Lubricants

Acrylic processing aid

The addition of processing aid significantly reduces fusion time and enhances melt homogeneity, enabling higher processing temperatures and increased production rates while ensuring excellent surface quality. This low molecular weight additive improves melt strength and reduces plate-out. Key benefits include eliminating melt fractures, enhancing surface finish, minimizing die buildup, increasing production capacity, reducing gels, improving processability, and facilitating the use of recycled or regrind resins.

Stearic acid

Stearic acid is a versatile additive in PVC processing, functioning as both an internal lubricant (0.2-0.5 phr) to improve melt flow and reduce viscosity and an external lubricant (0.5-1.0 phr) to prevent adhesion to processing equipment. It enhances fusion characteristics in rigid PVC applications like pipes and profiles while improving mold release in flexible PVC products such as cables and films. This cost-effective additive works synergistically with calcium/zinc stabilizers, reduces plate-out, and optimizes energy efficiency during processing, though excessive use (>1.0 phr) should be avoided to prevent blooming or surface defects.

Pe wax (polyethylene wax)

Polyethylene Wax (PE Wax)

is a versatile additive that enhances processing and performance in plastics like PVC, PP, and rubber. It acts as an effective lubricant, improving mold release, surface gloss, and flow properties while offering excellent heat and chemical resistance. Widely used in PVC products, masterbatches, coatings, adhesives, and more, PE Wax provides both internal and external lubrication for optimal processing efficiency.

OPE Wax (Oxidized PE Wax)

Oxidized polyethylene wax is a wax made by the oxidation process of polyethylene wax. Oxidized polyethylene wax can significantly improve its compatibility with fillers, pigments, PVC, and other resins, and also has lubrication and coupling effects. Oxidized polyethylene wax has low viscosity, a high softening point, strong wear resistance, excellent thermal stability, and low volatility at high temperatures.

Paraffin Wax

Paraffin wax is a white or colorless soft solid derived from petroleum, consisting of saturated hydrocarbons (C20-C40). With a typical melting point between 46-68°C, it offers excellent water resistance and thermal insulation properties. This versatile wax is widely used in candle making, cosmetics (lipsticks/creams), food packaging, rubber processing, and as a lubricant in PVC applications. Its low cost, odorless nature, and good stability make it particularly valuable for coatings, waterproofing, and as a processing aid in various industries

Calcium stearate

Calcium stearate is a white, odorless powder widely used as a multifunctional additive in polymers and other industries. As a metallic soap of stearic acid, it serves as an effective heat stabilizer and lubricant in PVC processing, where it controls melt flow and prevents degradation. This cost-effective material also functions as a release agent in plastic and rubber production, and as an anti-caking agent in pharmaceuticals and cosmetics. With excellent thermal stability (melting point ~150°C) and hydrophobic properties, calcium stearate is particularly valuable for rigid PVC applications like pipes and profiles, while also finding use in paper coatings, construction materials, and food-grade applications.

Zinc stearate

Zinc stearate is a white hydrophobic powder (Zn(C₁₈H₃₅O₂)₂) that functions as a lubricant, release agent, and secondary heat stabilizer (0.1-0.5 phr) in PVC, synergizing with calcium stearate to neutralize HCl. It improves processing in plastics/rubber by reducing friction and adhesion, while its water-repellent properties make it valuable in cosmetics (texture enhancer) and pharmaceuticals (tablet coatings), with a low melting point (~120°C) and FDA-approved options available.

Applications.