BT-2505 is a medium density closed-cell PVC foam. It is coated on both sides with an aggressive, pressure sensitive adhesive, A3, and 84# polycoated two side, brown kraft liner. It has the ability to make long life seals against air, moisture, light and dust penetration. It completely seals out air, moisture, light and dust when compressed 30% or more. It is inherently resistant to fire, ultraviolet rays, most chemicals, and solvents.
Technical Data Sheet: