High-performance rubber component manufacturing delivering airtight sealing solutions for critical industrial applications worldwide.
Our commitment to quality Rubber Sealing Stoppers relies on advanced polymer science and rigorous manufacturing standards to ensure zero-leakage performance in the most demanding environments.
Utilizing high-grade EPDM, Silicone, and Nitrile rubber to provide superior chemical resistance and thermal stability for every stopper produced.
Our CNC-machined molds ensure tolerances within microns, guaranteeing a perfect fit and consistent sealing pressure across all batches.
Every stopper undergoes pressure testing and surface analysis to eliminate defects and ensure compliance with international safety standards.
Engineered to withstand high-pressure fluctuations and extreme temperature cycles without losing elasticity.
Tailored rubber compounds to meet specific industry requirements, including food-grade and medical-grade certifications.
Accelerated sample delivery process allowing for fast iteration and validation of sealing designs.
| Rubber Material | Hardness (Shore A) | Temp Range (°C) | Tensile Strength | Oil Resistance | Certifications |
|---|---|---|---|---|---|
| Nitrile Rubber (NBR) | 60-90 | -40 to +120 | 15 MPa | Excellent | ISO 9001 |
| Silicone Rubber (VMQ) | 30-70 | -60 to +230 | 8 MPa | Moderate | FDA Grade |
| EPDM Rubber | 50-80 | -50 to +150 | 12 MPa | Poor | RoHS |
| Fluorocarbon (FKM) | 70-90 | -20 to +250 | 18 MPa | Superior | ASTM D2000 |
| Natural Rubber (NR) | 40-80 | -30 to +80 | 20 MPa | Moderate | ISO 9001 |
| Chloroprene (CR) | 50-80 | -40 to +110 | 14 MPa | Good | UL Listed |
| Butyl Rubber (IIR) | 40-70 | -50 to +120 | 10 MPa | Poor | REACH |
| Polyurethane (PU) | 80-95 | -40 to +100 | 30 MPa | Good | SGS Certified |
Developed medical-grade silicone stoppers that reduced leakage by 15% for a top European vaccine manufacturer.
Created high-temperature FKM stoppers for automotive engine components, extending part lifespan by 40%.
Engineered NBR stoppers for chemical transport vessels, ensuring zero permeation of volatile organic compounds.
Designed EPDM stoppers for municipal water filtration systems, providing permanent UV and ozone resistance.
Supplied custom-molded rubber stoppers for aircraft fuel lines, meeting strict FAA safety requirements.
Implemented food-grade rubber stoppers for beverage bottling lines, reducing contamination risks by 20%.
Sterile vial stoppers and medicine bottle seals produced in ISO cleanroom environments.
Heat and oil resistant stoppers for fuel systems, braking units, and transmission seals.
Corrosion-resistant rubber stoppers for acid tanks and laboratory reagent containers.
Lightweight, high-pressure seals for hydraulic systems and fuel line capping.
FDA-compliant rubber plugs for food storage and liquid packaging containers.
Heavy-duty EPDM seals for pipe capping and valve stoppers in water works.
Comprehensive automated optical inspection (AOI) ensuring every rubber stopper meets 100% dimensional accuracy.
Full batch tracking from raw polymer sourcing to final shipping, providing complete transparency for audits.
Meeting FDA, REACH, and RoHS standards for safe exportation to North American, European, and Asian markets.
For extreme heat, Fluorocarbon (FKM) is recommended as it can withstand temperatures up to 250°C while maintaining its structural integrity.
Yes, we offer medical and food-grade silicone and EPDM compounds that fully comply with FDA and USP Class VI requirements.
Our standard sample delivery time is 7 days, including mold design and polymer curing, ensuring fast prototype validation.
Yes, we can adjust the polymer cross-linking density to provide any hardness from Shore A 30 (soft) to Shore A 95 (hard).
We use precise compression molding and conduct air-leakage tests on a random sample from every production batch.
While we specialize in mass production, we offer flexible MOQ options for specialized prototypes and small-batch industrial orders.
Contact our engineering team for custom Rubber Sealing Stoppers tailored to your specific pressure and temperature requirements.