Gylon gasket groupMidwest Sealing Products is an authorized fabricator and distributor of Garlock Sealing Technologies Gylon materials.

Gylon is one of the most popular flat PTFE gasketing materials available, and comes in a wide range of styles. All Gylon styles have the following characteristics:

  • Color-coded material for quick and easy identification of style
  • Intended to stand up against severe chemical service
  • Excellent sealability, leading to a reduction in media loss
  • Reduced creep

Creep is one of the common problems that has to be dealt with when using PTFE materials. However, in the case of Gylon, those concerns are significantly decreased. The method in which Gylon is produced works to limit the creep relaxation problems that you may have dealt with when using other products.

Some of the popular styles of Gylon are as follows:

Style 3500 – Fawn GYLON® – PTFE with silica filler

Used in the following applications:

  • Strong Acids
  • Hydrocarbons
  • Solvents
  • Water
  • Steam
  • Cryogenics, hydrogen peroxide
  • Chlorine

Gylon 3500

Flammability: Will Not Burn
Bacterial Growth: Will Not Support
Meets Specifications: ABS (American Bureau of Shipping), FDA (Food and Drug Administration) and USP (US Pharmacopia)

Style 3504 – Blue Gylon® – PTFE Gasketing with aluminosilicate micorspheres

Used in the following applications:

  • Moderate concentrations of acids and some caustics
  • Hydrocarbons
  • Solvents
  • Water
  • Refrigerants
  • Cryogenics, hydrogen peroxide

Gylon 3504

Flammability: Will Not Burn
Bacterial Growth: Will Not Support
Meets Specifications: ABS (American Bureau of Shipping), FDA (Food and Drug Administration) and USP (US Pharmacopia)

Style 3505 – Blue Gylon® – PTFE with aluminosilicate microspheres (used in oxygen services)

Used in the following applications:

  • Potable drinking water
  • Hydrocarbons
  • Solvents
  • Moderate concentrations of acids and some caustics
  • Refrigerants
  • Cryogenics, hydrogen peroxide

Gylon 3505

Flammability: Will Not Burn
Bacterial Growth: Will Not Support
Meets Specifications: NSF (National Sanitation Foundation), FDA (Food and Drug Administration) and USP Class VI (US Pharmacopia)

Style 3510 – Off White GYLON® – PTFE with barium sulfate filler

Used in the following applications:

  • Strong caustics
  • Moderate acids
  • Chlorine
  • Gases
  • Water
  • Steam
  • Hydrocarbons
  • Cryogenics, hydrogen peroxide

Gylon 3510

Flammability: Will Not Burn
Bacterial Growth: Will Not Support
Meets Specifications: ABS (American Bureau of Shipping), FDA (Food and Drug Administration)

Style 3530 – Gylon® – PTFE with graphite filler

Used in the following applications:

  • Monomer service
  • Cryogenics
  • Highly concentrated hydrofluoric acid
  • Volatile hazardous air pollutants (VHAP)

Gylon 3530

Flammability: Will Not Burn
Bacterial Growth: Will Not Support

Style 3545 – Gylon® – Microcellular PTFE Gasketing

Used in the following applications:

  • Strong caustics
  • Strong acids
  • Hydrocarbons
  • Chlorine
  • Cryogenics
  • Glasslined equipment

Gylon 3545

Flammability: Will Not Burn
Bacterial Growth: Will Not Support
Meets Specifications: FDA (Food and Drug Administration)

Whether you already know exactly which Gylon style you are going to use or you need help picking the right one for your application, contact Midwest Sealing Products, Inc. today to get started.

*Disclaimer: Midwest Sealing Products, Inc. believes that the information provided is a true and accurate description of the products listed. However, it is the responsibility of the user to test the product to determine performance, efficacy and safety.