Custom Small MQ/VMQ/PVMQ Silicone O-Ring Waterproof Anti-Corrosion Rubber Seals

Various Micro and Small O-Type Waterproof and Anti-Corrosion Rubber Sealing Rings

Shaanxi Bomingyang Sealing Technology Co., Ltd. is a private enterprise in China specializing in the manufacturing of various silicone rubber products, including rubber O-rings, waterproof rings, rubber gaskets, and more. The company supplies O-rings made from various rubber materials, such as silicone rubber O-rings, fluoroelastomer O-rings, nitrile rubber O-rings, etc. It is an ideal supporting manufacturer for industries like small household appliances, machinery, toys, automotive, and bathroom fixtures. Custom orders based on drawings or samples are also available.

1. Physical and Mechanical Properties. At room temperature, the physical and mechanical properties of silicone rubber 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 applications.
5. Low-Temperature Performance. The glass transition temperature of silicone rubber is typically 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 radiation, providing excellent weather resistance without the need for additives.
7. Electrical Properties. Silicone rubber has outstanding insulation properties, with excellent resistance to corona and arc.
8. Temperature Range: -60°C (special down to -115°C) to 204°C (special up to 260°C)

Introduction to the Silicone Rubber Family:

Silicone rubber is divided into heat-curable and room-temperature curable types. Heat-curable types include methyl silicone rubber (MQ), methyl vinyl silicone rubber (VMQ, the most widely used and product-rich), methyl vinyl phenyl silicone rubber (PVMQ, resistant to low temperatures and radiation), as well as nitrile silicone rubber and fluorosilicone rubber, among others. MQ is a colorless, transparent, highly viscous linear polymer compound with a backbone composed of silicon and oxygen atoms, with methyl groups attached to the silicon atoms, and a molecular weight between 500,000 and 800,000. VMQ is a colorless, transparent, highly viscous linear polymer compound with a backbone composed of silicon and oxygen atoms, with methyl and vinyl groups attached to the silicon atoms, and a molecular weight between 500,000 and 800,000. PVMQ is obtained by introducing diphenyl siloxane segments or methylphenyl siloxane segments into the molecular chain of vinyl silicone rubber.

After-Sales Service:

All products from the company come with material certification; sincerity wins trust, patience gains understanding; details determine success, and service creates value. Service must be integrated throughout the entire enterprise, not limited to the final after-sales stage. Custom packaging and shipping methods are provided according to customer requirements, meeting different clients' cleanliness standards for products. Whenever you need it, I am ready to provide you with satisfactory products. If we are fortunate enough to become your supplier, you can rest assured about professionalism, quality, delivery, and service in all aspects. Cooperating with us will make us a reliable and hassle-free qualified supplier for you.