Merco Tape Threadmaster PTFE Threadseal Tape
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Merco Threadmaster® Thread Seal Tape

From ensuring the seal on a hydraulic line cruising at 40,000 ft to keeping water off the basement floor, Merco Threadmaster® PTFE Threadseal Tape is offered in a grade to suit your project requirements. Full density Military  Spec to Big Box quality, you'll find the right tape here. Specify Merco Threadmaster® thread seal tape by name at your favorite supply house.

IMAGE

ITEM

ITEM

Thickness
in mils

SIZE

PACK

Merco Threadmaster PTFE Threadseal Tape, M55

M55

Standard Density Tape   0.90 g/cm3
Threadmaster® Premium Thread Seal Tape
THE Industry standard for over 40 years!

UL Listed
Mil SPEC T-27730A
Available Color - White

Threadmaster® Premium Thread Seal tape is a standard density domestic product made of PTFE used for applications requiring sealing properties of a premium grade thread sealant. Intended to be used for general purpose sealing in pipe threads, M55 is maintenance free, standard density, non-toxic and non-flammable.     Bulk on Core also available, please inquire: 40", 90", 260" & 520"
Product Datasheet                         MSDS for M55

3.5

1/4"x 260"
1/4"x 520"

200
200

1/2"x 260"
1/2"x 300"
1/2"x 520"
1/2"x 600"
1/2"x 1296"

400
400
300
300
200

3/4" x 260"
3/4" x 520"
3/4" x 1296"

400
300
200

1" x 260"
1" x 520"
1" x 1296"

400
300
200

Merco Threadmaster PTFE Threadseal Tape, M66

M66

High Density Tape           1.20 g/cm3
Threadmaster® Premium Thread Seal Tape
High Density - UL Listed - Mil SPEC T-27730A

Available Colors and Standard Uses:
White - Industrial; Yellow - Gas.

Threadmaster® Premium Thread Seal tape is a high density quality product
made PTFE suitable for commercial, industrial and laboratory use. M66 is maintenance free, non-toxic and non-flammable. Available in several colors for various applications.           
Product Datasheet                           MSDS for M66

3.5

1/4" x 260"
1/4" x 520"

1/2"x 260"
1/2"x 520"
"x 1296"

3/4" x 520"
3/4" x 1296"

1"x 520"
1"x 1296"

144
144

144
144
144

144
144

144
144

Merco Threadmaster  PTFE Threadseal Tape, M77

M77

Full Density Tape          1.55 g/cm3
Threadmaster® Premium Thread Seal Tape
Full Density - UL Listed
Mil Spec T-27730A & Mil Spec A-A-58092

Available Colors and Standard Uses:
White - Industrial; Yellow - Gas; Pink - Water;
Green - Oxygen; Gray - Stainless Steel.


Threadmaster® Premium  Thread Seal tape is a full density quality product made of PTFE and is suitable for the most stringent commercial, industrial and laboratory usage. M77 is maintenance free, non-toxic and non-flammable. Available in several colors for various applications.
Product Datasheet                             MSDS for M77

3.5

1/4"x 260"
1/4"x 520"

3/8" x 260
3/8" x 520"

1/2"x 260"
1/2"x 520"
" x 1296"

3/4 x 260"
3/4" x 520"

1" x 260"
1" x 520"

144
144

144
144

144
144
144

144
144

144
144

Merco Threadmaster PTFE Threadseal Tape, M77 with Nickel

M77Ni

Full Density Tape         Type N Nickel
Threadmaster® Premium Thread Seal Tape
Produced in the USA using virgin PTFE. Operating temperature range of -450 to +550 degrees Fahrenheit. Complies with Mil-T-27730A and A-A-58092.

Used for anti-galling in stainless steel pipes. Increases part life by reducing friction. Note: ALL Nickel PTFE is gray, but not all gray is Nickel!
Product Datasheet                        MSDS for M77Ni

3.5

1/4" x 260"

1/2"x 260"

3/4" x 260

1" x 260

 

Merco M22 PTFE Threadseal Tape

M22

PTFE Tape
Mil SPEC T-27730A

100% pure PTFE thread seal tape. A naturally lubricated tape that is clean to use and does not harden. For use in all threaded connections and fittings. Seals tight for professional results. Imported. Suitable for residential and most commercial installations

Imported from China                             MSDS for M22

2.75-3

1/2"x 260"
1/2"x 520"
1/2"x 1296"

3/4" x 520"
3/4" x 1296"

500
500
250

350
150

Merco M44 PTFE Threadseal Tape

M44

PTFE Tape
Mil SPEC T-27730A

100% pure PTFE thread seal tape. A naturally lubricated tape that is clean to use and does not harden. For use in all threaded connections and fittings Seals tight for professional results. Imported. Suitable for commercial installations.

