Ningbo Zhonggao Rubber & Plastic Manufacturing Co., Ltd. is one of the most reliable manufacturers and suppliers of flat round rubber gaskets in China. The company has world-leading production equipment and strong manufacturing capabilities. Welcome to wholesale custom made flat round rubber gaskets from our factory.
Material Properties
NBR (Nitrile Rubber)
• Fuel resistant
• Temperature range -40°C to +120°C
• Suitable for automotive and industrial hydraulic systems.
EPDM (ethylene propylene diene monomer)
• Ozone resistant
• Temperature range -50°C to +150°C
• Suitable for outdoor or hot and cold water environments.
Silicone (silicone rubber)
• Food grade
• Temperature range -70°C to +220°C
• Used in medical or food equipment.
FKM (Fluororubber)
• Chemical resistant
• Temperature range -20°C to +320°C
• Used in chemical industry and aerospace.
Neoprene
• Ageing resistant
• Flame retardant
• Temperature range -40°C to +120°C
• Suitable for electrical equipment.
Physical Properties
Elasticity and compressibility
Flat round rubber gaskets can fill irregular surfaces and adapt to slight deformations of flanges or joints.
Wear resistance
It can reduce wear caused by vibration or friction.
Insulation (some materials)
Silicone rubber and EPDM are suitable for electrical insulation.
Water-resistant, oil-resistant, acid-resistant and alkali-resistant (depending on the material)
Some materials are resistant to UV radiation or extreme temperatures.
Technical Parameters
|
Compression Set |
Elongation at Break |
Color |
Common Materials |
Operating Temperature |
Hardness (Shore A) |
Environmental Resistance |
Applications |
|
≤20% (70°C × 22h) |
≥200% |
Customizable |
Nitrile Rubber (NBR) |
-40° to 120°C |
55–75 |
Oil, water, air |
Hydraulic, fuel, general sealing |
|
Silicone Rubber (VMQ) |
-70° to 220°C |
55–65 |
Food-grade, medical, high/low temperature |
Food industry, medical devices, insulation |
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|
Ethylene Propylene Diene Monomer (EPDM) |
-50° to 150°C |
55–75 |
Water, steam, ozone |
Plumbing, HVAC, outdoor applications |
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Natural Rubber (NR) |
-60° to 90°C |
50–70 |
Water, air |
Vibration damping, cushioning, low-pressure sealing |
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|
Chloroprene Rubber (CR) |
-40° to 120°C |
60–75 |
Oil, ozone, weather |
Outdoor, weather-resistant, oil-resistant applications |
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|
Fluoroelastomer (FKM) |
-20° to 200°C |
65–85 |
Oil, acids, alkalis, strong oxidizers |
High-temperature, highly corrosive, vacuum applications |
Customized Services
We can customize the size, material, hardness, etc. of flat round rubber gaskets to suit different working conditions.
FAQ
Q: What's your MOQ?
A: If we have the products in stock, it will be no MOQ. If we need to produce, we can discuss the MOQ according to customer's exact situation.
Q: How long is your delivery time?
A: The general delivery time is 10-25 days after receiving your order confirmation. Anther, if we have the goods in stock, it will only take 3-8 days.
Q: Do you provide sample ? Is it free?
A: If the stock sample is low value, we will provide the free sample with freight collect. But for some high value samples, we need to collect the sample charge.
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