Rubber Molds
Rubber molds are custom-shaped tools or components made through compression or injection molding. They are used to form or replicate parts in industries such as consumer goods, packaging, and medical devices. Bright Star develops rubber molds based on client drawings or samples. Our precision molding capabilities allow for high-volume production of complex geometries with tight tolerances and material traceability.
Polymers:
BRIGHT STAR has successfully developed formulations and rubber components based on the following polymers and has been supplying to diverse industries over
the past few decades.
- FFKM/ Perfluoroelastomer
- FKM / Viton ®
- TFE/P/Aflas ®
- Silicone, Flurosilicone
- Nitrile (NBR), Carboxylated
- NBR (XNBR) / PVC Nitrile
- SBR
- EPDM, EPR
- Chloroprene / Neoprene®
- Natural / PLC / Polyisoprene
- Polyurethane
| MATERIAL | HARDNESS RANGE (SHORE A) | HIGH TEMP °C | LOW TEMP °C | STEAM |
| FFKM | 70-90 | 300 | -10 | E |
| FKM (VITON) | 50-90 | 230 | -20 | F-G |
| AFLAS | 60-90 | 200 | -10 | E |
| NBR | 20-95 | 100 | -30 | F-G |
| HNBR | 50-95 | 150 | -40 | G |
| SBR | 40-90 | 100 | -40 | P |
| EPDM | 40-90 | 150 | -40 | E |
| SILICONE | 20-80 | 200 | -60 | F-G |
| NR | 30-90 | 70 | -50 | P |
| CR | 40-90 | 100 | -40 | F |
Rating
- E = Excellent – Suitable for prolonged exposure to saturated steam at high temperatures
- G = Good – Suitable for moderate steam exposure with some limitations
- F = Fair – Can handle light or intermittent steam but not continuous service
- P = Poor – Degrades quickly in steam; not recommended
Related Products
Bright Star manufactures high-purity rubber components that meet pharmaceutical standards. We ensure compliance with FDA, USP Class VI, and ISO 10993. Our products are designed for single-use and repeated-use applications in drug delivery systems, diagnostic equipment, and biotech processing lines
Rubber bellows protect moving parts from dust, dirt, moisture, and vibration. They are flexible connectors used in mechanical joints, actuators, and valves. Our bellows ensure smooth movement and extend the service life of sensitive components in automation and transport equipment. We produce both convoluted and molded types in various configurations for axial, lateral, or angular movemen
Canvas and Chevron seals are used in heavy-duty hydraulic applications. Chevron seals consist of a stack of multiple sealing elements that adjust to pressure variations. Canvas seals, made from rubber-coated fabric, offer enhanced pressure resistance. These seals are widely used in press machines, earth-moving equipment, and mining systems. Bright Star offers customized V-packings and fabric-reinforced seals for high-pressure systems needing excellent flexibility and sealing capability
These rubber parts are formulated with carbon or conductive fillers to safely dissipate static electricity. They are critical in electronics, explosive environments, and cleanroom operations. Bright Star’s anti-static components meet ESD and EMI standards. Our product line includes conductive mats, tubing, seals, and gaskets tailored to sensitive electronic assemblies and volatile handling areas
Rubber diaphragms are flexible membranes used to separate two chambers while transferring pressure or movement. Commonly found in pumps, valves, and regulators, they must offer consistent elasticity and chemical resistance. Bright Star manufactures diaphragms for precise performance and long service life. Our diaphragms are engineered for dynamic response, low permeation, and resistance to aggressive media such as acids, solvents, and gases.
Rubber seals are used to fill gaps between two surfaces and prevent fluid leakage, dust ingress, or vibrations. These include lip seals, shaft seals, and radial seals made from materials such as NBR, Viton, and Silicone. Our seals ensure durability and chemical resistance in harsh working conditions, serving key sectors like automotive, appliances, and heavy machinery. We offer custom-molded and standard seal designs that can withstand a wide range of temperatures and media, ensuring long-term performance.
Rubber stoppers are used to seal glass vials, infusion bottles, and reagent containers. These are manufactured in pharmaceutical-grade rubber and tested for biocompatibility and extractables. We offer sterilizable formulations and customized designs to support aseptic packaging and long shelf life
Customized rubber components are engineered for specific client applications, from sealing to vibration isolation. Bright Star Rubber Corporation specializes in tailored solutions with rapid prototyping, tooling, and material selection. We collaborate with clients across sectors to co-develop components that meet unique design, compliance, and environmental performance standards
Rubber gaskets provide a reliable seal between two surfaces in static applications. Bright Star manufactures gaskets from NBR, EPDM, Silicone, and Neoprene for applications in water pipelines, HVAC systems, and flanged joints. They offer excellent compressibility, resilience, and resistance to weathering. We offer precision die-cut and custom-molded gaskets that conform to a variety of surface geometries, even under high pressure and fluctuating temperatures.
Rubber pipeline rings provide sealing and cushioning in duct pipes, joints, and manholes. They absorb expansion, reduce vibration, and prevent leakage in drainage and sewer systems. Bright Star offers rings in EPDM, NBR, and Neoprene for civil, industrial, and infrastructure applications
O-rings are circular elastomeric seals used to prevent the leakage of fluids or gases in mechanical systems. These versatile components are widely employed across industries such as automotive, aerospace, oil & gas, food processing, and more. Bright Star manufactures O-rings in a wide range of sizes and polymers like NBR, Viton, Silicone, EPDM, Neoprene, and FFKM to suit different chemical and temperature conditions. Their simplicity, cost-effectiveness, and high sealing efficiency make them a critical component in both static and dynamic applications. We ensure tight dimensional tolerances, excellent resilience, and compatibility with a variety of lubricants and fluids for both high- and low-pressure applications.
