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Blue Monster PTFE Thread Tape - 1/2" x 1,429"

Score: 4.83. Votes: 29


  • Composition: 99.6% PTFE < 0.4%
  • Quantity: 1 Roll
  • Pigment Color: Blue
  • Width: 1/2"
  • Length: 1429"
  • Thickness: 0.0035" +/- 10%
  • Density: 0.8g/cm3
  • Elongation: >100%
  • Tensile Strength: 15N / mm2
  • $3.25
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1/2" x 1,429" Blue Monster PTFE Thread Tape

Blue Monster Tape is a thicker, denser, general-purpose thread seal tape that comes in a 1,429" roll. That's a Monster Roll. That’s 5 times more tape than conventional rolls of low-density thin tapes. Fewer wraps are necessary to affect a leak-proof seal and it applies easily. No waste and no re-taping make sealing joints a breeze.

What is PTFE you ask?

In short PTFE is simply Teflon

PTFE Long Description:

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.

Blue Monster Tape can be used on pipe carrying these:

  • Acids, concentrated
    (see precautions) and Acids, dilute
  • Alcohols, Gasohol
  • Aliphatic solvents, Aromatic solvents, Chlorinated solvents
  • Ammonia, liquid
  • Caustics, concentrated
    (see precautions)
  • Compressed air, Steam, Water
  • Cutting oils
  • Diesel fuel oil
  • Ethylene glycol, Glycerine
  • Fatty acids
  • Heating oils, Kerosene
  • Hydraulic fluids, Hydraulic oils
  • Hydrogen, gaseous and liquid, Inert gases, gaseous and liquid
  • Jet fuel
  • Ketones, Petroleum solvents
  • Liquid Petroleum Gas, Natural gas
  • Mineral oils, Vegetable oils
  • Nitrogen, gaseous and liquid
  • Soap, liquid


Composition: 99.6% PTFE < 0.4%
Pigment Color: Blue
Length: 1429"
Thickness: 0.0035" +/- 10%
Density: 0.8g/cm3
Elongation: >100%
Tensile Strength: 15N / mm2

Pressure rating:

Mill-Rose Blue Monster Thread Sealing Tape has been used to seal fittings carrying water and oil at pressures up to 10,000 PSI or 69,000kPa

Note: Pressure ratings are relative to the quality and torque of the fittings and the amount of tape used.

Temperature Range: -450°F to +500°F (-268°C to +260°C) PTFE is completely stable up to +500o F or +260°C. Decomposition is slow up to 750°F or 400°C. Although decomposition will occur on contact with naked flames.

Fittings above 1½" (38mm) diameter.

  1. Use 3/4" (19mm) wide tape for fittings up to 2" (51mm) in diameter. Use 1" (25mm) wide tape for fittings larger than 2" (51mm) in diameter.
  2. Follow the directions under "Instructions".


  • Compatible with a broad range of gases and liquids
  • Compatible with a broad range of piping materials
    Will not harden or crack on the joints
  • Effective across a broad range of temperatures and pressures
  • Acts as a thread lubricant and anti-seize
  • Prevents electrolytic corrosion of threads
  • No curing time
  • Unlimited shelf life
  • Non-flammable
  • Non-toxic
  • Clean
  • Blue Color


Blue Monster Thread Tape MSDS

Customer reviews
Average rating:

Score: 4.83. Votes: 29
Rating of votes (29)
27 customers
1 customers
0 customers
0 customers
1 customers
  • Jim Kendall
    Aug 8, 2018, 03:47
    This product might work for low pressure applications but doesn't work over 5 psi. Normal household water company pressure is about 60 psi. If you want to waste 35 bucks then buy a roll of Blue Monster. It doesn't hold much pressure. The video is a farce. Someone off camera turned off the pressure when the tape was wrapped. C'mon be honest, this product doesn't work much at all. ***Note from This has never costs $35. I personally use this at my own home. My water pressure is at 80 psi in the house and 100 psi out of my yard hydrant. I have never had any issues with any connection I have used this on.
  • Anonymous reviewer
    May 14, 2015, 13:14
    Good Product, Excellent Price 
  • Anonymous reviewer
    May 14, 2015, 13:14
    Fantastic product Super fast shipping buy with confidence. Great Price 
  • Anonymous reviewer
    May 14, 2015, 13:12
    Smooth Transaction, As described. A+ 
  • Anonymous reviewer
    May 14, 2015, 13:12
    Thank you, Fast Shipping