Cork & Nitrile Sheet

This cork and nitrile rubber blend combines the compressibility of cork with the flexibility of rubber. HC60 performs well in torque or bolt-pressure flange gaskets, particularly in low-pressure situations. It has good oil and solvent resistance and is typically used for transformers, vehicle oil seals, gearbox seals, cover gaskets, and fluid seals.
 
Code: HC60

Sheet Size: 36" x 36"

Available thickness: 1/16", 1/8", 3/16", 1/4"

Binder: Nitrile Rubber

Color: Mix

Density: 640-880 kg/m ³ 

Tensile Strength: 1.72 MPa

Compressibility: 25-40%

Recovery @ 400 PSI: 80%

Cork Granule Size: 1-2mm

Hardness: 60-80 Shore A

Flexibility:
Original (F=5)- No cracks
Oven aged, 70h at 100°C (F=16)-No cracks
ASTM N°1 Oil, 70h at 100°C (F=16)-No cracks

Volume change after immersion:
ASTM N°1 Oil, 70h at 100°C-->-5% to +10%
IRM 903 Oil, 70h at 100°C---->-2% to +15%
Fuel A, 22h at RT-------------->-2% to +10%

Thickness Change after immersion:
ASTM N°1 Oil, 70h at 100°C-->-5% to +10%
IRM 903 Oil, 70h at 100°C----> 0% to +15%
Fuel A, 22h at RT--------------> 0% to +10%
         Oven aged, 24h 100°C--> -5% to +5%
Fuel B, 22h at RT--------------> 0% to +15%
         Oven aged, 24h 100°C--> -5% to +5%

Compression Set: Method A, 22h at 70°C (max)- 40%