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Discover all our environmental sealing solutions

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All of our CEM environmentale sealing seals are formulated with specific silicone grades which constitute the core of our formulations. Our R&D laboratory and our design office support you from the selection of the CEM sealing materials to the choice of the transformation process.

Our solutions offer many advantages:

  • High permeability and gas absorption
  • Resistance to natural ageing, light and ozone
  • Low degradation of properties with temperature
  • Resistance to fire and heat
  • Chemical resistance
  • Physiological safety

The internal control of the different processes (extrusion, cutting, molding, injection, automatic removal, vulcanization on the cover, etc.) allows us to adapt a tailor-made solution to your environment.

Technical properties of our environmental sealing products range

Properties Standards - Tests Silicone range Fluorosilicone range
Hardness (Shore A) ASTM D 2240 25 to 80 30 to 70
Specific mass at 25°C (g/cm3) ASTM D 792 1.10 to 1.43 1.36 to 1.48
Tensile strength (Mpa) ASTM D 412 6 to 6.89 6.80 to 8.60
Elongation (%) ASTM D 412 165 to 950 300 to 480
Residual deformation after compression 22 hours at 177°C (%) ASTM D 395 Method B 20 to 35 20 to 25
Properties : Hardness (Shore A)
Standards - Tests : ASTM D 2240
Silicone range : 25 to 80
Fluorosilicone range : 30 to 70
Properties : Specific mass at 25°C (g/cm3)
Standards - Tests : ASTM D 792
Silicone range : 1.10 to 1.43
Fluorosilicone range : 1.36 to 1.48
Properties : Tensile strength (Mpa)
Standards - Tests : ASTM D 412
Silicone range : 6 to 6.89
Fluorosilicone range : 6.80 to 8.60
Properties : Elongation (%)
Standards - Tests : ASTM D 412
Silicone range : 165 to 950
Fluorosilicone range : 300 to 480
Properties : Residual deformation after compression 22 hours at 177°C (%)
Standards - Tests : ASTM D 395 Method B
Silicone range : 20 to 35
Fluorosilicone range : 20 to 25

Shaping available

All our environmental sealing solutions are available as sheets, extruded profiles, O-rings, moulded or die-cut.

Our know-how and our support policy also includes taking into account your constraints and tolerances, which is why all of our solutions can be made to measure according to your specific plans and manufacturing processes within a short timeframe.

Consult our products catalog online 

Discover our entire range of environmental sealing solutions