Polyvinyl Chloride (PVC) is a widely used polymer, but its processing requires careful management to prevent thermal degradation. Zinc stearate plays a pivotal role in this regard, serving as a key component in both heat stabilization and lubrication systems for PVC. NINGBO INNO PHARMCHEM CO.,LTD. provides premium zinc stearate essential for manufacturers aiming for high-quality, durable PVC products.

The primary function of zinc stearate in PVC is as a heat stabilizer. During the high-temperature processing of PVC, dehydrochlorination can occur, leading to discoloration and a breakdown of the polymer chains. Zinc stearate acts as an HCl scavenger, neutralizing the released hydrochloric acid and preventing autocatalytic degradation. While it’s effective, it’s often used in conjunction with other stabilizers, such as calcium stearate, to create synergistic effects and prevent issues like 'zinc burning,' which can cause initial discoloration. The plastic additive zinc stearate benefits include enhanced thermal stability and improved initial color, crucial for a wide range of PVC applications like pipes, profiles, and films.

Beyond stabilization, zinc stearate also functions as an excellent lubricant for PVC processing. It reduces friction between the PVC resin particles and processing equipment, facilitating smoother extrusion and molding. This lubricant action improves throughput and ensures a more uniform product surface. When manufacturers consider what is zinc stearate used for in industry, its dual functionality in PVC processing—stabilizer and lubricant—stands out as a significant advantage.

NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to supplying zinc stearate that meets rigorous industry standards. We enable manufacturers to produce PVC products that not only meet performance requirements but also exhibit excellent aesthetic qualities. Whether you are looking for zinc stearate lubricant for plastics or a reliable heat stabilizer, our products are formulated to deliver consistent results, ensuring your PVC formulations achieve optimal stability and processing efficiency.