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At R4 Gaskets, we specialise in high-quality gaskets, gasket materials, and bespoke CNC conversion. For years, our parent company, The Rubber Company, has been a leader the industry with our premium offerings.
Klinger® Gasket Materials
Klinger® gasket materials are our top choice for compressed fibre and asbestos replacement gaskets. Developed in 1886, Klinger® materials are known for their quality and reliability, suitable for a wide range of applications and environments. Many of these grades comply with BS7531 standards and are widely used in industries such as aerospace, chemical, petrochemical, power generation, oil, and gas. Their versatile properties make them ideal for nearly any sealing application.
Custom CNC Profile Cutting
Our CNC profile cutting facilities enable us to convert all sheeting materials into standard flange gaskets, bespoke washers and seals, or custom shapes and profiles to your specifications.
For the best advice on selecting the right Klinger® gasket material, please contact us with the following details:
- Operating Temperature
- Operating Pressure
- Product
- Gasket Size and Details (if a standard flange, please see our flange gasket page or download our flange gasket sizes table).
If you’re still unsure which Klinger® material is right for your application, please refer to our comparison table.
Compressed Fibre Klinger® Gasket Materials
KLINGERsil C-4324
- Temperature Range: Up to +180°C continuous, +350°C maximum
- Pressure: Up to 50 bar
Economical grade general purpose material with good mechanical strength made from aramid, glass and carbon fibres with a nitrile rubber (NBR) bonder. Good resistance to oils, fuels, hydrocarbons, water, low pressure steam and weak acids and alkalis. Anti-stick surface on both sides. Meets the requirements of BS 7531 Grade Y, WRAS approved for use with potable water.
KLINGERsil C-4400
- Temperature Range: Up to +200°C continuous, +400°C maximum
- Pressure: Up to 100 bar
High-grade material manufactured from aramid fibres with a nitrile rubber (NBR) binder commonly used in the automotive and aerospace industries. Meets the requirements of BS 7531 Grade Y and has TA-Luft (Clean Air) approval.
Also available with reinforcements:
KLINGERsil C-4408 with mild steel mesh
KLINGERsil C-4409 with expanded mild steel
KLINGERsil C-4430
- Temperature Range: Up to +200°C continuous, +400°C maximum
- Pressure: Up to 100 bar
Premium grade compressed fibre material manufactured from synthetic fibres and glass fibre with a nitrile rubber (NBR) binder. Exceptional compressive strength, good chemical and temperature resistance in steam and water. Excellent resistance to oils and hydrocarbons. Often used in the aerospace industry. Meets the requirements of BS 7531 Grade X, and is WRAS approved for use with potable water and fire-safe. TA-Luft (Clean Air) approval.
Also available with reinforcements:
KLINGERsil C-4438 with mild steel mesh
KLINGERsil C-4439 with expanded mild steel
KLINGERsil C-4500
- Temperature Range: Up to +220°C continuous, +400°C maximum
- Pressure: Up to 100 bar
Premium grade material based on carbon fibre with a nitrile rubber (NBR) binder designed for use with higher temperatures and pressures than the majority of calendared materials. The use of carbon fibres increases resistance to temperature related ageing and to attack when used in alkaline services. Good resistance to steam and alkaline conditions, oils, fuels and hydrocarbons. Meets the requirements of BS 7531 Grade X, fire-safe with TA-Luft (Clean Air) approval.
Also available with reinforcements:
KLINGERsil C-4509 with expanded mild steel
KLINGERsil C-8200
- Temperature Range: Up to +150°C continuous, +200°C maximum
- Pressure: Up to 60 bar
A compressed fibre material specifically designed to be used in aggressive chemical environments. The blend of fibres are combined with an acid resistant binder, generating resistances to most mineral acids, alkalis, ketones, aldehydes and refrigerants. An economical alternative to PTFE based materials in applications that are less aggressive. TA-Luft (Clean Air) approval.
KLINGER Quantum
- Temperature Range: Up to +350°C continuous, +400°C maximum
- Pressure: Up to 100 bar
Specifically designed material for use at higher temperatures than other compressed fibre material. It has a hydrogenated nitrile butadiene rubber (HNBR) binder which allows for exceptional chemical resistance and greatly improved temperature resistance. It maintains its flexibility even after continued use at elevated temperatures. Fire-safe to API 607 and TA-Luft (Clean Air) approved.
Impregnated Paper Klinger® Gasket Material
KLINGER Statite Gasket Paper
- Temperature Range: Up to +120°C
- Pressure: Up to 8 bar
An cellulose fibre based jointing material impregnated with an adhesive/glycerine composition for low bolt load applications. Excellent oil and fuel resistance, commonly used in the automotive industry.
