PVC SG5 Resin K68-66 | PVC Resin K67

PVC SG5 is a general-purpose rigid polyvinyl chloride resin produced via suspension polymerization. It has an average polymerization degree of 950–1100, a K-value of 66-68, and a viscosity ranging from 107 to 118 ml/g. Due to its moderate molecular weight, good processing flowability, and stable physical properties, SG5 can be widely used in the production of pipes, profiles, sheets, door and window frames, panels, as well as a variety of industrial products.

Various Brands of PVC SG5 For Sale

As a leading supplier and exporter, we provide a stable and reliable supply of PVC SG5 from well-established manufacturers, including Erdos, Zhongtai Chemical, Xinfa, Yihua Group, Xinjiang Tianye Group, Beiyuan, Junzheng, and other major manufacturers.

Xinfa PVC resin for Sale — Xinfa PVC SG5

Item		PVC SG5
Viscosity No. ml/g		118-107
K value		68-66
Polymerizing Index		1135-981
Number of impurity particles		16max
Volatile Matter, %		0.4max
Apparent Density, g/ml		0.48min
Number of Fish Eye (/400 cm2)		20max
Plasticizer absorption of 100g resin, g		19min
VCM Residue, ppm		5max
Whiteness(160°C,10min), %		75min
Particle size	≥0.25mm	2.0max
	≥0.063mm	95min

Performance Characteristics

Stable Processing Performance and Wide Applicability. The product offers stable thermoplastic behavior and smooth processing performance. It adapts well to extrusion, injection molding, calendering, and blow molding processes, making it highly suitable for the production of pipes, profiles, fittings, and sheets across a wide range of equipment and operating conditions.
Excellent Mechanical Strength. With a moderate degree of polymerization, PVC SG5 provides good rigidity and strength. Rigid products made from this resin demonstrate reliable tensile strength, flexural strength, and impact resistance, meeting the performance requirements of construction materials and industrial applications.
Good Formulation Flexibility. This grade shows strong compatibility with common PVC additives, including stabilizers, impact modifiers, processing aids, and fillers. It readily accepts fillers such as calcium carbonate, allowing cost-effective formulations while maintaining stable mechanical performance.
Superior Chemical and Corrosion Resistance. PVC resin sg5 resists water, salt solutions, and weak acids and alkalis. It does not rust or absorb moisture and remains stable in contact with oils and alcohols, making it suitable for chemical pipelines, industrial panels, and corrosion-resistant containers.
Excellent Electrical Insulation. Products manufactured from PVC SG5 exhibit excellent electrical insulation and dielectric properties. The material maintains stable performance under normal humidity and temperature conditions, supporting its widespread use in cable protection and electrical applications.
Good Flame Retardancy. It is naturally flame-retardant and self-extinguishing. It burns slowly, limits flame spread, and produces relatively low smoke, making it a safe choice for building materials and applications with fire safety requirements.
Excellent Weather Resistance and Dimensional Stability. PVC SG5 maintains dimensional stability under varying environmental conditions. With appropriate formulation design, products can achieve enhanced UV resistance and long-term outdoor durability.
Hygiene and Environmental Advantages. When formulated with environmentally friendly stabilizer systems, PVC SG5 can meet food-contact and drinking water standards and comply with major environmental regulations such as RoHS and REACH. The resin is recyclable, supporting sustainable material use.

Main Applications

As a widely used general-purpose PVC resin with a well-balanced performance profile, PVC resin sg5 delivers an excellent combination of mechanical strength, processing flexibility, and chemical corrosion resistance. It serves as a core raw material for rigid PVC products and the building materials industry, while also supporting selected flexible applications. With its broad applicability and stable performance, this material is the most commonly used base resin in the PVC product family and holds the largest market share worldwide.

PVC SG5 is suitable for a wide range of applications, including construction pipes such as water supply pipes, drainage pipes, and chemical pipelines; PVC profiles and door and window frames; rigid sheets and boards; wire and cable insulation and sheathing; as well as injection-molded industrial components.