Silicon Rubber O Ring
Silicone o-rings offer wide temperature ranges and low temperature flexibility. Silicone is renowned for its retention of flexibility and low compression set characteristics. Silicone also has one of the widest working temperature ranges for elastomers. Silicone O-rings also have good heat resistance, cold flexibility and insulating properties.
Not recommended for dynamic O-ring sealing applications. As its low tear strength and high coefficient of friction. Silicone also does not perform well with Concentrated acids, fuels, gear Oils, ketones, steam., etc
Advantages
• Excellent resistance to oxygen, ozone and sunlight
• Excellent heat and compression resistance
• Resistance to fungal and biological attack
• Good chemical resistance
• Good electrical insulation
• FDA Standard
• Flexible
Application
• Mineral oils with low additive contents
• Food processing Machinery Industry
• Household appliance industry
• Sunlight, Ozone, Weathering
• Wide Temperature Range
• Medical industries
• Petrochemicals
• Electronics
• Dry Heat ., etc
Silicon Properties
|
Item |
Silicon |
Test Method |
|
Color |
White/red |
|
|
Specific gravity |
1.2-1.3/cm3 |
ASTM D297 |
|
Hardness |
50°-90 Shore A |
ASTM D2240 |
|
Tensile strength |
8 MPa (min) |
ASTM D412 |
|
Elongation at break |
200% (min) |
ASTM D412 |
|
Size |
Varies |
|
|
Compression set 175°C 22 hrs |
Permanent set 30%(max) |
ASTM D 395B |
|
Tear resistance |
15 kg/cm (min) |
ASTM D624 |
|
Temperature range |
-80°C to +200°C |
|
Key: 
= Excellent , 
= Good, 
= Fair, X = Not Recommended
