SIL Silicone Rubber PVMQ Sealing Rings EPDM/FKM/NBR/VITON/AFLAS/HNBR, FDA Food Grade SIL Silicone Sealing Rings O-Ring Manufacturer, NBR O-Ring FDA Certified Food Grade Sealing Rings, EPDM O-Ring FDA Medical Grade USP Drinking Water WRAS Sealing Rings, EPDM White Sealing Rings O-Ring FDA Food Grade SIL/NBR/FKM

Company Introduction:
Suzhou Yongxin Technology is a supplier of sealing components in motion and control systems, providing sealing solutions for transmission control, automation equipment, and aviation. We sell various seals, hydraulic, pneumatic, and fluid control products and components. In terms of seals, Yongxin offers hydraulic and pneumatic sealing products, including dynamic seals, static seals, sealing rings, oil seals, gaskets, packing, etc.

Performance Introduction:
1. Physical and Mechanical Properties. The physical and mechanical properties of silicone rubber at room temperature are inferior to those of general-purpose rubber, but at high temperatures of 150°C and low temperatures of -50°C, its physical and mechanical properties surpass those of general-purpose rubber.
2. Oil and Chemical Resistance. Ordinary silicone rubber has moderate resistance to oil and solvents.
3. Gas Permeability. At room temperature, the permeability of silicone rubber to gases such as air, nitrogen, oxygen, and carbon dioxide is 30-50 times higher than that of natural rubber.
4. Physiological Inertness. Silicone rubber is non-toxic, odorless, and tasteless, does not adhere to human tissues, has anticoagulant properties, and causes minimal reaction in body tissues. It is particularly suitable for medical materials.
5. Low-Temperature Performance. The glass transition temperature of silicone rubber is generally between -70°C and -50°C, with special formulations reaching -100°C, indicating excellent low-temperature performance. This is highly significant for the aerospace and aviation industries.
6. Weather Resistance. The Si-O-Si bonds in silicone rubber are highly stable against oxygen, ozone, and ultraviolet light, providing excellent weather resistance even without additives.
7. Electrical Properties. Silicone rubber has excellent insulation properties, as well as outstanding corona and arc resistance.
8. Temperature Range: -60°C (special down to -115°C) to 204°C (special up to 260°C)

Silicone Rubber Family Introduction:
Silicone rubber is divided into heat-curing and room-temperature curing types. Heat-curing types include methyl silicone rubber (MQ), methyl vinyl silicone rubber (VMQ, the most widely used and with the most product grades), and methyl vinyl phenyl silicone rubber PVMQ (low-temperature and radiation resistant). Others include nitrile silicone rubber and fluorosilicone rubber. MQ is a colorless, transparent, highly viscous, plastic linear polymer compound with a backbone composed of silicon and oxygen atoms, and methyl groups attached to the silicon. Its molecular weight ranges from 500,000 to 800,000. VMQ is a colorless, transparent, highly viscous, plastic linear polymer compound with a backbone composed of silicon and oxygen atoms, and methyl and vinyl groups attached to the silicon. Its molecular weight ranges from 500,000 to 800,000. PVMQ is obtained by introducing diphenyl siloxane or methylphenyl siloxane segments into the molecular chain of vinyl silicone rubber.

After-Sales Service:
Yongxin Seals provides material certificates for all products, ensuring customers can buy and use with confidence and without worries! We customize packaging and shipping methods according to customer requirements, meeting different customers' cleanliness requirements for products. We also welcome inquiries and cooperation from trading partners!

Technical Support:
Yongxin Seals offers technical support in the sealing field, with an engineering team boasting over 10 years of experience, ready to help customers solve product sealing design issues, material selection challenges, and sealing aging test problems. With strong technical capabilities, we can provide rational suggestions based on different working conditions and offer targeted product selection. Additionally, we professionally provide products with special performance requirements such as high wear resistance, high and low temperature resistance, chemical resistance, corrosion resistance, vacuum resistance, water vapor resistance, UV resistance, aging resistance, refrigerant resistance, and natural gas resistance. We welcome inquiries from peers and those in need of seals.