A white PVC single sided foam tape that has a soft density construction. Despite its soft density this foam is closed cell, which makes it ideal for creating air and dust seals, typically on air conditioning units. 3154 has a pressure sensitive acrylic adhesive which offers excellent UV resistance, and will comfortably work at 70oc. A low compression set makes this single sided foam tape extremely resilient. This product maybe soft, but don't be fooled.....for a foam tape it's incredibly tough.