Compressed Non-Asbestos Fibre Material (CNAF)
This range of products have been designed and manufactured to replace the now extinct and banned range of Asbestos based gasket materials.
Manufactured from a mixture of organic fibres and rubber binders, with fillers based on synthetic fibres, mineral fibres, carbon, aramid and glass fibres this range of sheeting products offer great versatility thanks to their highly flexible chemical and physical properties ensuring sealing of maximum reliability and durability even in critical sealing applications.
There are 3 main sub categories of CNAF materials each category having several different versions using a blend of different fibres and fillers to meet varying service conditions to seal media at a range of temperatures and pressures.
This range of products are available from stock as cut gaskets or in sheet form up to 2 metre x 1.5 metre and in a range of thicknesses up to 3 mm as standard
Grade X
Superior performance CNAF sheet jointing with excellent mechanical properties and good chemical and temperature resistance. The manufacturing compounds are based on Glass, Inorganic and Aramid Fibres bound with a high quality Nitrile NBR binder meeting the requirements of BS7531 Grade X.
- WRAS / WRC Approved for use in hot and cold potable water
- API 6FB Fire-Safe
- TA-Luft (clean air) in accordance with VDI guideline 2440
- Temperature from –200⁰C up to 400⁰C
- Maximum Pressure up to 120 bar
- Excellent resistance to solvents, refrigerants, water and steam
- Media compatibility with oils, fuels, solvents, and hydrocarbon compounds
- Suitable for use with Oxygen Service
Grade Y
High quality CNAF sheet jointing specifically developed to meet the requirements of BS 7531 Grade Y.
These have compressed aramid fibres with a combination of other functional fillers bound with a high quality nitrile rubber and are suitable for use across a broad range of industrial sealing applications.
- WRAS / WRC Approved for use in potable water
- Fire-Safe
- TA-Luft (clean air) in accordance with VDI guideline 2440
- Temperature from -200⁰C up to 450⁰C
- Maximum Pressure up to 140 bar
- Resistance to solvents, refrigerants, water and steam
- Media compatibility with oils, fuels, and hydrocarbon compounds
- Suitable for use with Oxygen Service
General Service Grade
A cost effective grade of CNAF sheet jointing based on a mixture and blend of fibres bound with a nitrile rubber binder. Suitable for general use including oils, hydrocarbon compounds and low pressure steam and water
- Temperature from –100⁰C up to 250⁰C
- Maximum Pressure up to 50 bar
- Resistance to solvents, refrigerants, water and steam
- Media compatibility with oils, fuels, and hydrocarbon compounds
