Gold Member Since 2011
Audited Supplier
Ningbo Sunwell Sealing Materials Co., Ltd.

PTFE Sheet, Modified PTFE, PTFE manufacturer / supplier in China, offering Modified PTFE Sheet, Nomex Fiber Packing with Silicone Rubber Core (SUNWELL P305), Reinforced Graphite Gasket Sheet with Ss Tang Insert and so on.

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Modified PTFE Sheet

FOB Price: Get Latest Price
Min. Order: 2 Pieces
Port: Ningbo, China
Production Capacity: 320ton/Month
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: SUNWELL B4000Range
  • Function: Fixed Sealing, Rotary Sealing, Shaft Sealing, Dust Prevention Sealing
  • Shape (For Gasket): Compression Sheets
  • Standard: Standard, Nonstandard
  • Trademark: Sunwell
  • Specification: according your request
  • Style: Compression Sheets
  • Application: Junction Surface Seal, Equipment Seal, Flange Seal
  • Material: Mica
  • Certificate: Dnv ISO9001,SGS
  • Transport Package: Wooden Case
  • Origin: Ningbo
Product Description

SUNWELL expanded PTFE sheet as similar as GORE, KLINGER, TEADIT,etc.
It is a universal sheet gasket material for most services, seals rough and irregular surfaces.
Modified PTFE Sheet

SUNWELL Expanded PTFE Sheet made from biaxial oriented expanded PTFE sheeting that is laminated to the required thickness. Expanded 100% virgin PTFE using a proprietary process that products a uniform and highly frbrillated microstructure with equal tensile strength in all directions.

Typical Application
> Distilleries, petrochemical, food and beverage, pharmaceutical, general chemical, power generation, iron and steel manufacturing, pulp and paper, etc.

Prime Features
> Best chemical corrosion resistance
> PH range 0~14
> Not only resists chemical attack, but it will not contaminate

Technical Data
Temperature: -180~+260°C
PH: 0~14
Thickness: 1/32'', 1/16'', 3/32'', 1/8'', 3/16'', 1/4''.
Color: White, Blue.
Size: 60''x60''

Pure PTFE Sheet


Modified PTFE Sheet

PTFE is featured by the best anti-chemical and dielectric properties among the already known plastics. It is also ageless, nonstick, and able to work from -180 ~ +260 degrees. SUNWELL has three styles of PTFE sheets.                       

SUNWELL PTFE products includes sheets, rods, tubes, tapes and gaskets, etc. They are molded, skived or cut from 100% virgin PTFE. It has the best chemical corrosion resistance among known plastics, without being aging, lowest friction coefficient.

SUNWELL B301S - Skived PTFE Sheet
SUNWELL B301M -- Molded PTFE Sheet
SUNWELL B301F -- Filled PTFE Sheet
The filled PTFE sheet are molded PTFE resin mixed with the most frequently used filler materials, glass fiber, carbon fiber and graphite, etc. This style sheet has improved compression strength, better abrasion resistance, high thermal conductivity and lower expansion compared with pure PTFE sheets.

Typical Application
> Made for sealing gaskets
> Electrical insulation parts, lining, oil less lubricating materials etc.

Prime Features
> Best chemical corrosion resistance
> Lowest friction coefficient, wear resistance

Technical Data
Temperature: -180~+260°C

StyleProductsTensile strengthPressure MpaDensity g/cm3Temperature oC
B301SSkived PTFE15 Mpa122.1~2.3-100~+260
B301MMolded PTFE14 Mpa102.1~2.3-100~+250
B301FFilled PTFE10 Mpa162.1~2.5-100~+320

Size mmThickness mmTolerance mm

Modified PTFE Sheet

SUNWELL B4000Range

Modified PTFE Sheet


Modified PTFE Sheets are in order to meet the needs of customers to different working conditions, and reduce the cost. SUNWELL research and design the modified ptfe sheets.

SUNWELL CodeMF4350MF4354MF4351MF4353
CompositionPTFE with silicaPTFE with glass microspheresPTFE with barium sulfatePTFE with graphite
Cont. max.
-268 oC
+260 oC
-268 oC
+260 oC
-268 oC
+260 oC
-268 oC
+260 oC
Pressure bar75555575
Sealability cm3/s (GB/T9129-2003)< 1 x 10-3< 1 x 10-3< 1 x 10-3< 1 x 10-3
Creep Relaxation % ASTM F3820351835
Compressibility Range % ASTM F36-9910~1525~405~127~19
Recovery % ASTM F36-99> 21>25>35>35
Tensile Strength N/mm2 ASTMF 152-9513121111
FlammabilityWill not support flame
Bacterial GrowthWill not support

> Reduced creep relaxation;
> Chemical resistant;
> Cost saving;
> Tighter seal.
Modified PTFE sheets improved performance over conventional PTFE, Reduced product loss and emissions. Excellent bolt torque retention, unique manufacturing process minimizes cold flow problems typical of skived and expanded PTFE Sheets. Withstands a wide range of chemicals for extended service life in a wide variety of applications.

Supplied Sizes:
60'' x 60'' , 70'' x 70'', etc
Thickness: 1/16'', 1/8'', etc


Any questions,please don't hesitate to contact us.

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