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KLINGER®top-chem 2006


Excellent chemical resistance in strong alkaline applications

KLINGER®top-chem 2006 offers an excellent resistance in strong alkaline applications and good mechanical properties at medium and low temperatures and loads. KLINGER®top-chem 2006 is suitable in a wide range of applications in the chemical industry. This gasket material is free of pigments and also meets FDA conformity.

Basis: PTFE filled gasket material with barium sulfate.

KLINGER®top-chem 2006

Typical Values Refer to 2.0 mm Thick Material

Compressibility ASTM F36 M 4 %
Recovery ASTM F36 M 40 %
Stress relaxation DIN 52913
  30 MPa, 16 h/150°C

18 MPa
KLINGER Cold/Hot Compression Test 50 MPa
  Thickness Decrease 73°F (23°C)
  Thickness Decrease 500°F (260°C)

12 %
41 %
Tightness DIN 28090-2 0.01 mg/s x m
Thickness/Weight Increase
  HNO3, 100%, 18 h/23°C
  NaOH, 33%, 72 h/110°C

1 / 2 %
1 / 1 %
Density 3.0 g/cm3
Average surface resistance ρO 1x10E13 Ω
Average specific volume resistance ρD 1.2x10E13 Ω cm
Average dielectric strength Ed 16.7 kV/mm
Average power factor 50 Hz 0.083 tanδ
Average dielectric coefficient 50 Hz 4.2 εr
Thermal conductivity λ 0.40 W/mK
Color Off-white


» BAM tested
» TA-Luft (Clean air)
» FDA conformity (components comply with the FDA requirements)
» Mainly for use in alkaline
» Excellent chemical resistance
» Resistant to cold flow
» Consistent material composition
» Very good mechanical properties at medium temperatures
» No ageing of the material

The pressure/temperature graphs shown are the most current method of determining the suitability of a gasket material in a known environment. However, chemical compatibility must also be considered.
ρT diagram for thickness 2.0 mm:
klingersil top chem graph
In area 1 the gasket material is suitable using common installment practices subject to chemical compatibility

In area 2 appropriate measures are necessary for installation of the gasket to ensure maximum performance. Please call or refer to KLINGERexpert for assistance.

In area 3 do not install gaskets in these applications without first referring to KLINGERexpert or contacting KLINGER Thermoseal's technical support service.
The ability of a gasket to make and maintain a seal depends not only on the style and quality of the gasket material, but also on medium being sealed, the flange design, the amount of pressure applied to the gasket by the bolts and how the gasket is assembled onto the flanges and tightened. These factors are beyond the manufacturer's control. Please take note of our installation manual in TECHNICAL RESOURCES.