PTFE

For food, pharmaceutical and hazardous chemical services.

PTFE (Polytetrafluoroethylene) is now a very common material used in gasketing applications for arduous chemical service. Materials offered by us include virgin grades but more commonly biaxially structured with various fillers to comply with the required chemical and creep resistance. The unique structure of filled PTFE ensures high levels of seal integrity

PTFE can be supplied in both soft cut and machined pieces.

PTFE Envelope Gaskets are also manufactured in house. These are used particularly where the gasket is coming into contact with very aggressive fluid media or where cleanliness and hygiene are essential. A PTFE Insert is added to a compressible outer gasket usually made from non asbestos fibre or rubber. This combines virgin PTFE’s inertness with the compressibility of the rubber or fibre material.

We also stock expanded and Filled PTFE in both sheet and roll form including, Gylon®, Sigma®, Top-Chem and Gore™ materials together with PTFE coated fabric.

Munsch/PTM additionally supply PTFE Based Abrasion Resistant Coatings. An abrasion and wear resistant coating functions by reducing the friction caused by one component rubbing against another. PTFE (or Polytetrafluoroethylene) provides a low coefficient of friction that prevents the scoring, galling, or sticking of mating components.

PTFE

Please click on the links below to be directed to data sheets on our materials which you can download.

The compressive strength at a certain predetermined compression value is one of the most significant mechanical characteristics of PTFE, in a wide range of service temperatures.
Expanded PTFE is the material of choice for a number of industries and media including oils, petrol, chemical, gas, food and pharmaceutical.
Flexibility strength, plastic memory and hardness, are additional characteristics of PTFE products and with this grade being etched on one side, means it can be bonded.
Expanded PTFE is the material of choice for a number of industries and media including oils, petrol, chemical, gas, food and pharmaceutical.
With this grade being 25% Glass Fibre filled it exhibits enhanced wear resistance and enhanced chemical resistance (except for alkali and hydrofluoric acid) over other PTFE grades.
Exceptionally resistant to creep, cold flow and aggressive media, this 100 % ePTFE gasket sheet reliably seals steel piping and equipment.
The surface coating leads to outstanding resistance to inadvertent chemical splashes and resists contamination by aqueous and oily fluids.
PTFE Machined Parts
We are able to manufacture customised products to the exact specifications you have requested in accordance with your drawings. Adhering to any additional requirements, such as, material, dimensions and tolerances.
The GYLON® Style 3500 is a high performance, silica filled PTFE sheet material designed for use with strong acids, solvents, hydrocarbons, and other aggressive media.
The first choice for universal applications in the chemical and petrochemical industries. The combination of high pressure/temperature (P x T) and minimal cold flow far exceeds the performance of conventional PTFE.
The GYLON® Style 3504 gasket is made of PTFE with aluminosilicate microspheres. It is designed for use in moderate concentrations of acids, caustics, hydrocarbons, refrigerants, and more.
The GYLON® Style 3510 is a high performance, barium sulfate filled PTFE gasketing material designed for use in strong caustics and toxic chemicals, such as chlorine, ammonia, and phosgene.
This highly compressible, microcelluar PTFE gasketing material is designed to compress and conform to irregular or damaged surfaces, making it suitable for flanges that generate lower compressive stresses, such lined flanges and equipment.
Style 3545 is a highly compressible microcellular PTFE with a rigid PTFE core for improved handlability. It is designed to compress and conform to irregular or damaged surfaces, making it suitable for flanges that generate lower compressive stresses, such and glass-lined flanges and equipment.
SIGMA® 500 is a high performance biaxially orientated sheet sealing material containing PTFE and hollow glass microspheres.
SIGMA® 511 is a high performance biaxially orientated sheet sealing material containing PTFE with silica filler.
SIGMA® 533 is a high performance biaxially orientated sheet sealing material containing PTFE with barium sulphate (barytes) filler.
SIGMA® 588 is a high performance biaxially oriented PTFE sheet sealing material with enhanced handling & low stress sealing characteristics
Premium grade, heavy-duty PTFE gasket suitable for a wide range of applications within the chemical and petrochemical industries. The only PTFE based gasket material on the market to hold fire safe approval.
Highly compressible, modified PTFE material with outstanding chemical resistance. Ideal for applications where bolt load is limited or where flanges are delicate e.g. glass-lined equipment
Modified PTFE material with excellent chemical resistance and good mechanical properties. Suitable for a wide range of applications with the exception of strong alkaline conditions.
Modified PTFE material with excellent chemical resistance and good mechanical properties. Suitable for a wide range of applications in the chemical, pharmaceutical and food industries including strong alkaline conditions.

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