General purpose precipitated grade silicone rubber for molding serves as the foundational workhorse in the manufacturing of high-consistency elastomer components. The term "precipitated" refers to the specific manufacturing process of its primary reinforcing filler, precipitated silica, which provides an optimal balance of mechanical strength, durability, and cost-effectiveness. When processed through open mill mixing and compression molding, this material exhibits excellent flow characteristics, allowing it to fill complex mold cavities and capture fine details without requiring excessive pressure. Its predictable vulcanization behavior and moderate plasticity ensure that manufacturers can achieve consistent cycle times and high production yields, making it the go-to choice for mass-producing a vast array of industrial and consumer silicone products.
The physical and mechanical properties of this material are engineered to deliver reliable performance across a wide spectrum of applications. Typically offering a hardness range from 30 to 80 Shore A, it provides manufacturers with the flexibility to formulate products ranging from soft, compressible gaskets to rigid structural mounts. The cured rubber demonstrates impressive tensile strength, good tear resistance, and excellent elongation at break, ensuring that the final molded parts can withstand significant mechanical stress and deformation without failing. Furthermore, its low compression set characteristics guarantee that seals and O-rings will maintain their sealing force over prolonged periods of continuous compression, preventing leaks and system failures in dynamic environments.
Beyond its mechanical reliability, general purpose precipitated silicone rubber offers outstanding environmental and thermal resilience. It maintains its elasticity and physical integrity across a broad operating temperature range, typically from -50°C to over 200°C, making it suitable for both arctic conditions and high-heat industrial applications. Its inherent resistance to ozone, UV radiation, and weathering ensures long-term durability for outdoor components, while its excellent electrical insulation properties make it ideal for electronic enclosures and insulating caps. By combining versatile processability, robust mechanical performance, and exceptional environmental stability, this material remains the indispensable foundation for countless molding applications across the automotive, electronics, and general industrial sectors.
General purpose precipitated type silicone rubber for extrusion, plz check
MY HTV 316 series 
