gaskets

Durlon® 8400

Durlon® 8400 Application: With an extremely wide pH application range, Durlon® 8400 can be used in process piping and equipment in chemical, pulp and paper, and other general industrial applications. A unique high-performance compressed sheet Durlon® 8400 is an excellent gasket material for use in steam, mild caustics and acids in class 150 and 600 services.

Durlon® 8400 Composition: Durlon® 8400 contains high temperature phenolic fibers and minerals combined with high-grade nitrile NBR 
rubber. It exhibits higher temperature limits than aramid based materials and the handling and cutting characteristics are greatly improved over carbon and glass fibers products.

Durlon® 8400 has a pH application range of 2 to 13 at room temperature, the widest range of any compressed sheet gasket material produced today. 
This makes Durlon® 8400 especially suitable in pulp and paper, and chemical plant applications.

Durlon® 8500

Durlon® 8500 Application: This is our workhorse material, excellent in steam, natural gas, soybean processing and with new generation refrigerants. A high quality general service gasket material for use in a wide range of services in pulp and paper, food, beverage, pharmaceutical, chemical, refinery, gas pipeline, and general industry. Durlon® 8500 exhibits good compressibility and recovery, excellent sealability, flexibility, and cutting characteristics.

Durlon® 8500 Composition: Durlon® 8500 contains high-strength aramid and inorganic fibers bonded with high grade Nitrile (NBR) rubber.

Durlon® 8600

Durlon® 8600 Application: A quality compressed sheet gasket material for use in process industries including pulp and paper, power, petrochemical 
as well as general industry where a “white” gasket material is often required such as food and beverage, pharmaceutical and plastics. For services such as water, steam, air, inert gases, alcohols, dilute acids and alkalis ammonia and many other liquids and gases. Exhibits good compressibility and recovery, sealability, flexibility and cutting characteristics. A release agent on both sides ensures good anti-stick properties.

Durlon® 8600 Composition: Durlon® 8600 contains high strength aramid and inorganic fibers bonded with high grade SBR rubber.

Durlon® 8700

Durlon® 8700 Application: Durlon® 8700 is a high performance gasket material for use in processes requiring a neoprene (CR) bonded sheet such as refrigeration services. This product has excellent resistance to ozone, oils, non-aromatic solvents and many refrigerants.

Durlon® 8700 Composition: Durlon® 8700 contains high-strength aramid and inorganic fibers bonded with high grade neoprene (CR) rubber.

Durlon® 9000/9000N

Durlon® 9000/9000N Application: Durlon® 9000/9000N is used extensively in chemical, pulp and paper, food and beverage, and the railroad tankcar 
industries. It has been tested and approved for liquid chlorine, caustics, liquid oxygen, and high purity applications in the pharmaceutical industry (9000N, blood components manufacturing). Durlon® 9000 and 9000N are designed for applications where resistance to highly aggressive chemicals is required. Available in unpigmented white as style 9000N. Both styles 9000 and 9000N, (including branding) conform to FDA requirements.

Durlon® 9000 has been proven through the “Test Protocol” of the Chlorine Institute and is listed as an acceptable gasket material for Dry Chlorine service (both liquid and gaseous) in Pamphlet 95, Edition 3 of the Chlorine Institute. Additionally, Durlon® 9000 was independently tested and approved for Caustics service be a major chemical/chlorine manufacturer. Unlike generic glass fiber filled PTFE, the shape of the fillers used in Durlon® 9000 do not allow wicking which can cause corrosion on flange faces.

Durlon® 9000/9000N has been independently tested and certified (BAM) for Oxygen service at pressures up to 585 psi (40 bar) and temperatures up to 392°F (200°C), and for service in liquid oxygen. Gaskets for oxygen service can be supplied from distributor stocks, providing proper cleaning procedures for oxygen service are followed before installation.

Durlon® 9000 Composition: Various shapes of inorganic fillers have been homogeneously blended with pure PTFE resins to give Durlon® 9000 its physical and mechanical properties. It is suitable for use in steel flanges and will not exhibit the cold flow problems associated with virgin PTFE or the hardness problems of some other filled PTFE products. It cuts easily and separates cleanly from flanges after use.

Durlon® 9200W Barium Sulfate Filler with Pure PTFE Resins Filled PTFE Gasket Material

Durlon® 9200W Application: Durlon® 9200W is a filled PTFE gasket material designed for use in aggressive chemicals including caustics, hydrogen peroxide, sodium hypochlorite, nitric acid, liquors and digester in pulp and paper service. Applications in the chemical, pharmaceutical and plastics industries include butadiene, hydrofluoric acid, vinyl chloride, methyl methacrylates, and styrene. It is also used extensively in railroad tankcar applications and can be used where resistance to highly aggressive chemicals is required.

Durlon® 9200W is also used for hydrofluoric acid service at moderate concentrations and temperatures where barium sulfate filled PTFE gasket material is specified within a temperature range of -350°F to 520°F (-212°C to 271°C), or with pressure up to 1500 psi (10.3 MPa). Style 9200W (granite white, branded) conforms to FDA requirements.

Durlon® 9200W Composition: Barium sulfate fillers are homogeneously blended with pure PTFE resins to give Durlon® 9200W its physical and mechanical properties. Independent testing has shown the fillers in Durlon® 9200W to be more evenly dispersed than filled PTFE with layered construction. The result is more consistent physical and mechanical properties without the voids, separation and chemical compatibility problems found in layered filled PTFE. It is suitable for use in steel flanges, will no exhibit the cold flow problems associated with virgin or generic skived PTFE or the hardness problems of some other filled PTFE products. It has excellent sealability, cuts easily and separates cleanly from flanges after use.

Durlon® 9400
Carbon Filler with Pure PTFE Resins
Filled PTFE Gasket Material
ASTM F104: F452111-A9B5E11M60

Durlon® 9400 Application: Durlon® 9400 gasket material is a high performance filled PTFE designed for use in piping and equipment in chemical, pharmaceutical, food and other general industrial applications where resistance to highly aggressive chemicals (including hydrofluoric acid) is required. Style 9400 conforms to FDA requirements.

It can also be used as gasketing for anhydrous hydrogen fluoride (AHF) in railroad tankers and in plants as a material of construction where barium sulfate filled PTFE may not prove suitable.

Durlon® 9400 Compostion: Durlon® 9400 is made of pure PTFE resins combined with carbon fillers homogeneously dispersed throughout the compound. Durlon® 9400 does not exhibit the cold flow problems associated with virgin PTFE yet has excellent sealability, flexibility, non-sticking and cutting characteristics. Durlon® 9400 also demonstrates good electrical conducting properties.

Durlon® 9600

Durlon® 9600 Application: Durlon® 9600 is an EXPANDED PTFE gasket material designed for use in process piping and equipment in chemical, pulp and paper, food and beverage, and other general industrial applications where resistance to highly aggressive chemicals is required.

Durlon® 9600 is suitable for use in steel flanges and flanges with irregular surfaces. Durlon® 9600 (including branding) conforms to FDA requirements.

Durlon® 9600 Composition: Durlon® 9600 is made with only pure PTFE resins. It is suitable for use in steel flanges, and flanges where a highly compressible gasket is required. Durlon® 9600 is also suitable for sealing flanges with irregular surfaces. It will not exhibit the cold flow problems associated with virgin PTFE or the hardness problems of some other filled PTFE products. It has excellent sealability, cuts easily and separates cleanly from the flanges after use.