Ningbo Zhonggao Rubber & Plastic Manufacturing Co., Ltd. is one of the most reliable manufacturers and suppliers of glazing seals in China. The company has world-leading production equipment and strong manufacturing capabilities. Welcome to wholesale custom made glazing seals from our factory.
Material Properties
Wide temperature adaptability and weather resistance
• Using EPDM or silicone rubber material, it can work stably for a long time in extreme temperatures from -40℃ to +120℃;
• Resistant to ultraviolet rays, ozone and acid rain erosion;
• Outdoor service life is more than 10 years, suitable for severe cold or tropical climates.
Low friction and high resilience
• The surface friction coefficient is as low as 0.1-0.2, and the dynamic friction resistance is reduced by 40%-50%;
• The rebound rate is ≥90%, and it is not easy to produce permanent deformation after long-term compression, ensuring that the seal is long-lasting and effective.
Waterproof, dustproof and soundproof performance
• The cross-section design of the sealing strip forms multiple sealing lines, and the waterproof level can reach IP67;
• The porous structure effectively blocks the transmission of noise, and the sound insulation effect is improved by 20-30 decibels;
• It is suitable for scenes that require silent sealing, such as doors, windows, and glass curtain walls.
Tear and wear resistance
• The material has a tear resistance of 20-30 kN/m, and the wear rate under dynamic conditions is only 1/3 of that of ordinary rubber;
• The service life is 2-3 times longer than that of traditional sealing strips;
• Especially suitable for car windows or industrial equipment that are frequently opened and closed.
Environmental protection and easy processing
• Halogen-free, heavy metal-free, compliant with RoHS and REACH environmental standards;
• Can be hot-pressed, cut or bonded;
• Suitable for complex cross-sections and large-scale production needs.
Chemical corrosion resistance and aging resistance
• It has strong resistance to acids, alkalis, oils and most organic solvents;
• EPDM material is resistant to water and steam;
• Silicone rubber is resistant to high temperature and humidity, and maintains elasticity and sealing performance after long-term use.
Customized Services
We can customize materials, structures and functions according to working conditions to meet diverse scenarios:
Materials and Performance
EPDM rubber: water-resistant, steam-resistant, and aging-resistant, suitable for humid environments or glass curtain wall sealing.
Silicone rubber (VMQ): resistant to extreme temperatures (-70°C to 250°C), good biocompatibility, used for medical equipment or doors and windows of northern buildings.
Fluororubber (FKM): resistant to high temperatures (-20°C to 320°C), resistant to chemical corrosion, suitable for industrial equipment or chemical plants.
Flame-retardant rubber: UL94 V-0 certified, flame spread rate ≤40 mm/min, used for rail transit or building fireproof sealing.
Conductive rubber: embedded with conductive fillers, used for electromagnetic shielding or anti-static scenarios.
Other Customization Options
Cross-section and size: Rectangular, L-shaped, corrugated and other cross-sections can be customized, and thickness, length and width can be adjusted as needed to meet the needs of special window frames or glass panels.
Color and logo: Available in black, white, transparent and customized colors (such as light gray for architectural decoration), supporting laser engraving or barcode logo.
Functional enhancement: Surface coating (such as PET/PE) improves wear resistance, or pre-coated adhesive layer enables nail-free installation.
Certification and testing: Verified according to industry standards (such as ISO 9001, RoHS, 16949) to ensure compliance and safety.
FAQ
Q: What is your MOQ? Can I mix different styles to a start order?
A: Different size, different MOQ for different seal. But we can provide any stock as samples for you to check the quality first.
Q: Which field are your products applied to?
A: The major products supply the professional support and services for: automotive, garden irrigation equipment, hydraulic, pneumatic, coal, machinery, medical, hardware, sanitary ware, water equipment, and other industry.
Q: Is there the products tested before shipping?
A: Yes, of course. All of our products we all will has been 100% QC before shipping. We test every batch every day.
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