Polyester Masking Tape, 3" Core, 1 mil Thick, 72 yd Length, 1/4" Width, Blue Blue powder coating tapes, also known as anodizing tapes, are made of 1 mil thick polyester film and 2 mil thick silicone adhesive They can be removed cleanly without leaving an adhesive residue They can withstand temperatures of up to 400 degree F Applicable for electronic assembly, powder coating, anodizing, wet coating operations and masking application Measures 72 yds length by 1/4" width by 1 mil thick