KLINGERSIL Hochdruckdichtung

KLINGER® Graphite Laminate PSM

The pure graphite gasket with rough sheet metal insert


Glueless gasket material consisting of expanded graphite and a 0.1mm thick tanged stainless steel insert. The material is free from resins, impregnations or other organic compounds. Therefore it is free of eventual toxic risks. Stable physical properties over the whole temperature range.

Areas of application

KLINGER® Graphite Laminate PSM is suitable for hot water and steam at high temperatures up to 450°C.

KLINGERSIL® C-4300 ist eine universelle Hochdruckdichtung.

Key features

  • Mechanically bonded tanged stainless steel insert
  • Free of organic resins or toxic risks
  • Excellent chemical resistance
  • Excellent high temperature resistance


  • Stable physical properties over the whole temperature range
  • Provides excellent adaptability to any sealing surface
  • Very good tightness
  • Suitable for steam up to 450°C

Typical technical data for thicknesses 2.0 mm


Density of the graphite layer

DIN 28090-2



Purity of graphite1)

DIN 51903 %

≥ 99.0

Metallic reinforcement

Tanged metal
Number of sheets


AISI 316 (L)
Compressibility ASTM F 36 A % 35 - 45
Recovery ASTM F 36 A % 12 - 18
Compression creep DIN 52913 16 h / 50 MPa / 300 °C MPa ≥ 46

KLINGER cold/hot compression
50 MPa

Thickness decrease at 23 °C
Thickness decrease at 300 °C

35 - 45
1 - 3

Specific leakrate λ

DIN 28090-2 mg/s x m <0.10

Chloride content of graphite layer2)

DIN 28090-2 ppm ≤ 40

1) Nuclear quality with a purity of ≥99,8 available on request
2) Detailed specifications of the used graphite foils are found in our Graphite vademecum, which will be sent to you on request with pleasure


Dimensions of the standard sheets

Sizes 1000 x 1000 mm, 2000 x 1000 mm, 1500 x 1500 mm
Thicknesses 0.8 mm, 1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm
Tolerances Thickness ±5 %
Length ±4 mm, Width ±4 mm

Other thicknesses, sizes and inserts on request.

Function and durabilty

The performance and service life of KLINGER gaskets depend to a large extent on proper storage and fitting - factors beyond the manufactor’s control. We can, however, vouch for the excellent quality of our products. With this in mind, please also take note of our installation manual.


Below you can find more product-related information. 

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