Description:
The O-ring produced with silicone rubber material, collectively referred to as silicone O-ring, is a ring product made of silicone rubber,It is a branch of silicone rubber products, with a wide range of temperature adaptation, sealing, insulation, dielectric property, environmental protection and other good characteristics, Silicone rubber is a kind of highly active adsorption material, belongs to the amorphous substance, insoluble in water and any solvent, non-toxic and tasteless, have excellent chemical stability, Silicon rubber does not react with any substance except strong alkali, hydrofluoric acid . This makes the silicone O-ring can maintain good sealing and insulation
performance in a variety of environments, and is widely used in a variety of occasions requiring sealing and insulation.
Feature:
High and low temperature resistance: Silicone O-ring can be used for a long time at 200 ° C, while remaining elastic at -60 ° C, which makes it maintain good performance in a variety of temperature environments.
Good electrical insulation properties: The dielectric properties of silicone rubber are excellent, especially at high temperatures, The dielectric properties are much better than that of general organic rubber, and the dielectric strength is almost unaffected by temperature in the range of 20-200℃
Perfect weather resistance, ozone resistance and ultraviolet radiation resistance: Silicone O-ring will not crack in outdoor use for a long time, It is generally believed that it can be used outdoors for more than 20 years !.
Biological aging resistance: Silicone O-ring has good biological aging resistance, no rejection reaction with animals, and has good anticoagulant property.
Good processing properties: Silicone O-ring is easy to form, can be made by hot air extrusion vulcanization molding, die molding, extension molding and other methods !
Size:
AS568, ISO3601, JIS, BS,GB,METRIC,INCH
ID(inner dia): from 1mm to 400mm
C/S(cross section): from 1mm to 30mm
Customized sizes are available
Applications:
Silicone O-rings are widely used in various industries due to their excellent physical and chemical properties. Here are some specific application areas:
1. Automotive industry: Silicone O-rings are used in engine, brake system, fuel system, transmission, air conditioning system, heating and cooling system, steering system, etc., to ensure the sealing and safety,
2. Pharmaceutical industry: In the pharmaceutical production line, silicone O-ring is used to ensure the clean and sterile drug production environment to avoid cross contamination.
3. Food industry: Silicone O-ring to meet FDA food grade requirements, used in food processing equipment to ensure food safety and health.
4. Refrigeration industry: Silicone O-ring can resist refrigerant corrosion, such as R134a, R22 and other refrigerant, to ensure the sealing and efficiency of the refrigeration system.
5. Petroleum mining: Silicone O-ring is used in petroleum mining equipment to ensure the tightness and safety of equipment.
6. Hydropneumatic industry: Silicone O-rings are used in hydraulic and pneumatic systems to ensure the stable operation of the system.
7. Semiconductor production: Silicone O-rings used in semiconductor production equipment to ensure a dust-free environment and high purity requirements.
8. Chemical industry: Silicone O-ring used in chemical equipment, can withstand the corrosion and erosion of various chemical substances.
9. Aerospace: Silicone O-rings are widely used in aerospace field for their excellent resistance to high and low temperature and electrical insulation properties.
10. Military: Silicone O-ring because of its reliable performance, is also used in military products sealing and waterproof needs.
11. Ocean ships: Silicone O-rings are used in the sealing system of ocean ships to ensure the safe operation of ships and waterproof requirements.
12. Daily industry: Silicone O-rings are also widely used in drinking fountains, coffee machines, sanitary ware, electric furniture, rice cookers, heating equipment, natural gas equipment and other daily supplies to ensure the tightness and safety of products.
Technical Data Sheet:
| Test Item | Test Condition | Standards | Test result |
| Original Properties | Hardness(Shore-A) | 23℃ | 70±5 | 72 |
| Tensile strength(Psi) |
| ≥725 | 1131 |
| Elongation (%) |
| ≥150 | 290 |
| Density(g/cm3) |
| / | 1.23 |
| Aging-Resistance Testing | Hardness Change(Shore-A) | 225℃×70 h | ≤+10 | 1 |
| Tensile strength Change(%) |
| ≤-25 | -14.6 |
| Elongation Change(%) |
| ≤－30 | -28.9 |
|
|
|
| Compression set | Compression set（%） | 175℃×22 h | ≤30 | 25.3 |
| Water Resistance | Hardness Change(Shore-A) | 100℃×70 h | ±5 | -1 |
| Volume Change（%） |
| ±5 | 2.6 |
| Resistance to ozone | Ozone cracking outdoors chamber |
| No cracks | Pass |
| Low-Temperature Resistance | -55℃×3 min | No cracks | Pass |
The above technical data is only silicon 70sh for reference, We have many different rubber formulas to
meet different customized technical properties requirements.
