Perma-Wrap Foam Insulation Tape is formulated from the highest quality elastomeric thermal insulation material. It is manufactured in accordance with selected specifications to meet the needs of today's air conditioning and refrigeration applications. It's closed-cell construction seals out air, retarding heat transfer and providing complete insulation. The acrylic laminate adhesive allows for greater service temperatures and a more secure bond that won't deteriorate with moisture. Perma-Wrap can be used on cold water pipes, chilled water lines, and refrigerant lines, to prevent sweating and condensation. It can also be used on hot water lines for better insulation against heat loss. Keeps cold lines cold and hot lines hot. Can be over-lapped or the edges can be butted. Service temperatures can be as low as -20 deg F with a high continuous temperature of 160 deg F and high intermittent temperatures of 220 deg F.