Tundra polyethylene pipe insulation is a flexible and easy-to-apply tubing product available in semi-slit and self-sealing styles.; ; Brand Name: Armacell Self Sealing: No Maximum Pipe Size: 3/4 in. Length: 6 ft. Material: Polyethylene Foam Product Type: Pipe Insulation Flexibility: Flexible Minimum Temperature: -90 °F Maximum Temperature: 210 Color: Black Wall Thickness: 3/4 R Value: 5.1 Semi-Slit: Yes Wall Thickness: 3/4 in.