Hangzhou Bright Rubber Plastic Product Co., Ltd. is one of the leading manufacturers and suppliers of silicone molded rubber gasket sealing parts in China. If you're going to buy silicone molded rubber gasket sealing parts made in China, welcome to get more information from our factory. We also accept customized orders.
The Art of the Seal: Precision Silicone Molded Gaskets for a Demanding World
In the intricate ecosystem of modern machinery, the margin for error is non-existent. A single leak, a minor vibration, or a microscopic contaminant can bring a multi-million dollar production line to a halt. At the heart of preventing these failures lies a component that is often overlooked until it fails: the sealing gasket.
We do not simply "make rubber parts." We engineer sealing solutions. As a dedicated manufacturer of Silicone Molded Rubber Gasket Sealing Parts, we understand that a seal is not just a passive barrier; it is an active defense system. It is the silent guardian of pressure, temperature, and purity within your most critical assemblies.
Product Description
| Product Description | ||
| Products | Name | Black Silicone Molded Rubber Gasket Sealing Parts |
| Products category | Rubber molded product | |
| Material | Silicone Rubber | |
| Size | All size and thickness available. | |
| Shape | Capable of all shapes as per drawing | |
| Color | Natural,black, Pantone code or RAL code, or as per client's samples or requirements | |
| Hardness | 20°~90° Shore A, usually 30°~80° Shore A. | |
| Surface finishing | Texture (VDI/MT standard, or made to client's sample), polished (high polish, mirror polish), smooth, painting, powder coating, printing, electroplating etc. | |
| Drawing | 2D or 3D draiwng in any image/picture format is OK | |
| Free sample | Yes | |
| OEM/OEM | Yes | |
| Application | Household, electronics, for vehicles like GM, Ford, Renault, Honda. Machinery, hospital, petrochemical, Military and Aerospace etc. | |
| Market | Europe, North America, Oceania | |
| Quality certification | IATF16949, FDA, REACH, ROHS, SGS | |
| QC | Every order production will get more than 10 times regular check and 5 fives times random check by our professional QC. Or by Third party appointed by customer | |
| Mold | Molding Process | Injection molding, mold processing, extrusion |
| Mould type | processing mold, injection mold, extrusionmold | |
| Machines | 350T vacuum pressing machine and other pressing machine at 300T,250T and so on | |
| Tooling equipment | Rubber tension tester, Rubber vulcanization instrument, Durometer, calipers, ageing oven | |
| Cavity | 1~400 cavities | |
| Mould Life | 300,000~1,00,000 times | |
| Production | Production capacity | finish each mold of product in 3 minutes and working on 3 shifts within 24 hours |
| Mold lead time | 15~35 days | |
| Sample lead time | 3~5 days | |
| Production time | usually 15~30 days, should be confirmed before order | |
| Loading port | Hangzhou, Shanghai, Ningbo or as required | |
Product show
Why Silicone? The Material of Extremes
In a world of diverse elastomers, silicone stands apart for its versatility and resilience. While standard rubbers might falter under thermal stress or chemical exposure, silicone thrives. Our facility specializes in harnessing the unique properties of high-purity silicone to create gaskets that perform where others fail.
Thermal Endurance: From the freezing depths of cryogenic storage to the scorching heat of an automotive engine block, silicone maintains its elasticity. It does not become brittle in the cold nor does it melt or deform excessively in the heat.
Chemical Inertness: In an era where industrial processes involve aggressive solvents and oils, our silicone gaskets offer superior resistance. They do not react, swell, or degrade, ensuring the integrity of the fluid path remains intact.
Biocompatibility & Purity: For our clients in the medical and food processing sectors, purity is paramount. Our medical-grade silicone compounds are odorless, tasteless, and non-toxic. They meet the rigorous standards required for direct contact with consumables and biological tissues, ensuring that your product remains safe for the end-user.
The Science of the Mold: Precision is Not Accidental
The difference between a "gasket" and a "sealing solution" is found in the tooling. A poorly molded part will have parting lines that create leak paths or voids that compromise structural integrity.
Our approach to molded rubber gaskets is rooted in precision engineering. We design and fabricate our molds in-house, allowing us to control every micron of the cavity.
The Multi-Cavity Advantage
We utilize advanced multi-cavity molding techniques. This not only ensures high-volume output but, more importantly, guarantees consistency. Every single gasket in a batch of 10,000 is identical to the first. This uniformity is critical for automated assembly lines where a single out-of-spec part can jam a robot.
We employ Liquid Silicone Rubber (LSR) injection molding for complex geometries. Unlike traditional compression molding, LSR allows us to flow the material into intricate channels and undercuts, creating gaskets with complex cross-sections that provide superior sealing force with lower compression loads.
Beyond the O-Ring: Custom Geometries for Custom Problems
While the O-ring is the industry standard, modern engineering often demands more. Your assemblies are unique, and your seals should be too.
We specialize in non-standard, custom-molded gaskets. Whether it is a D-shape for a door seal, a complex X-profile for dynamic reciprocating motion, or a flat gasket with integrated locking ribs, we translate your CAD data into physical reality.
Our engineering team works closely with clients to optimize the compression set of the gasket. We calculate the exact "squeeze" required to create a perfect seal without over-stressing the housing. This balance prevents the gasket from taking a permanent set (flattening out) over time, which is the leading cause of leaks in long-term applications.
