KLINGER® Graphite Laminate PDM

The more highly compressed pure graphite gasket with two rough sheet metal inserts.

Adhesive-free and manufactured from expanded graphite, this gasket material features two 0.1 mm thick tanged stainless steel inserts. Ideal for high-pressure, hot water and steam at temperatures up to 450 °C, this gasket material is free of resins, impregnations or other organic compounds. Furthermore, it displays stable physical properties across the entire temperature range.

Basis composition

Expanded graphite with two 0.1 mm thick tanged stainless steel inserts.

Areas of application

KLINGER® Graphite Laminate PDM is suitable for high-pressure applications, hot water and steam at high temperatures up to 450°C.


General industry / Chemical / Oil & Gas / Energy / Pulp & Paper / Marine / Automotive

Key features

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


  • Stable physical properties over the whole temperature range
  • Very good tightness
  • Suitable for high pressure applications

Typical technical data for thicknesses of 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 % 15 - 25
Recovery ASTM F 36 A % 35 - 45
Compression creep DIN 52913 16 h / 50 MPa / 300 °C MPa ≥ 48

KLINGER cold/hot compression
50 MPa

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

15 - 25
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
Thicknesses 1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm
Tolerances Thickness ±5 %
Length ±5 mm, Width ±5 mm

Other thicknesses, sizes and inserts on request.

Function and durability

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.

Industries who we work with
KLINGER Industry KLINGER Industry Chemical KLINGER Industry Oil Gas KLINGER Industry Energie KLINGER Industry Infrastructure KLINGER Industry Papier und Zellstoff KLINGER Industry Transport KLINGER Industry Pharma
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