Use 3M Scotchfil Electrical Insulation Putty as a build-up compound on irregular surfaces like fittings and valves to create a smooth, waterproof taping surface. This electrical-grade tape is self-fusing and can be stretched to cover almost any shape. Our Electrical Insulation Putty insulates connections up to 600V and withstands temperatures of 32 to 176 degrees F (0 to 80 degrees C).

• Non-corrosive mastic adhesive in a flexible tape form
• Features good aging properties
• Insulates non-flat surfaces such as fittings and valves
• Black, mastic tape roll measures 1-1/2 in x 60 in x 125 mil
• Withstands temperatures of 32 to 176 degrees F (0 to 80 degrees C)