Quality Assurance: The Invisible Standard
In 2026, quality control goes beyond the caliper. While we meticulously measure dimensions, the true test of a silicone gasket is often invisible.
Flash-Free Molding: We utilize flashless molding technologies to minimize post-processing. This means the gasket you receive is ready to install, with no jagged edges to cut seals or trap debris.
Automated Optical Inspection (AOI): Our production lines are equipped with vision systems that scan every part for surface defects, air bubbles, or contamination.
Material Traceability: Every batch of silicone is tracked from the raw polymer to the finished part. If a specific lot of material is used, we know exactly which machines it went to and when it was cured. This level of traceability is essential for our automotive and aerospace partners.
General introduction of HANGZHOU BRIGHT RUBBER PLASTIC:
Hangzhou Bright Rubber Plastic Products company was established in 2004 year, Located in Hangzhou,China. We are an OEM/ODM professional manufacturer focused on solutions of rubber and plastic products. It represents high quality and is backed up by our team of quality assurance experts and our IATF16949 certifications. Its plant occupies over 2500 square meters of land. Our main customers come from Europe,America and Oceanica, Example USA, Canada, Sweden, Denmark,Germany, Australia, Finland, Our strengths are our ability to respond quickly and efficiently to customer needs, excellent quality standards, and top notch follow-up service. Our strong engineering team supports our ability to provide excellent quality and on-time delivery. Our reputation is based on good credit, quality and service which is highly appreciated by customers in European and North American market. With mature and stable management team, advanced equipment and leading technology, experienced marketing team, a good reputation among our customers, the Group is making every effort to create the new brand of rubber, plastic products, metal products, mold processing in the world. "leadship through quality and service, To create value for customers is creating a future for ourselves" as our motto. Welcome overseas friends to visit our company. Looking forward to your support more!
Office:
Our sale office is located in Hangzhou city downtown, Zhejiang Province, China. It is in 1.5~2 hours drive distance to both our factory and airport or sea port in Shanghai or Ningbo. It is also convenient to meet customers from different countries.
Products and materials:
Our company is engaged in manufacture Rubber and plastic parts. The main products include molded rubber parts, Extrusion silicone tube/strip, silicone sponge tube, Injection plastic parts, Extrusion plastic parts, Rubber sponge parts, PVC dipping.
We make these parts according to the drawings or samples from customers with various shape,dimension and color , Example rubber rings, bellows, seals,hose,plug,bumper and so on, The main rubber raw material is EPDM,NR,SBR,Nitrile, Silicone, Fluorosilicone, Viton(FKM), Neoprene, Urethane(PU), Polyacrylate(ACM), Ethylene Acrylic(AEM), HNBR, Butyl(IIR) with 30~90 Shore A hardness. The main plastic raw material is PP, PA, PE, POM, PC, PVC, PS, PVC, TPE, TPR, TPU ,Santoprene. Especially we have advantage in rubber seals and auto rubber parts, We have produced many parts for some automotive enterprise like GM, Ford, Renault, Honda.
Applications: Where We Seal the World
Our gaskets are currently working silently in some of the most demanding environments on the planet:
New Energy Vehicles (NEV): Sealing battery housings against water ingress (IP67/IP68 standards) while resisting coolant fluids.
Consumer Electronics: Providing waterproof seals for wearables and smart home devices without adding bulk.
Industrial Automation: Dampening vibration and sealing pneumatic systems in high-speed robotics.
A seal is a promise. It is a promise that the fluid will stay in, the contaminant will stay out, and the machine will keep running. When you partner with us for your Silicone Molded Rubber Gasket needs, you are partnering with a team that takes that promise seriously. We don't just mold rubber; we mold reliability.
Profound experience:
Our engineers and QC experts are engaged in rubber plastic industry over 30 years. Our core management team has rich experience and deep understanding of rubber and plastic development.
Production capacity:
Factory is working 24 hours by 3 shifts every day, It takes only 3 minutes to finish one mold of products. (If one mold has 50 cavities, then we can produce 50PCS of products within 3 minutes). Production machines including 350T vacuum pressing machine, 300T pressing machine, 250T machines and more others.
Quality control and test:
It has more than 10 times of quality check for every order, beginning from raw material check to package check. Every production line has at least two QC staff for random check and regular check. Test: manufactory testing machine includes rubber tension tester, rubber vulcanization instrument, durometer, calipers, ageing oven for Density test, Elongation at break, Bonding strength, Pulling force test, twisting force test, Rergarding other test like anti-high/low temperature which will be tested by Third Party Testing Center as customer required.
Sale service:
Every salesman should be in service after strictly trained with productions knowledge and customer-service requirements. Be skilled in exporting business procedure and English communication.
FAQ:
Q: Are you manufacturer or trading company?
A: we are manufacturer.
Q: How to get the quickest quotation?
A: send e-mail with drawing directly.
Q: How to get quotation without drawing?
A: possible send sample, pictures or detail descriptions of products to us, we will return you drawing for confirm.
Q: How about sample?
A: free sample is available for your quality evaluation, but you should pay the freight. Regarding customize products, sample and mould order will go first before mass production.
If any needs or questions, pls contact with us freely.
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