Polyvinyl chloride (PVC suspension resin K-67)

Description

Product Overview
Polyvinyl chloride (PVC suspension resin K-67) is a high-molecular-weight thermoplastic polymer produced via suspension polymerization, offering an optimal balance of processability and mechanical strength. It is primarily used in extrusion and injection molding applications for rigid profiles, pipes, fittings, and technical parts. The key value proposition lies in its consistent K-value of 67, which ensures superior melt flow stability, impact resistance, and dimensional accuracy for high-throughput industrial lines. Strategically, it serves as a backbone material for construction, automotive, and electrical sectors, where reliable supply and batch-to-batch uniformity directly impact operational yield and total cost of ownership.

Key Specifications & Technical Characteristics

• Chemical composition: Polyvinyl chloride (PVC) homopolymer

• Purity level: ≥ 99.5% PVC content, residual VCM ≤ 1 ppm

• Physical form: Fine white powder

• Particle size: Mean 100–150 µm, bulk density 0.52–0.56 g/cm³

• K-value: 67 ± 1 (ISO 1628-2)

• Volatile matter: ≤ 0.3%

• Packaging: 25 kg paper/plastic laminated bags, 1 MT jumbo bags, or bulk truck/tanker

• Shelf life: 12 months in dry, cool (≤30°C), well-ventilated conditions

Core Industrial Applications

• Construction: Rigid pipes, conduits, window profiles, and siding – K-67 provides high stiffness and UV resistance for long service life.

• Automotive: Interior trim, underbody coatings, and cable insulation – outperforms lower K-value grades with better impact retention at low temperatures.

• Electrical: Wire jacketing and switchgear casings – superior dielectric strength and flame retardance meet IEC 60332 standards.

• Advantage: Lower gelation temperature reduces energy consumption by 8–12% versus general-purpose resins, while narrower molecular weight distribution minimizes die swell and scrap rates.

Competitive Advantages

• Quality consistency: ISO 9001:2025 certified; SPC-controlled batches with <0.2% variation in K-value

• Supply reliability: Dual production lines with 50,000 MT annual capacity; safety stock of 2,000 MT maintained

• Logistics capability: Direct shipping from three regional hubs (Asia, Europe, GCC) to 40+ countries

• Price competitiveness: Competitive $/MT + optional hedging contracts for large-volume buyers

• Sustainability: 30% recycled content option available; mercury-free catalyst process; REACH and RoHS compliant

• Technical support: Full SDS, processing troubleshooting guide, and free lab-scale sample evaluation

Commercial & Supply Information

• Minimum order quantity (MOQ): BULK 20MT (20 metric tons) per grade per shipment

• Loading capacity: 27 MT per 20’ dry container (18 pallets – 25 kg bags) or 25 MT per bulk container liner