Benefits
- Use of carbon fibres
- Expanded-metal reinforcement
- Improved hot stress retention
- Suitable for high-pressure applications
- Improved blow-out resistance
- Enhanced safety at high internal pressures
Material technical data sheet
Expanded-metal reinforcement for thermal-shock resistance
KLINGERsil C4509 is a special high-pressure gasket for the highest thermal and mechanical loads. Expanded-metal reinforcement provides high load capacity for demanding bolt loads. Its KLINGERsil C4500 base material is Fire-Safe certified.

The essential product information is grouped here to make comparisons and project preparation easier.
Manufactured from high-technology materials, it provides excellent service across the chemical industry, particularly with alkaline media and steam.
Review the available values, formats and technical tables for this product.
KLINGERsil C4509 is a special high-pressure gasket for the highest thermal and mechanical loads. Expanded-metal reinforcement provides high load capacity for demanding bolt loads. Its KLINGERsil C4500 base material is Fire-Safe certified.
Manufactured from high-technology materials, it provides excellent service across the chemical industry, particularly with alkaline media and steam. The main points are: Corrosive or alkaline processes; Steam; Extreme thermal and mechanical loads; Hydrocarbons, Water, Oils, Gas, Refrigerants; Strong acids and bases.
The main stated properties are: Density : 2,0 g/cm3 ; Compressibility (ASTM F 36 J) : 12 % ; Recovery (ASTM F 36 J) : 65 % ; Hot stress relaxation — DIN 52913 (50 MPa, 16 h/300°C) : 39 MPa.
The available formats are: Sheet sizes (C4509) : 1000 × 1500 mm and 2000 × 1500 mm ; Sheet sizes (C4509 L) : 1000 × 1230 mm and 2000 × 1230 mm ; Thicknesses : 1.0 and 1.5 mm ; Tolerances : Length and width ±50 mm — thickness to DIN 28091-1.
Tell our technical team about your application, dimensions and operating conditions.
Request a technical review and quote