*Terms and conditions apply
If you would like to discuss this product, or you require a sample, please call 01702 560194. Alternatively, you can use our contact form.
Please note: All cut material is non-returnable unless faulty as these are non-sellable and have been cut to specific requirements.
Neoprene / Nitrile Bonded Cork Transformer Grade IS-4253 PART II 1988
- Chemical Resistant (Call us to confirm suitability)
- Oil / Fuel Resistant (Call us to confirm suitability)
- Highly durable & resilient
- high resilience, flexibility and compression characteristics
From £20.00 Excl. VAT
From £24.00 Incl. VAT
This product is available for bespoke manufacturing, please choose an option below:
Coru353 is a Nitrile / Neoprene Rubber bonded TRANSFORMER GRADE Cork jointing sheet is a high industrial grade for arduous applications such as transformer, automotive and industrial gaskets. Excellent resistance to transformer oils and fuels coupled with high resilience, flexibility and compression characteristics.
N.B. Available in plain or self-adhesive backed tape (SAB) alternatives. Bespoke sheets and gaskets are available, as well as customised rubber strips. Email your enquiries to sales@coruba.co.uk.
TRANSFORMER GRADE PER IS-4253 PART II 1988
- General Purpose
- High Temperature (See Data)
- Weather / Ozone
- Low maintenance
Properties | Test Method | Unit | Values |
Hardness | ASTM D2240 | Shore A | 60 -80 |
Density (Min) | ASTM F 1315 | Kg/M3 | 700 |
Tensile Strength Min: | ASTM F 152 | Mpa | 1.72 |
Compressibility at 400 psi (min) | ASTM F 36 | % | 25 -35 |
Recovery at 400 psi ( min) | ASTM F 36 | % | 75 |
Flexibility | ASTM F1 47 | – | |
Original (F = 5) | No Cracks No Cracks | ||
Oven aged, 70h @100oC (F = 16) | No Cracks | ||
ASTM No1 Oil 70hr @ 100oC (F 16) | |||
Volume change after immersion | ASTM F 146 | ||
ASTM No1 Oil 70hr @ 100oC | % | -10 to +10 | |
IRM 903 Oil 70hr @ 100oC | % | 0 to +20 | |
Fuel A, 22Hr @ RT | % | 0 to +15 | |
Compression Set , Method A, 22h 70oC ( Max) | % | 40 | |
Rubber Binder | Neoprene/Nitrile | ||
Cork Granular Size | mm | 0.5- 1 | |
Colour: | BLACK |
Properties | Test Method | Unit | Values |
Hardness | ASTM D2240 | Shore A | 60 -80 |
Density (Min) | ASTM F 1315 | Kg/M3 | 700 |
Tensile Strength Min: | ASTM F 152 | Mpa | 1.72 |
Compressibility at 400 psi (min) | ASTM F 36 | % | 25 -35 |
Recovery at 400 psi ( min) | ASTM F 36 | % | 75 |
Flexibility | ASTM F1 47 | – | |
Original (F = 5) | No Cracks No Cracks | ||
Oven aged, 70h @100oC (F = 16) | No Cracks | ||
ASTM No1 Oil 70hr @ 100oC (F 16) | |||
Volume change after immersion | ASTM F 146 | ||
ASTM No1 Oil 70hr @ 100oC | % | -10 to +10 | |
IRM 903 Oil 70hr @ 100oC | % | 0 to +20 | |
Fuel A, 22Hr @ RT | % | 0 to +15 | |
Compression Set , Method A, 22h 70oC ( Max) | % | 40 | |
Rubber Binder | Neoprene/Nitrile | ||
Cork Granular Size | mm | 0.5- 1 | |
Colour: | BLACK |