Expanded PTFE for Flange Valve Gasket Oil Seal

This yearwe moved our factory to a new big plant. And recently we produce ePTFE sheet by ourselves in our newworkshop.The ePTFE sheet we produced has the same quality compared with Gore but with much better price!!! Andwe can brand your own marks on the sheet!Now we are having a big sell about expanded PTFE sheet,the price is very very good. Welcome to your enquiry!P300 is a Universal sheet gasket material for most services. Seals rough and irregular surfaces. Made from biaxial oriented expanded PTFE sheeting that is laminated to the required thickness. Seals of up to 3000+psi can be achieved depending on the flange type & design and type of media being sealed. Chemically resistant over the Q-14 pH range. Specific gravity: 4 to 6. Suitable for temperatures to 600F.CONSTRUCTION
Our P300 gasket sheet is manufactured by expanding 100% virgin PTFE using a proprietary process that produces a uniform and highly fibrillated microstructure with equal tensile strength in all directions. The resulting product exhibits characteristics significantly different than conventional PTFE sheet. P300 is much softer and more flexible than regular PTFE sheet and thus conforms easily to irregular and rough surfaces. In addition, the material is easier to compress and minimizes creep and cold flow.APPLICATION / SERVICE
Our P300 is an all purpose gasket sheet that can replace all other types of PTFE sheet. It will seal all aggressive chemicals over the entire 0-14 pH range except for molten alkali metals and elemental fluorine. Made from 100% virgin PTFE, Our P300E not only resists chemical attack, but it will not contaminate or discolor end products. These industries currently use expanded PTFE sheet.
This expanded PTFE sheet is very popular in South America, New Zealand, Canada, USA. Free samples are available.If you need the samples,we can also provide to you to check our quality.
Temperature Limits:
Minimum(-268C)Maximum(315C)pH:0-14 (except molten alkali metals and elemental fluorine)ASTM Line Call OutASTM F 104ColorWhiteAvailable Sheet Sizes
Thicknesses:1/32", 1/16", 3/32", 1/8", 3/16", 1/4"Sheet Size60" x 60" TYPICAL PHYSICAL PROPERTIES EPTFEASTM
TEST METHODPHYSICAL PROPERTIESVALUESF 37Sealability ASTM Fuel A (isoctane):
Gasket load, 500 psi (3.5 N/mm 2 )
Internal Pressure, 9.8 psi (.7 bar)
Nitrogen:
Gasket Load, 500 psi (20.7N/mm 2 )0.0 ml/hr.16 ml/hrF 36Compressibility68%F 36Recovery12%F 38Creep Relaxation32% at 212°F
16% at 73°FF 495Ignition Loss30%F 146Weight Incease After
Five Hour Immersion ASTM Oil #1 @ +300°F (+150°C)
ASTM Fuel IRM 903 @ + 300°F (+150°C)
ASTM Fuel A @ + 70-85°F (+21-29°C)
ASTM Fuel B @ + 70-85°F (+21-29°C)-F 146Thickness Incease After
Five Hour Immersion ASTM Oil #1 @ +300°F (+150°C)
ASTM Fuel IRM 903 @ + 300°F (+150°C)
ASTM Fuel A @ + 70-85°F (+21-29°C)
ASTM Fuel B @ + 70-85°F (+21-29°C)-F 152Tensile Strength Across Grain1/16" thick - 1600 psi
(11 N/mm 2 )
1/16" thick - 1600 psi
(11 N/mm 2 )DIN 3535
Part 4Gas Permeability Nitrogen:
Internal pressure: 580 psi (40 bar)
Gasket Load: 4640 psi (32 N/mm 2 )-
Density:53 lb/ft 3
(0.85 gm/cc)