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Cork
Cork is the bark of the cork oak, a noble tree with very special characteristics, grown in the Mediterranean region, mainly Portugal.
It is a suitable product that has minimal impact on the environment.
Cork has a range of beneficial characteristics, including excellent resistance to oil and anti-vibration properties. Cork is also relatively cheap, but highly effective in sealing a wide range of applications, including electrical transformers and switchgear, fuel, and oil pumps. Cork is also commonly used as expansion jointing for flooring. As well as providing Cork sheeting and roll material, using our in-house manufacturing facilities, we can produce Cork strips, gaskets, and washers for a wide range of applications.
We can supply Cork sheeting in a variety of grades, including Neoprene bonded or Nitrile bonded Cork.
1mm, 2mm, 3mm, 4mm, 5mm And 6mm As Standard
| Specifications | Typical Values |
|---|---|
| Binder: | Neoprene/Nitrile |
| Spec: | BS2F66 |
| Hardness: | 60 – 80 shore A |
| Specific Gravity: | 0.7 – 0.8 |
**Data as per our current stock grade

| Property | Typical Value |
|---|---|
| Material Description | |
| Cork granule size | U.S Mesh 18/35 |
| Binder | Neoprene/Nitrile Rubber |
| Specification Performance | |
| BSAU RC80-B DEF 22 (Aircraft Industry) BS2F66 (minimum granule mix 65% Nitrile as per British Standard) ASTM F 104 (F225000-M2S9) |
|
| Physical Characteristics | |
| Hardness Shore A | 60 – 80 |
| Specific Gravity | 0.700 – 0.800 |
| Density KG / CU.MT. | 700 – 800 |
| Density LBS / CU.FT. | 43.8 – 50.0 |
| Compressibility @ 440 psi. (28kg/sq.cm) % | 25 – 40 |
| Recovery (min) % | 75 |
| Tensile Strength (min) psi. (250kg/sq.cm) | 17.5 |
| Thickness Tolerance (%) Normal | +/- 10 |
| Flexibility | |
| Original (F-5) | No Cracks |
| Oven aged, 70hrs @ 100°C (F=16) | No Cracks |
| ASTM No 1 Oil, 70 hrs @ 100°C (F=16) | No Cracks |
| Volume change after immersion | |
| ASTM No 1 Oil, 70hrs @ 100°C | -10 to +10 |
| ASTM No 3 Oil, 70hrs @ 100°C | 0 to +20 |
| ASTM Fuel A, 22hrs @ R.T.O | 0 to +10 |
| Test Method | |
| ASTM F 104-59 | – |
| Operates at up to +135c in fluid down to -30c. | |
Specification and test methods according to: ASTM F 104-93.
Oil Resistant
Flame Retardant
Excellent Anti Vibration Properties