Polyvinyl Chloride (PVC) Suspension Resin is one of the most versatile and indispensable basic raw materials in the global plastic processing, building materials and new material manufacturing industries. Different SG series PVC resins have obvious differences in molecular weight, polymerization degree, melt viscosity and processing characteristics, which directly determine the performance, applicability and finished product quality of plastic products. Therefore, scientific and accurate selection of PVC resin grades is a crucial link for processing enterprises to optimize production efficiency, improve product quality and control comprehensive production costs.
As a professional and reliable PVC resin manufacturer and supplier in China, Qingdao Haiwan Specialty Chemicals Co., Ltd. focuses on the R&D and production of high-quality suspension PVC resin, with a complete product specification system. The company independently produces full-series SG-grade PVC products, covering SG-3, SG-5, SG-7 and SG-8, and includes multiple mature mainstream models such as HS-1300, HS-1000R, HS-1000F, HS-800 and HS-700. All products adopt advanced suspension polymerization technology, with stable polymerization degree, uniform particle size and excellent processing performance, meeting the differentiated production needs of various downstream industries.
Each grade of Haiwan PVC resin has precise market positioning and exclusive application scenarios. The high-molecular-weight SG-3 model (HS-1300) has high toughness, good elasticity and strong tensile resistance, and is specially suitable for processing high-elastic soft plastic products, flexible rubber hoses, plastic auxiliary accessories and other high-flexibility products. The SG-5 series, including HS-1000R and HS-1000F, is the most universal and widely used general-purpose PVC resin, with balanced physical properties, and is widely used in building plastic pipes, architectural profiles, daily plastic necessities, industrial plastic parts and conventional plastic molding processing.
In contrast, low-molecular-weight SG-7 (HS-800) and SG-8 (HS-700) PVC resins feature low melt viscosity, excellent fluidity and high transparency. They are extremely suitable for high-precision injection molding processing, transparent plastic parts, food-grade packaging materials, thin-wall plastic products and other high-demand fields. For downstream processing enterprises, selecting the matching Haiwan PVC resin grade according to product positioning can effectively avoid material waste and product performance defects, greatly improve production yield, and realize efficient and low-cost standardized production.
