EPDM Flat Rubber Gasket
- YiDa
- Dalian,China
- 15-20 days
- 2 billion/year
1. We have EPDM rubber gaskets that last twice or even thrice as long as normal rubber gaskets, resulting in lower maintenance costs.
2. Our flat EPDM rubber gaskets can be used in water and steam systems as well as in environments with non-oil chemicals.
3. Being resistant to ozone, UV and weather, our gaskets have also got certifications like IATF 16949.
Have you ever noticed rubber gaskets getting old really fast, breaking, or losing their flexibility in the outdoors or really humid industrial environments which results in them leaking quite often? In order to solve this problem, we have created an EPDM flat gasket that is uniquely made for tough environments.
Though exposed to UV, ozone and high humidity for a long period of time, it all the while keeps its superb elasticity and sealing performance, can be an effective product for pipeline, flange connections water treatment equipment, electrical protection structures, and more.
What Kind of Product Is an EPDM Flat Gasket?
A flat EPDM rubber gasket is a sheet-like sealing item made from ethylene, propylene, and a non-conjugated diene terpolymer. The raw material is mixed, vulcanized, and cut in shape. It has no fabric layers and a smooth surface. It is well suited for static sealing in flanges, valves, pipes, and the like.
Its key specifications are:
| Parameters | Value |
| Material | EPDM (Ethylene Propylene Diene Monomer) |
| Density | 0.86–0.87 g/cm³ |
| Hardness | Shore A 50±5 to 70±5 |
| Tensile Strength | ≥7 MPa |
| Elongation at Break | ≥350% |
| Compression Set | ≤25% (70°C × 22h) |
| Working Pressure | Vacuum to ~1.6 MPa (customizable) |
| Working Temperature | -40°C to +125°C (special formulations can reach -50°C to 150°C; special compounds can withstand 180°C for short periods) |
| Specifications & Customization | Thickness: 1–10 mm; width/length customizable; supports non-standard cutting and punching |
| Color | Black (standard); customizable |
| Core Size | Width/length customizable to any size; supports non-standard cutting and punching |
| Gasket Thickness | Standard 1–10 mm (customizable) |
| Thickness Tolerance | ±0.1 mm |
| Environmental Level | FDA-compliant formulations available (customized to client requirements) |
| Applicable Medium | Water (including hot water and steam), acid and alkali solutions, polar solvents (alcohols, ketones, esters, etc.), automotive brake fluid, and animal/vegetable oils |
| Surface Treatment | Flat gaskets; smooth, textured, or graphite-coated fabric-reinforced finishes available |
| Certification Standards | ISO9001, ISO14001, IATF16949 |
Product Advantages:
Many industrial users choose EPDM flat rubber gaskets for the long term mainly because they maintain good resilience even under prolonged compression, along with the following key benefits:
1. Long service life.
EPDM rubber gaskets are very effective in resisting ozone, UV, and thermal-oxidative aging. When properly used, their life is expected to exceed that of ordinary general-purpose rubber materials. However the exact life will depend on the environment, temperature, pressure, and the quality of the installation, thus reducing in the effective way downtime, maintenance and spare part costs.
2. Wide compatibility.
EPDM rubber gaskets cover the temperature range from -40°C to 125°C while the special grades can be made to work even from -50°C up to 150°C (customized on request). They are water vapor, weak acid, weak alkali, alcohols, and some other kinds of media resistant. These gaskets will work well for flange sealing in HVAC, plumbing, water treatment, and chemical industries that use non-oil mediums.
3. Easy installation.
The flat profile of EPDM gaskets gives the advantage of not having to line up the grooves—simply putting them between the flange faces and screwing down the bolts is enough. They are very easy to handle, and they are capable of adapting even to very irregular surfaces, so they are really good for quick repairs and big industrial works.
4. High cost-performance ratio.
EPDM gaskets are reasonably priced and stable in performance. Combined with their long life and low maintenance needs, the overall lifecycle cost is lower, making them an ideal sealing material for non-oil, medium- and low-pressure conditions.
Based on the Characteristics and Functions of Flat EPDM Rubber Gaskets, They Are Generally Suitable For:
· Pipe flanges, valves, pumps, heat exchangers.
· Curtain wall joints, door and window frames.
· High and low voltage switchgear, outdoor distribution boxes.
· Car cooling systems, radiators, headlights, car doors.
· Non-oil chemical equipment, storage tanks, pipelines.
· Food and drinking water.
Why Choose Yida Rubber?
The rubber industry was our first choice to enter back in 1993. Our official establishment came in 2006. Through these years of experience in manufacturing, we have expanded our base that now spans 37000 sqm and 450 staff are working there. We regularly update our manufacturing system and quality management processes to ensure the provision of reliable rubber product solutions for various sectors like industrial seals, auto parts, pipeline systems, etc. This is a continuous effort not only in terms of production capabilities, corporate partnerships, and service assurance.
Production and Capacity Strength.
More than 2 billion pieces can be produced every year by our factory. Our factory has been certified internationally for quality management (ISO9001), environmental management (ISO14001), and automotive quality management (IATF16949), besides the laboratory of our factory is accredited by CNAS.
Exhibition Activities.
In May 2025, our company took part in the 27th Dalian International Industrial Expo. Being a crucial cooperation platform between Shanghai and Dalian, the expo attracted a huge number of professional buyers from the Yangtze River Delta region as well as Northeast Asian countries. Based on our location advantage, we managed to get in touch with buyers and technical experts from Japan, South Korea, Russia, and other areas, which helped us open up new international business channels.
Global Cooperation.
We are a reliable source of high-quality parts for world-famous brands like SMC, Omron, Siemens, Panasonic, MEPUIA, Eppendorf, and ALPINE. Besides, we are also a great source of energy supporting collaborative development of high-end manufacturing in Northeast Asia. We have dispatched our parts not only to Russia, the United States, Saudi Arabia, Europe, but also to other countries and regions.
Service Guarantee.
Generally, our minimum order quantity is 1,000 units, and we ship products 15 days after receiving the order confirmation. Customers can choose from shipping by land, sea, or air. Products are safely enclosed with self-sealing bags and outer cartons. Samples are available at no cost (the buyer's responsibility is the shipping), and big quantity orders are given the top prices.
FAQ:
1. Can EPDM rubber washers resist water and steam?
Yes, the EPDM material still able to hold its elastic properties and sealing capabilities even when exposed to moisture that makes it ideal for use in water treatment, pipelines, and heating systems.
2. Can EPDM rubber washers be used outdoors?
Yes. EPDM rubber is resistant to UV rays, ozone, rain, and temperature changes.
3. What should be noted when using EPDM rubber washers?
· Media compatibility limitations: not compatible with oily media such as mineral oil, gasoline, diesel, aromatics, or halogenated hydrocarbons.
· Surface treatment before installation: clean the surface by removing oil, rust, dust, and other impurities.
· Try to prevent continuous exposure to strong oxidizers like concentrated nitric acid, potassium permanganate, as well as concentrated acid or alkali solutions.
