduits Designed for use in concrete floor/wall and gypsum wallboard assemblies Downloads & Links 3M™ Fire Barrier Block, Plugs, Plank Installation and Fire Test  (MP4, 355.4MB) 3M™ Fire Barrier Maroon Block, Plug and Plank  (PDF) 3M Fire Protection Products Specifiers Guide  (PDF, 106.3MB) 3M™ Fire Barrier Blocks Plugs Planks Technical Data Sheet  (PDF, 77.5KB) 3M™ Fire Barrier Blocks Plugs Planks Installation Guide  (PDF, 252.1KB) 3M™ Fire Barrier Blocks Plugs Planks Flyer  (PDF, 2.3MB)