For formulators in the adhesives and sealants industry, understanding the properties and sourcing of key raw materials is fundamental to product development and manufacturing efficiency. Hydroxyl-terminated polydimethylsiloxane, widely recognized as OH Polymer or by its CAS number 70131-67-8, plays an indispensable role as a primary raw material in the production of silicone sealants. As a prominent manufacturer and supplier in China, we specialize in providing high-purity OH Polymer that empowers sealant producers to create advanced, high-performance products.

Silicone sealants are prized for their exceptional weather resistance, UV stability, flexibility over a wide temperature range, and excellent adhesion to a variety of substrates. The hydroxyl functionality of the OH Polymer is central to these properties. It allows the polymer to undergo condensation reactions with cross-linking agents (such as silanes) and catalysts, facilitating the curing process at room temperature. This makes it ideal for one-component and two-component RTV (Room Temperature Vulcanizing) silicone sealants used extensively in construction, automotive, and electronic applications. When you buy this essential component, ensure its hydroxyl content is suitable for your curing system.

The choice of OH Polymer grade significantly influences the final characteristics of the sealant, including its viscosity, tack-free time, tensile strength, and elongation. Manufacturers typically offer various viscosity grades to cater to different application needs. Lower viscosity grades might be preferred for sealants requiring easier extrusion, while higher viscosity grades can contribute to improved sag resistance in the uncured state. As a reliable supplier, we offer a range of OH Polymer products to meet diverse formulation requirements. We can provide detailed technical specifications to help you select the optimal grade for your specific sealant formulation.

The economic aspect of sourcing these materials is also a major consideration for any business. Competitive price and consistent availability are key. By partnering with us, a direct manufacturer in China, you can secure a stable supply of high-quality OH Polymer at attractive rates. We understand the importance of cost-effectiveness in the competitive sealant market. Our production capabilities ensure that we can meet demand for both R&D quantities and large-scale industrial orders, making us a dependable supplier for your ongoing needs.

To effectively purchase OH Polymer for your silicone sealant production, it is advisable to work with experienced chemical suppliers. We are committed to providing not only superior products but also valuable technical support and responsive customer service. We invite you to contact us to discuss your specific formulation challenges and to obtain a quotation for our hydroxyl silicone oil. Leverage our expertise as a leading manufacturer in China to enhance your silicone sealant products.