Fiber - Gaskets
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Fiber
AP Services, a product and service brand of Curtiss-Wright, is a manufacturer and integrated supplier of metal and fabricated gaskets, mechanical valve and pump packing, and a wide variety of specialized fluid sealing products for use in the power generation, chemical, pulp & paper, and refining industries.
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Models
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AP STYLE 439
AP Services, a product and service brand of Curtiss-Wright, has state-of-the-art gasket manufacturing technology using CNC driven water jet cutters. Style 439 is a composition cork and vegetable fiber glue-glycerin impregnated gasket sheet. This gasket material consists of a special base fiber containing 40% granulated cork particles by volume. Style 439 is saturated with a glue-glycerin-formaldehyde impregnate which makes the sheet impervious to oil, water, and gasoline. The combination of cork and vegetable fiber makes this an excellent gasket material for low-pressure applications. Style 439 is available in bulk sheet or precut gaskets.
| Maximum Temperature | 250 ºF |
| Maximum Pressure | 200 psi |
| Tensile | 1,000 psi |
| Compression | 40% - 55% |
| ASTM Callout | MIL-G-12803A - Indent. No. P3415A MIL-G-12803B & MIL-G-12803C - Indent. No. F328148M4 ASTM D 1170 and SAE J90 - Indent. No. P3415A ASTM F 104 and SAE J90 - Indent. No. F328148-E41-M4 |
| Thickness | .006”, .010”, .015”, .021”, .031”, .046”, .063”, .094”, .125”, .188”, .250” |
| Sheet Sizes | 36” width |
AP STYLE 440
AP Services, a product and service brand of Curtiss-Wright, has state-of-the-art gasket manufacturing technology using CNC driven water jet cutters. Style 440 is a combination of medium size cork particles and glue glycerin. It is an excellent medium compression composition cork that is fungus resistant. Cork works well on oils and gasoline, and is good for gaskets requiring low to medium torque loads such as fluid seals, gear boxes, oil seals, and valve covers.
Style 440 is available in sheets, bulk rolls (special order), and pre-cut gaskets.
| Maximum Temperature | 225 ºF |
| Density | 17 lb/ft |
| Tensile | 100 psi |
| Compression | 25-40% at 100 psi |
| Recovery | 75% minimum |
| ASTM Callout | HHC-576 B: TY I & II, CL2 ASTM F104 F219000 |
| Thickness | 1/32”, 1/16”, 3/32”, 1/8”, 3/16”, 1/4”, 3/8” |
| Sheet Sizes | 28” x 50” width |
AP STYLE 441
AP Services, a product and service brand of Curtiss-Wright, has state-of-the-art gasket manufacturing technology using CNC driven water jet cutters. Style 441 is manufactured from a blend of fine cork particles and neoprene, forming a smooth and compressible sheet. It has high tensile and tear resistance, and low compression set. Style 441 will take medium bolting pressure, has excellent heat resistance, and moderate swelling in oils and fuels.
Cork & Neoprene sheet works well on oils, gasoline, Freon, and most solvents. Style 441 is good for gaskets requiring low to medium torque loads such as fluid seals, gear boxes, oil seals, and valve covers.
Style 441 is available in sheets, bulk rolls (special order), and pre-cut gaskets.
| Property / Typical Results | |
|---|---|
| Temperature Range | -40 ºF to + 250 ºF |
| Durometer / Hardness | 70(+/- 5) Shore A |
| Density | 48 lbs./cu.ft. |
| Tensile | 250 psi |
| Compression | 25% to 40% |
| Recovery | 80% |
| Material Property Callout | ASTM F104 F226000 M2 T MIL-G-12803 P2255A AMS-C-6183 TYPE I or II, CL 2, Gr B |
| Thickness | 1/32”, 1/16”, 3/32”, 1/8”, 5/32”, 3/16”, 1/4”,5/16”, 3/8”, 1/2" |
| Sheet Sizes | 36” x 36” width |
AP STYLE 444
AP Services, a product and service brand of Curtiss-Wright, has state-of-the-art gasket manufacturing technology using CNC driven water jet cutters. Style 444 Oilrite is a superior grade of vegetable fiber sheet manufactured from a combination of plant fibers and chemical additive. Oilrite effectively resists the solvent action of petroleum products. It remains tough and durable through a long service life but is pliable and compressible for secure installation.
Style 444 is a resilient material for light bolt loading applications, and is recommended for oil, gasoline and most solvents.
Style 444 is available in sheets, bulk rolls, and pre-cut gaskets.
| Maximum Temperature | 250 ºF |
| Tensile | 2,000 psi |
| Compression | 25-40% maximum |
| Weight | 4.4 lb./sy. |
| ASTM Callout | ASTM D-1770 SAE J90, MIL 12803 A & B |
| Thickness | .006”, .010”, 1/64”, .021”, 1/32”, 1/16”, 1/8” |
| Sheet Sizes | 36” and 51” |
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