Shurtape PC-21F Flame Retardant Cloth Duct (Cargo Pit) Tape is a specialty grade duct tape used in the aerospace industry to seam, seal, and repair cargo compartment liners, and cover pins and rivets. Adheres well to steel, fiberglass, and plastic. Also used in the HVAC industry where federal, state and local building codes require a flame retardant cloth duct tape and in automotive and OEM markets. Shurtape PC 21F has excellent conformability; resists curling; is hand tearable; and will not support flame spread. Printed message says "Shurtape PC 21F F.A.R. 25.853."
Please note that Shurtape has informed us that PC-21F has now been discontinued and only a few rolls are left in inventory.