PVC Lubricants are essential additives used in PVC compounding and processing to reduce friction, improve melt flow, and prevent degradation during high-temperature processing. They are classified as internal lubricants, which reduce friction between polymer chains, and external lubricants, which reduce friction between the polymer melt and processing equipment surfaces. Proper lubrication ensures smooth processing, improved surface finish, and extended equipment life.

PE Wax (Polyethylene Wax) is a low molecular weight polyethylene that functions primarily as an external lubricant in PVC processing. It provides excellent mold release, improves surface gloss, and reduces friction between the PVC melt and metal surfaces of processing equipment. It is widely used in rigid PVC applications such as pipes, profiles, and fittings.

Paraffin Wax is a petroleum-derived external lubricant that improves the flow of PVC melt and reduces sticking to processing equipment. It is cost-effective and commonly used in combination with other lubricants to fine-tune the lubrication balance in rigid PVC formulations including pipes, profiles, and calendered sheets.

Stearic Acid serves as both an internal and external lubricant in PVC processing. As an internal lubricant, it reduces intermolecular friction within the polymer melt, improving flow and fusion. It also acts as a co-stabilizer when used alongside metal salt stabilizers, making it a multifunctional additive in PVC pipe, fitting, and profile formulations.

Ester Waxes are synthetic lubricants derived from the esterification of fatty acids and alcohols. They function primarily as internal lubricants, offering superior compatibility with PVC resin and providing excellent fusion control, improved clarity, and enhanced surface quality. They are particularly valued in applications requiring a fine balance between lubrication and fusion rate such as rigid profiles, transparent sheets, and high-gloss surfaces.

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