PVC Matting Resin SG-3

Polyvinyl chloride (PVC) resin appears as a white thermoplastic powder produced by the suspension polymerization process. It is insoluble in water, gasoline, and ethanol, but soluble in ketones, dichloromethane, and aromatic hydrocarbons. PVC resin features good chemical resistance, corrosion resistance, and dielectric properties. With appropriate additives (e.g., plasticizer and stabilizer), it can be converted into a wide range of finished products with tailored physical and mechanical properties. Based on the degree of polymerization, PVC suspension resin is categorized into 8 general grades, ranging from SG-1 to SG-8.

Matting SG-3

SG-3 has an average degree of polymerization of around 1300 (1251-1370). Compared with SG-5, it features higher molecular weight and viscosity, making it more suitable for applications requiring enhanced flexibility, elasticity and mechanical performance.

Matting SG-3 is a modified SG-3 grade added matting agent, featuring a smooth, matte appearance while maintaining all properties of SG-3.

Key Advantages

Higher Molecular Weight & Viscosity vs SG-5, Suitable for Flexible Products

Enhanced Flexibility & Elasticity

Smooth, Matte Appearance without Additional Additives

Technical Specifications

Item of Analysis	Unit	Value
Degree of Polymerization		1251~1370
K Value		71~72
Viscosity	ml/g	127~135
The Number of Impurities and Foreign Particles	pcs ≤	16
Volatile Matter	% ≤	0.3
Bulk Density	g/ml ≥	0.45
Residue on 250µm Sieve Screenings	% ≤	1.6
Residue on 63µm Sieve Screenings	% ≥	97
The Number of “Fish Eyes”	pcs/400cm² ≤	20
Plasticizer Absorption of 100g PVC resin	g ≥	26
Whiteness (160℃, 10min)	% ≥	78
VCM Residual	µg/g ≤	5
Water Extract Conductivity	µs/(cm·g) ≤	5

Typical Applications