3M 4300 Series Urethane Foam Tape is a conformable, grey, low-density, open-cell foam with pressure-sensitive acrylic adhesive on one side. The adhesive is protected by a 0.003 inch (3 mil) thick tan, silicone treated paper liner and has a very soft, conformable low density foam which can help seal out air, dust and light when compressed 50%. Has high absorbency to trap moisture, dust, and contaminants. Application ideas include: recessed lighting, door, window and cabinet seals. It also can be used to help cushion, damp sound and absorb vibration in electronics such as printers, keyboards, computers, aircraft lights and automotive dash boards. The adhesive has excellent long-term aging, and ultimate high bond strength to a variety of surfaces as well as good temperature performance. Please note extra care should be taken when handling these delicate rolls of tape to avoid damaging tape.