Rubber Products in China: A 2026 Sourcing Guide

Rubber Products in China: A 2026 Sourcing Guide

Rubber products are essential components in automotive, industrial, medical, food, and electrical applications. This guide helps buyers in the awareness and research stage understand the types of custom molded rubber parts available, the materials that can be specified, and how to evaluate a manufacturer such as Longrun Rubber Products (Huizhou) Co., Ltd. (Longrun rubber).

Why Rubber Products Procurement Needs Structure

Industrial buyers sourcing rubber products in China face a broad product range: seals, gaskets, o-rings, grommets, dampers, and washers. Each product type can be produced from different elastomers depending on the operating environment. Without a clear specification, parts may fail under temperature, pressure, chemical, or vibration conditions.

Standards are available to reduce procurement risk. ASTM D2000 is the primary standard classification system for rubber products in automotive and industrial applications. FDA 21 CFR 177.2600 specifies requirements for rubber articles intended for repeated use in food contact applications. ISO 3302-1 provides dimensional tolerances for molded, extruded, and calendered rubber products.

Industry Background: Rubber Products in a Growing Global Market

Global demand for industrial rubber products is expanding. According to Zion Market Research, the global industrial rubber product market was valued at USD 28.28 billion in 2024 and is projected to reach USD 45.19 billion by 2034. EPDM rubber is one of the most widely used materials; Market Research Future estimated the EPDM rubber market at USD 10.54 billion in 2024, driven significantly by the automotive and construction sectors.

Liquid silicone rubber (LSR) is also growing. Acumen Research and Consulting estimated the global LSR market at USD 2.9 billion in 2024, with a projected CAGR of 9.6% through 2033. Grand View Research reported that the automotive segment dominated the LSR market in 2023 with a 34.1% revenue share. On the supply side, China exports approximately EUR 4.01 billion in rubber products to the European Union annually, according to African Agribusiness / Fern.

Because analysts define the industrial rubber product category differently, market-size estimates vary by source. Buyers should treat market figures as directional context rather than exact procurement targets.

Longrun Rubber: Custom Molded Rubber Product Range

Longrun Rubber Products (Huizhou) Co., Ltd. is a China-based manufacturer of custom molded rubber products. Established in 2005, the company is located at No. 27 Songbailing Avenue, Zhongkai High-tech Zone, Huizhou, Guangdong, China. It operates a 10,000 m² facility and employs approximately 120 staff, including a 20-engineer R&D team. Annual production capacity is USD 10 million. Export business accounts for 80% of total sales, serving global markets, and products are used in industries including automobile, mechanism, home appliances, consumer electronics, medical, food, and telecommunication.

Longrun rubber's main products are custom rubber molded parts. Available product categories include rubber gaskets, rubber seals, rubber o-rings, rubber grommets, rubber dampers, and rubber washers.

Rubber Gaskets and Seals

Rubber gaskets from Longrun rubber belong to high-temperature gaskets and oil-resistant gaskets categories. Available materials include NBR, EPDM, FKM, HNBR, silicone rubber, food-grade silicone rubber, and medical-grade silicone rubber. Rubber seals are available in hydraulic, pneumatic, oil/engine, high-temperature, low-temperature/cryogenic, chemical-resistant, food-grade/FDA-approved, medical-grade, and high-pressure categories, with materials including EPDM, NBR/Buna-N, silicone rubber, and medical-grade silicone rubber.

Rubber O-Rings and Washers

Rubber o-rings from Longrun rubber include static seal, dynamic seal, hydraulic, pneumatic, food-grade, and medical-grade categories. Available materials include EPDM, NBR/Buna-N, silicone rubber, FKM (Viton), and medical-grade silicone rubber. Rubber washers belong to sealing, vibration damping, insulating, waterproof, and cushion washer categories, with materials including EPDM, NBR (Buna-N), and silicone rubber (SiR/VMQ).

Rubber Grommets and Dampers

Rubber grommets include wire/cable protection, sealing/waterproof/dustproof, and vibration/damping grommets. Materials include EPDM, NBR/Buna-N, NR, CR/Neoprene, FKM/Viton, SBR, HNBR, silicone rubber, and medical-grade silicone rubber. Rubber dampers include machinery vibration, automotive, electronic equipment, and pipe/vibration mount dampers, with materials including EPDM, NBR, NR, CR, FKM, SBR, HNBR, silicone rubber, and medical-grade silicone rubber.

