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Blue Monster is not too thick and not too thin. It was developed by Mill-Rose in response to the demand for a higher-quality PTFE sealing tape that is easier to apply. Blue Monster is rugged, not flimsy like most thread seal tapes on the market. Blue Monster has not been stretched during the manufacturing process, so it is thicker and creates a more effective seal with less tape, and no need for pipe dope. Blue Monster thread sealing tape is manufactured from PTFE resin, a polymer consisting of recurring tetrafluoroethylene monomers whose formula is (CF2-CF2)n. It is inert and compatible with a very wide range of materials. Use Blue Monster on threads made from galvanized steel, iron, brass, copper, aluminum, stainless steel, polyethylene, polypropylene, PVC, CPVC, ABS, fiberglass and more.

Do not use Mill-Rose Blue Monster Thread Sealing Tape on oxygen lines!


Item #

Item Name


N/A 396286 70885 N/A Blue Monster Thread Tape 1/2" 1429" $4.34
N/A 424081 70886 N/A Blue Monster Thread Tape 3/4" 1429" $5.92
N/A 454021 70887 N/A Blue Monster Thread Tape 1" 1429" $8.80