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Improved PTFE Gasket

JINTAI 9900/9900N

ASTM F104:F452111-A9B5E11K6M6

Filled PTFE gasket material


JINTAI 9900/9900N is widely used in chemical, pulp and paper, food and beverage, and railway tank car industries. This gasket material has been tested evaluated and approved for use in liquid chlorine, caustic soda, liquid oxygen, and high-purity pharmaceutical industries. Among them, 9900N is approved for use in the plasma component manufacturing industry. JINTAI 9900/9900N is designed to be used in situations where it is required to withstand strong chemical corrosion. Unpigmented white gasket materials like style 9900N are available. Both styles 9900 and 9900N (including marked styles) comply with FDA requirements.

JINTAI 9900 is approved for use through the Chlorine Institute's Testing Protocol and is listed as a qualified gasket material for drying chlorine (liquid and gaseous), as published by the Chlorine Institute, Pamphlet No. 95, 3rd Edition. In addition, JINTAI 9900 is approved for use in caustic soda manufacturing equipment. Unlike ordinary glass fiber-filled PTFE gasket materials, the shape of the filler in JINTAI 9900 prevents capillary action that causes corrosion of the flange surface.

JINTAI 9900/9900N has been independently tested and certified (BAM) and is approved for use with media such as liquid oxygen at pressures not higher than 585psi (40bar) and temperatures not higher than 392°F (200°C). Gaskets for oxygen are available from distributor stock, but proper cleaning procedures must be followed before installing such gaskets.

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JINTAl 9900 is evenly mixed with various shapes of inorganic fillers in pure PTFE resin with due physical and academic properties. This gasket material is suitable for use on steel flanges without the cold flow issues associated with pure PTFE or the hardness issues associated with some other filled PTFE gasket materials. This material is easy to cut and process, and it is clean to remove from the flange after use.

Typical performance:


Style 9900 - blue, marked
Style 9900N - white, marked


Inorganic filler

Applicable temperature range:

-350~-520°F(-212- -271℃)

Pressure, max.


Fluid pH range (room temperature):


Sustained maximum temperature


Applicable fluid media:

Steam, oil, liquid chlorine, acids, alkalis, hydrogen peroxide, titanium dioxide, oleum, volatile and gaseous oxygen



Tensile Strength, ASTM F152

2000psi (138MPa)

Compression rate: ASTM F36


Rebound rate: ASTM F36




ASTM F37 (Fuel A)


ASTM F37 (Nitrogen)

0.02 mL/hr

DIN3535 gas permeability


TA-Luft Regulation (VDI Guideline 2440)

It was approved

Volume resistivity, ASTM D257

1.0x105 ohm-cm

Dielectric breakdown voltage, ASTM D 149


Creep relaxation rate ASTM F38


Flexibility, ASTM F147


BAM-Oxygen Test:

Gaseous oxygen


Pressure up to 40 bar (580 psig) Temperature up to 200°C (392°F)


Liquid oxygen


Complies with 21CFR 177.1550 for food and drug contact requirements

Note :

The performance of the ASTM standard is measured based on the base frame plate thickness of 1/16 inches, but ASTM F38 is measured based on the plate thickness of 1/32 inches. These properties can only be used as a general reference and cannot be used as a basis for risk or rejection. The data listed in this table are within the normal range of product performance. These data should not be used to compile technical specifications or used alone as a basis for design.

*When used for nominal pressure Class 300 or above, please consult our representative office.


About Us
Jiangsu Jintai Sealing Technology Co., Ltd.
Jiangsu Jintai Sealing Technology Co., Ltd.
Founded in 2004 , which located on Xingyuan Road, Yuanzhu Industrial Park, in Taixing, Jiangsu Province. With the accumulated years of scientific experiments and manufacture, our company has possessed sound quality management manuals and monitoring systems.
As a large comprehensive sealing technology enterprise, we specialize in researching, manufacturing and selling various types of seals, environment-friendly asbestos-free gaskets, specialized rubber material products and parts insulation materials for pneumatic and hydraulic systems. Moreover, we have formed a complete set with many industries such as shipping, power, iron and steel, chemistry, and machinery for many successive years.
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