KLINGERSIL Hochdruckdichtung

KLINGER® Graphite Laminate SLF

High temperature gasket material with outstanding performance

KLINGER® Graphite Laminate SLF combines easy handling with outstanding long term sealing performance. It complies with the German TA Luft (Clean-air). 


This material is composed of two layers of flexible graphite and a 0.3 mm thick high temperature resistant and firbre based insert.

Areas of application

KLINGER® Graphite Laminate SLF is recommended for applications in which graphite is the material of choice and minimal fugitive emissions are required.

KLINGERSIL® C-4300 ist eine universelle Hochdruckdichtung.

Key features

  • Unique non-metallic reinforcement
  • Excellent chemical resistance
  • High temperature resistance


  • Easy to cut
  • Safe handling
  • Excellent tightness

Typical technical data for thickness 2 mm

Compressibility ASTM F 36 A

  % 40

Recovery ASTM F 36 A

  % 14





Density of Graphite




Leachable Chloride content

  ppm < 40

Purity of Graphite (Carbon)

  % > 99


fibre reinforced




DIN 28090-2 mg/s x m


Stress relaxation

DIN 52913 MPa 40

KLINGER cold/hot compression 
50 MPa

Thickness decrease at 25 °C
Thickness decrease at 300 °C


Continuous service temperature 

  °C 350

Thermogravimetric Analysis (TGA)

DIN 28090-2, 4 h, 670 °C   < 4 %/h

Dimensions of the standard sheets

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

Other graphite qualities, thicknesses and sizes 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 Energy KLINGER Industry Pulp & Paper KLINGER Industry Transport
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