C-4500 — Premium High-Temperature / High-Pressure Gasket Material
C-4500 — Premium High-Temperature / High-Pressure Gasket Material - Image 2

C-4500 — Premium High-Temperature / High-Pressure Gasket Material

C-4500 is a premium-grade gasket sheet designed especially for the chemical and pulp & paper industries. The material combines carbon fibres and special heat-resistant additives with an NBR binder to deliver strong sealability, dimensional stability and resistance to alkaline and steam environments. Use C-4500 where general-purpose non-asbestos sheets are not sufficient and a higher temperature/pressure capability is needed.

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Description

C-4500 is a premium-grade gasket sheet designed especially for the chemical and pulp & paper industries. The material combines carbon fibres and special heat-resistant additives with an NBR binder to deliver strong sealability, dimensional stability and resistance to alkaline and steam environments. Use C-4500 where general-purpose non-asbestos sheets are not sufficient and a higher temperature/pressure capability is needed.

Key benefits

  • High temperature & steam capability — developed for superheated steam and elevated temperature alkaline media.

  • Carbon-fibre reinforcement — improved mechanical strength and stability under heavy flange loads.

  • NBR binder for oil/chemical resistance — good resistance to a wide range of process fluids including many hydrocarbon and alkaline media.

  • Suitable for high-pressure service — premium, high-pressure grade for demanding industrial joints.

  • Easier fabrication & reliable sealing — can be cut on site and provides predictable behaviour under bolt load.

Applications & industries

  • Flange gaskets for steam, alkaline process lines and other high-temperature pipelines.

  • Chemical processing plants, pulp & paper mills, power plants and other industrial installations requiring steam/alkaline resistance.

  • Pumps, compressors, heat exchangers and valve flanges operating at elevated temperatures and pressures.

Why choose C-4500?

Choose C-4500 when your application demands more than a general-purpose sheet — when high pressure, alkaline resistance and steam service are part of the duty. Its carbon-fibre composition and heat-resistant additives give superior mechanical strength and stability under flange load, while the NBR binder supports broad chemical compatibility. For plants and maintenance teams that face aggressive alkaline or high-temperature steam conditions, C-4500 reduces the risk of premature gasket failure and helps maintain uptime.

Typical technical specifications

 

Basis composition carbon fibres + heat-resistant additives, NBR binder. Sheet size 1000 x 1500 mm, 2000 x 1500 mm
Color green. Thickness 0.5 mm, 1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm
Industry
General industry/Chemical/Oil&Gas/Energy/Infrastructure/Pulp&Paper/
Marine/Automotive/Food&Beverage/Pharma
TECHNICAL DATA-Typical  values  for  a  thickness  of 2.0  mm
Compressibility ASTM F36J % 11
Recovery ASTM F36J % 60
Thermal conductivity λ W/mK 0.43
KLINGER cold/hot compression thickness decrease at 23℃ % 10
KLINGER cold/hot compression thickness decrease at 300℃ % 15
Tightness DIN 28090-2 mg/s x m 0.05
Density g/cm³ 1.6

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