Cork Rolls & Sheets
Our most popular type of cork is Nitrile Bonded which is a highly compressible material suitable for low and medium bolt pressure, with good flexibility and resilience. These characteristics along with fuel and oil resistance make this a general purpose gasket material
Applications: gaskets, washers, anti vibration, crocodile strips, pipe insulation, glass polish wheels, roller covering
Availability:
| Roll size (mtrs): |
10 x 1 |
| Thickness (mm): |
0.8 up to 10 |
Other grades of cork available include: plain, resin bonded cork and neoprene bonded.
Technical specification:
Nitrile Bonded Cork
| Material Description |
| Cork granule size (mm) |
2/3 |
| Colour |
Black |
| Binder |
Cork/Nitrile |
| Physical Characteristics |
| Density |
0.6-0.7 |
| Hardness Shore A |
50-70 |
| Compressibility, 400 Psi (%) |
40-55 |
| Recovery (%) |
75 |
| Tensile Strength (kg/cm) |
10.5 |
| Flexibility |
| Original F=5 |
No cracks |
| ASTM No 1 Oil, 70 Hrs at 100c (F16) |
No cracks |
| Oven aged, 70 Hrs at 100c (F16) |
No cracks |
| Volume change after Immersion |
| ASTM No 1 Oil 70 Hrs at 100c (%) |
-10 to +10 |
| ASTM No 3 Oil 70 Hrs at 100c (%) |
-5 to + 40 |
| ASTM Fuel A, 22 Hrs at 23c (%) |
-5 to +10 |
| Specification according to |
ASTM D 194. F2290000. |
| Temperature Range |
-20 to +120 Degrees centigrade |