WSD CHEMICAL’s full series of PVC lubricants are specially formulated processing additives designed to regulate friction performance during PVC high-temperature manufacturing, preventing material adhesion, reducing energy consumption and improving final surface quality. PVC, being thermally sensitive, generates both internal friction between polymer chains and external friction between melt and metal equipment surfaces during extrusion, calendering and injection molding. Our lubricant system precisely balances internal and external lubrication effects, avoiding common defects such as uneven plasticization, die buildup, yellowing and sticking that frequently occur in production.

Our core product portfolio covers both internal and external lubrication grades, including stearate series, Fischer-Tropsch waxes, oxidized polyethylene waxes, ester-based lubricants such as G60, G70, monoglyceride and specialized compound lubricant packages. Internal lubricants show high compatibility with PVC molecules, penetrating between polymer chains to reduce melt viscosity, lower internal friction heat and promote uniform plasticization. External lubricants migrate to the melt surface, forming a thin protective layer between the hot PVC and equipment metal walls, effectively preventing adhesion, delaying excessive fusion and extending continuous production runtime.

These lubricants are widely used in PVC pipes, profiles, transparent sheets, foamed boards, cable compounds and injection-molded fittings. Our technical team can adjust internal/external lubrication ratios according to different processing equipment, screw speed and product requirements, helping manufacturers reduce processing torque, boost extrusion speed, minimize downtime for mold cleaning and achieve smooth, glossy finished surfaces.