Polyvinyl Chloride Paste Resin CAS 9002-86-2: The Versatile Base Material for Artificial Leather, Flooring, and Coatings

Manufacturers of artificial leather, flexible flooring, wallcovering, and industrial coatings share a common raw material requirement: a fine-particle, highly plasticizer-compatible resin that forms stable plastisol at room temperature and processes uniformly under heat. Polyvinyl Chloride Paste Resin is the material that makes all of these products possible. Without the right grade and the right supplier, production lines face viscosity inconsistency, surface defects, poor plasticizer absorption, and finished products that fail quality inspection before they reach the customer.

What Is Polyvinyl Chloride Paste Resin

Polyvinyl Chloride Paste Resin, widely known as PVC paste resin, carries CAS number 9002-86-2. It is produced by emulsion polymerization or micro-suspension polymerization of vinyl chloride monomer, resulting in ultra-fine PVC particles with average particle size between 1 and 2 micrometers. This fine particle size is what distinguishes paste resin from suspension-grade PVC and enables it to form stable, homogeneous plastisol when mixed with plasticizers such as DOP, DINP, or DOTP.

The K value of PVC paste resin, which indicates molecular weight and degree of polymerization, typically ranges from K62 to K75 depending on the grade. Lower K values such as K62 to K65 produce plastisols with lower melt viscosity and faster gelation, suited for thin-film applications such as flooring surface layers and coated fabrics. Higher K values such as K72 to K75 produce higher melt strength and better mechanical properties in the fused product, suited for artificial leather, foam products, and dip-coated industrial items.

Key Applications

Artificial Leather and Coated Fabrics

PVC plastisol resin for artificial leather is the largest single application for paste resin globally. PVC paste resin is compounded with plasticizers, stabilizers, and pigments to form a plastisol coating applied onto fabric substrates by knife-over-roll or calendar coating. The coated fabric is then passed through a fusion oven where the plastisol gels and fuses to form a durable, flexible PVC surface layer.

The performance of the finished artificial leather in terms of surface smoothness, flexibility at low temperature, abrasion resistance, and adhesion to the fabric substrate is determined primarily by the particle size distribution, K value, and plasticizer absorption rate of the paste resin. Manufacturers in Southeast Asia and South Asia producing artificial leather for footwear, furniture, automotive interiors, and garment applications consistently specify paste resin grades with tight particle size control and consistent K value to maintain production line stability and finished product consistency.

Flexible Flooring and Vinyl Wallcovering

PVC paste resin forms the surface and foam layers of flexible vinyl flooring, including luxury vinyl tile and sheet flooring produced by rotary screen printing and fusion processes. The paste resin is compounded into a plastisol, applied as a surface wear layer or foam base layer, and fused in a continuous oven line. Surface clarity, foam cell uniformity, and wear layer abrasion resistance all depend on the particle size and molecular weight consistency of the paste resin used.

For vinyl wallcovering production, paste resin is applied as a coating onto paper or fabric backing, providing the printable, durable surface layer that defines the product's appearance and performance. Wallcovering manufacturers in Turkey, Eastern Europe, and Southeast Asia use paste resin grades with good transparency and thermal stability to achieve consistent print quality and surface finish.

Industrial Coatings and Dip Coating

PVC paste resin is used in plastisol formulations for dip coating of metal components including tool handles, dishwasher baskets, wire shelving, and industrial equipment. The metal part is preheated, dipped into the plastisol bath, and fused in an oven to form a flexible, protective PVC coating. Adhesion to the metal substrate, coating thickness uniformity, and surface smoothness are all functions of plastisol viscosity, which is directly controlled by the paste resin particle size and K value selection.

Why Resin Quality Determines Your Production Outcome

Manufacturers who have experienced batch-to-batch viscosity variation in their plastisol understand how quickly inconsistent paste resin quality disrupts production. Plastisol that is too viscous clogs coating heads and produces uneven film thickness. Plastisol that is too thin runs under the knife and produces coating weight below specification. Both problems result in production waste, line stoppages, and finished product rejection that costs significantly more than the price difference between quality-controlled and uncontrolled resin sources.

As a reliable emulsion PVC resin supplier, EastChem provides Polyvinyl Chloride Paste Resin CAS 9002-86-2 with consistent particle size distribution, controlled K value within specification range, and low residual moisture content to ensure stable plastisol viscosity and predictable fusion behavior in your production process.

Why EastChem

EastChem has supplied PVC paste resin and construction chemical products to manufacturers and distributors in over 150 countries since 2012. Our products are certified under ISO 9001, ISO 14001, and ISO 45001 systems and meet REACH compliance requirements for European market access. We supply standard grades including K62 to K65 and K72 to K75 in 20 kg bags and 1000 kg jumbo bags to suit your production volume and logistics requirements.

Contact EastChem today to request a sample of PVC paste resin, technical data sheet, or factory pricing for your artificial leather, flooring, or coating application.