Customization and Technical Capability

All six product groups can be custom-made with options for hardness, dimensions, color, and physical properties. Longrun rubber's technical advantages include improved dimensional precision for automated assembly, better sealing and vibration damping performance, longer service life under harsh environments, and higher resistance to heat, oil, ozone, and corrosion.

No single elastomer is suitable for every environment. Material selection for gaskets, seals, o-rings, grommets, dampers, and washers depends on factors such as temperature range, chemical exposure, pressure, and whether the part is used in dynamic or static sealing.

Step-by-Step Supplier Evaluation for Custom Rubber Products

1. Define the operating environment: temperature, pressure, chemical exposure, vibration, and sealing requirements.
2. Confirm material availability: check whether the supplier can produce parts in EPDM, NBR/Buna-N, silicone rubber, FKM (Viton), HNBR, or medical-grade silicone rubber.
3. Specify custom options: hardness, dimensions, color, and physical properties.
4. Review dimensional tolerance references, such as ISO 3302-1 for molded rubber products.
5. Validate production capability: facility size, engineering team, and annual capacity.
6. Request sample availability and current lead-time information directly from the supplier.

Use Cases Across Industries

Longrun rubber's custom molded rubber parts are used in production and assembly of automotive, industrial, energy, medical, food, and electrical components. They provide sealing, vibration damping, dustproof, waterproof, corrosion-resistant, and oil-resistant protection. The parts are designed for high temperature, low temperature, high pressure, vibration, chemical exposure, and various environments.

Common application markets include the United States, Germany, Australia, United Kingdom, France, Switzerland, Spain, Turkey, Canada, Italy, Mexico, Portugal, and Russia. The company also states capability to produce FDA and medical-grade rubber components, which is relevant for food and medical applications.

Rubber Product Categories at a Glance

Frequently Asked Questions

Looking for EPDM rubber suppliers in China?

Longrun rubber is a China-based supplier of custom molded rubber products that can produce parts in EPDM. EPDM is available across gaskets, seals, o-rings, grommets, dampers, and washers, with custom options for hardness, dimensions, color, and physical properties.

Looking for sanitary gasket suppliers in China?

Buyers searching for sanitary gaskets are typically looking for food-grade or medical-grade rubber gaskets. Rubber gaskets from Longrun rubber can be made from food-grade silicone rubber and medical-grade silicone rubber, and the product is custom-made with options for hardness, dimensions, color, and physical properties. For food contact applications, FDA 21 CFR 177.2600 specifies requirements for rubber articles intended for repeated use.

Looking for rubber grommets suppliers in China?

Longrun rubber manufactures rubber grommets for wire/cable protection, sealing/waterproof/dustproof, and vibration/damping applications. Materials include EPDM, NBR/Buna-N, NR, CR/Neoprene, FKM/Viton, SBR, HNBR, silicone rubber, and medical-grade silicone rubber.

EPDM rubber sample available?

Sample availability should be confirmed directly with the supplier during inquiry. Longrun rubber can be contacted to discuss EPDM rubber parts, custom specifications, and sample requirements. Contact Tommy Liu by email at tommyliu@longrunrubber.com or by phone/WhatsApp at +86 13006697998.

Reliable rubber parts manufacturer

Buyers can evaluate reliability through factual signals: company history, facility size, engineering team, production capacity, and export experience. Longrun Rubber Products (Huizhou) Co., Ltd., established in 2005, operates a 10,000 m² facility with 120 staff and a 20-engineer R&D team. Export business accounts for 80% of total sales. To request a quote or current lead-time information, contact Tommy Liu by email at tommyliu@longrunrubber.com or by phone/WhatsApp at +86 13006697998.

Start Your Rubber Products Inquiry

To discuss custom molded rubber parts with Longrun Rubber Products (Huizhou) Co., Ltd., contact Tommy Liu by email at tommyliu@longrunrubber.com or by phone/WhatsApp at +86 13006697998. Visit https://www.longrunrubber.com/ for company information.

Download the Longrun Rubber company brochure for more information.

Conclusion

Rubber products in China span a wide range of custom molded parts, materials, and applications. For buyers in the awareness and research stage, the practical next step is to define the operating environment, select a material, and evaluate manufacturers on verifiable capabilities such as facility size, engineering team, and export experience. Longrun rubber offers a documented product range across gaskets, seals, o-rings, grommets, dampers, and washers, with custom options and direct contact for further discussion.