Dongxing PVC Resin

Dongxing PVC resin is generally supplied as a white powder and serves as a raw material for manufacturing a wide range of plastic products, including construction materials, pipes and fittings, cable insulation, films, sheets, and industrial components.

This resin series offer good chemical resistance, electrical insulation, and processing versatility. Manufacturers can adjust its properties by incorporating suitable additives, such as plasticizers, heat stabilizers, lubricants, and fillers. These formulations support the production of both rigid and flexible PVC products for different industrial requirements.

Technical Specifications of Dongxing PVC

Technical Parameter	SG3	SG5	SG7	SG8
K-value	71–72	66–68	60–62	55–59
Viscosity number (mL/g)	127–135	107–118	87–95	73–86
Apparent density (g/mL)	≥0.45	≥0.48	≥0.50	≥0.50
Volatile matter (%)	≤0.30	≤0.40	≤0.40	≤0.40
Impurity particle count	≤16	≤16	≤20	≤20
Plasticizer absorption (g/100 g resin)	≥26	≥19	≥12	≥12
Residual vinyl chloride monomer (VCM, ppm)	≤5	≤5	≤5	≤5

Why Choose the Right PVC Resin Grade?

Selecting a suitable grade helps manufacturers align raw material properties with production requirements and finished-product specifications.

Dongxing PVC resin grades can be evaluated for applications ranging from rigid construction materials to flexible cable compounds and synthetic leather. SG5 is a common starting point for general-purpose rigid products, while SG3 may be considered for flexible formulations that require greater plasticizer absorption. SG7 and SG8 may be suitable for selected rigid applications that require specific processing characteristics.

For industrial procurement and international trade, buyers should compare verified technical specifications, batch quality, processing compatibility, and supply arrangements before making a purchasing decision. The final choice should reflect the actual requirements of the application rather than the grade designation alone.

Dongxing Suspension PVC vs. PVC Paste Resin

In addition to conventional suspension-grade PVC resin, market listings also identify Dongxing PVC paste resin PB1156. These product types serve different processing methods and should be evaluated separately.

Comparison Item	Suspension PVC Resin	PVC Paste Resin
Typical form	White powder	Fine powder that can be dispersed in plasticizers to form a paste
Main processing methods	Extrusion, injection molding, and calendering	Coating, dipping, paste molding, and related processes
Typical applications	Pipes, profiles, boards, cable products, and general molded parts	Synthetic leather, wallpaper, flooring, coatings, and foamed products
Key selection criteria	K-value, viscosity, apparent density, and processing behavior	Paste viscosity, rheology, dispersion, and finished-product requirements