Available in YELLOW, for Gas

Imported from China                              MSDS for M44

3-3.5

1/2"x 260"
1/2"x 520"
"x 1296"

3/4" x 260"
3/4" x 520"
3/4" x 1296"

1"x 520"
1"x 1296"

500
500
250

350
350
150

250
150

 

M 45

Higher Density PTFE Tape - 0.80 g/cm3
Threadmaster® Perseus™  PTFE Thread Seal
The NEW Industry Standard!

UL Listed, ISO 9002 Certified Manufacturing Facilities
Labeled both side w/ instructions, UPC, certifications.
Mil SPEC T-27730A

Available Color - Pure, Unadulterated White only, in Contractor-friendly sizing.
Compare The MONSTER Killer!
Product Data Sheet         MSDS for M45

3.5

1/2"x 1296"

3/4" x 1296"

1" x 1296"

 

40/200

40/160

40/160

 

 

M 47

Higher Density PTFE Tape - 1.30 g/cm3
Threadmaster®   PTFE Thread Seal

UL and CSA Listed, ISO 9002 Certified Manufacturing Facilities. Labeled both side w/ instructions, UPC, certifications.
Mil SPEC T-27730A
  and Mil Spec AA-58092
Available in White and Standard Colors
Sold strictly subject to availability
Specification Sheet

4.0

1/2"x 260"
1/2"x 520"

3/4" x 520"

500
500

350

sm_M22Open

M88

PTFE Tape
Mil SPEC T-27730A
Ok, it's white...
Imported threadseal tape

Subject to availability                         MSDS for M88

2.5

 

1/2"x 260"
1/2"x 520"

3/4" x 520"

 

500
500

350

Buyers, please note: Mil Spec T-27730A is NO LONGER current.   It has been replaced by Mil Spec A-A 58092

Ask about our Private Label Program!

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What is PTFE?, and What is Teflon® brand PTFE

Merco Tape PTFE Winding Machine

Polytetrafluoroethylene (PTFE) resin is in a class of paraffinic polymers that have some or all of the hydrogen replaced by fluoride.  The original PTFE resin was invented by DuPont in 1938 and called Teflon®. While all Teflon® is PTFE, not all PTFE is Teflon®. As stated in a letter from the DuPont Legal Department, DuPont does not license the manufacture of ANY Teflon® film into ANY PTFE Thread Seal Tape. In fact, DuPont maintains there is NO such thing as Teflon® Tape. Please see the link for this unusual marketing position and, a copy of the letter from their trade marks department is available on request.
    
PTFE is a completely fluorinated polymer manufactured by free radical polymerization of tetrafluoroethylene.  With a linear molecular structure of repeating –CF-CF2-units, PTFE is a crystalline polymer with a melting point of about 621oF (327oC).  Density is 2.13 to 2.19 g.  PTFE has exceptional resistance to chemicals.  Its dielectric constant (2.1) and loss factor are low and stable across wide temperature and frequency range.  PTFE has useful mechanical properties from cryogenic temperatures at 500oF (280oC) continuous service temperatures.  Its coefficient of friction is lower than almost any other material.  It also has a high oxygen level.

  Want more info?  Wikipedia's page.   For PTFE compatibility, see here: COMPATIBILITY

Teflon® is a registered trademark of DuPont Co.

Threadmaster® is a registered trademark of Merco Company

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P.O.Box 875, 201 Route 59  Hillburn, NY 10931
Phone:  845-357-3699 Fax: 845-357-3677

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All  statements, technical information and recommendations contained on this site, or  in any of our literature, are based upon research and experience which we  believe to be reliable, but such information or recommendations shall not  constitute a warrantee of suitability. Determination of final qualifications for  any particular use rests solely with the ultimate end user.

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