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Conafi General Purpose Gasket Sheet is an economical grade of compressed non-asbestos fibre (CNAF) gasket material designed for maximum versatility. It is produced from a combination of mineral and aramid fibres that are bound together with an NBR rubber binder. This construction allows Conafi to offer good strength and toughness while still remaining flexible and easy to handle.
This page lists all our standard thicknesses of our Conafi Gasket Material in 500mm Square Sheets. Our online store also this same material available in 1550mm square for those of you who need to make larger gaskets. You can find the link to that at the bottom of this page.
Conafi is widely used in industry and, thanks to its versatility and all-round performance capabilities, is also well suited to a number of automotive, marine and domestic applications. These include gaskets for pumps, tanks, flanges and many other applications where various oils, chemicals, gas, salts, alkalis or water needs to be sealed.
It’s usually used for medium pressure applications (up to abut 6MPa) and in applications where continuous temperatures fall between -30°C and +220°C.
Conafi has been widely tested and recognised by a number of international organisations including Germanischer Lloyd, DVGW, KTW and INIG.
| Colour | Green |
|---|---|
| Temperature Resistance | -30°C to +220°C |
| Potable Water Approved | Yes (KTW) |
| Gas Approved | Yes (DVGW) |
| Oxygen Sealing Approved | No |
| Base Materials | Kevlar Aramid Fibres, Mineral Fibres and an NBR Binder |
| Maximum Continuous Operating Pressure | 6 MPa |
| Density | 2 g/cm³ |
| Compressibility | 11.7% (ASTM F 36) |
| Recovery | 58.8% (ASTM F 36) |
| Creep Relaxation | 20.3% (ASTM F 36) |
For more technical details (including a chart showing the relationship between maximum operating temperature and maximum pressure) please see the technical data sheet (TDS) for this material located on the media tab.
| SKU | SWM000011P01-Sml |
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Technical Data Sheet.
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| Conafi General Purpose Gasket Sheet TDS |
Related Content & Resources.
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| Conafi General Purpose Gasket Sheets Quick Reference Guide | ||||
You can. It’s definitely a little tougher to get through than cork or rubber (due to its highly compressed construction and the presence of the aramid fibres) but you can get through it with a box cutter (Stanley knife). There’s also dedicated gasket cutters that will get through it nicely.
Cutting your own gaskets from Conafi General Purpose Gasket Sheet can be made a little easier but ensuring you have a really sharp knife at the ready, being prepared to make multiple shallow cuts through the material and wetting the blade, with water, from time to time. We don’t really suggest scissors for anything over about 1.5mm thick as these can be a little hard on the wrist muscles.
This is a hard one to answer as it will vary depending on the exact operating conditions (fluid being sealed, temperature and pressure being the big 3 factors). Generally, once the gasket is properly installed and the flange is assembled you can expect years and years of performance.
If the flange is taken apart (especially after the gasket has been in full blown service for quite a while) you may then need to replace it as recovery will be compromised which means that it will not compress as much as previous and a good seal may be hard to achieve.
No. Generally speaking Conafi is designed to work by itself. In some situations, they can help (like when you need to make sure the gasket won’t stick to the flanges even after years of service or when sealing at lower bolt loads) but they’re not required for most applications for Conafi.
Definitely not. We are very careful to ensure that all of our materials are 100% asbestos free. Conafi is no exception.
