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Fiber Gasket Materials

Felt - Vellumoid Vegetable Fiber - Ceramic Paper

NE 201 - F1 Felt

Felt Fiber Gasket Sheets
Uses of felt include home appliances, electric motors, seals and bearings, polishing and wiping, automotive components, wicking, power tools and duplicating machines and more.
Combined Choir. & Water sol. (max.) 3%
Tensile Range (psi) (min.) 600
Wool Content (min.) 95%
Color Off-White
Acid Resistance Good
Alkalie Resistance (dil) Fair
Solvent Resistance Excellent
Compression Rec 99%
Temperature Range (°F) -80° to +200°
Thermal Expansion 0
Effect of sunlight and oxidation None

NE 602 - Vellumoid Vegetable Fiber 505

Fiber Sheets
Consists of a cellulose fiber base which has been impregnated with a protein and glycerine binder. Three outstanding properties: Exceptionally good sealing properties. Highly conformable to compensate for distortion in flanges. Chemically indert in the presence of petroleum lubricating oils, automotive gasoline, fuel oils, and many organic solvents. Contains an antimicrobal compound to resist fungus organisms.
Compressability (@1000 psi) 25% to 40%
Tensile Range (psi) (min.) 2000
Recovery (min.) 40%
Temperature (°F) (max.) +250°

NE 603 - Vellumtherm (Beater Addition)

Used extensively in automotive applications. Contains a unique blend of ingredients including aramid fiber with a cured nitrile binder. Offers excellent sealing and a high degree of torque retention under flange loads. Surface is specially treated to reduce adhesion to flanges.
Complies with ASTM F 104-87
Compressability (@5000 psi load) 11% to 27%
Recovery (min.) 35%
Tensile Strength (psi) (min.) 1100
Oil Resistance Excellent
Temperature Tolerances (°F) to +400°

NE 604 - Ceramic Paper 550

Ceramic Paper Gasket Sheets
Made from unwashed high purity ceramic fiber. Higher density and binders give performance properties ideal for most refractory type applications. Excellent chemical stability resisting attack from most corrosive agents. Exceptions are hydrofluoric and phosphoric acids and concentrated alkalies. Good dialectic strength.
Durometer Range (Shore A) 20 to 95
Tensile Range (psi) 200 to 3000
Resilience Rebound Good
Abrasion Resistance Excellent
Oil Resistance Good to Excellent
Temperature Tolerances (°F) -30° to +250°

NE 902 - NBR Carbon Fiber Sheet

Manufactured from carbon fibers and graphite, bonded with nitrile rubber. This sheet is very versatile and therefore enables plants to use only one gasket material and avoids the confusion of multiple materials and sheets. Suitable for sealing hot oils, fuels, coolants, solvents, gasses, vater and steam.
Maximum Temperature (°F) 900°
Maximum Pressure (psi) 2300
P x T max 700,000
Sealability @2000 psi
gasket load (ml/hr leakage)
Tensile Strength across grain (psi) 1900

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