Top-Line Klinger® Gasket Materials
KLINGER Top-Graph 2000
- Temperature Range: Up to +220°C continuous, +400°C maximum
- Pressure: Up to 100 bar
A combination of expanded graphite and synthetic fibres creating a revolutionary sealing material with outstanding flexibility and excellent resistance to steam, oils, fuels and hydrocarbons. Anti-stick surface on both sides. TA-Luft (Clean Air) approval.
KLINGER Top-Sil-ML1
- Temperature Range: Up to +300°C continuous, +400°C maximum
- Pressure: Up to 40 bar
A unique multi-layer material combining synthetic fibres with HNBR and NBR for improved flexibility at higher temperatures. Good resistance to steam, hot water, oils and hydrocarbons. WRAS approved for use with potable water and fire-safe to API 607. TA-Luft (Clean Air) approval.
Graphite Laminated Klinger® Gasket Materials
KLINGER Graphite SLS/AS
- Temperature Range: Up to +460°C continuous
- Pressure: Up to 140 bar
Pure exfoliated graphite with a stainless steel foil insert for improved handling and load-bearing. The excellent conformability of graphite means the material is suitable for applications where bolt load is limited or flanges are damaged. Excellent resistant to steam with outstanding resistance to high and low temperatures. Finished with an anti-stick surface on both sides, they are easy to cut with an unlimited storage life. Fire safe to ISO 10497.
KLINGER Graphite PSM/AS
- Temperature Range: Up to +460°C (in oxidising atmospheres), Up to +3000°C (in non-oxidising atmospheres)
- Pressure: Up to 150 bar
Made from pure exfoliated graphite with the inclusion of a mechanically fixed tanged stainless steel insert. The insert improves blow-out resistance and ease of handling. Due to the excellent chemical and thermal properties of graphite, it is used extensively in the chemical and petrochemical industries. Finished with an anti-stick surface on both sides to aid removal from the flange even after use at elevated temperatures. WRAS approved and fire-safe to API 6FB.
PTFE Klinger® Gasket Materials
KLINGER Top-Chem 2000
- Temperature Range: Up to +260°C continuous
- Pressure: Up to 150 bar
A heavy-duty modified PTFE material manufactured with the addition of silicon carbide to improve the mechanical properties of the PTFE base material. It has an increased compressive strength and resistance to creep with excellent chemical resistance. Suitable for food, pharmaceutical and chemically aggressive applications. Fire-safe to API 6FA and ISO 10497 with TA-Luft (Clean Air) approval.
KLINGER Top-Chem 2003
- Temperature Range: Up to +200°C continuous, +260°C maximum
- Pressure: Up to 100 bar
A modified PTFE material designed for use in low bolt load applications. Glass microspheres aid the compressibility and general mechanical strength without affecting its chemical resistance. Can be used with glass-lined flanges. Suitable for food and pharmaceutical applications with FDA approval. TA-Luft (Clean Air) approval.
KLINGER Top-Chem 2005
- Temperature Range: Up to +200°C continuous, +400°C maximum
- Pressure: Up to 120 bar
Modified PTFE material optimised for use in acidic applications. The addition of glass improves the mechanical properties of PTFE and increases the operational range. Suitable for a wide range of applications with the exception of strong alkaline conditions. Good mechanical properties at low to medium temperatures. Economical alternative to Top-Chem 2000. TA-Luft (Clean air) approved.
KLINGER Top-Chem 2006
- Temperature Range: Up to +200°C continuous, +400°C maximum
- Pressure: Up to 120 bar
Modified PTFE optimised for use in alkaline applications with excellent chemical resistance and good mechanical properties at low to medium temperatures. The addition of barium sulphate improves the mechanical properties of PTFE and increases the operational range. It is designed for use in alkaline environments and cannot be used with strong acids. Suitable for a wide range of applications in the chemical, pharmaceutical and food industries. Economical alternative to Top-Chem 2000. TA-Luft (Clean air) approved.
KLINGER Soft-Chem
- Temperature Range: Up to +200°C continuous, +250°C maximum
- Pressure: Up to 60 bar
A pure, expanded PTFE material designed for use in low bolt load applications. The multi-directional structure improves the compressive strength and resistance to creep. Suitable for food and pharmaceutical applications with FDA approval. Can be used in glass-lined, plastic, enamel and steel flanges.
High Temperature Klinger® Gasket Materials
KLINGER Milam PSS
- Temperature Range: Up to +900°C continuous
- Pressure: Up to 5 bar
A flame retardant mica based material reinforced with a stainless steel tanged insert, specifically designed for hot, dry gas applications. Excellent resistance to chemicals and embrittlement. Suitable for exhaust manifolds, turbines, turbochargers, air heat exchangers and fuel lines.
Contact Us
For more information on our high-quality Klinger® gaskets and materials, or for assistance with your specific application, please contact our expert team at R4 Gaskets. We are here to help you select the best gasket material for your needs.
