Polyvinyl Chloride (PVC) is a versatile polymer widely used in numerous applications, from construction materials like pipes and profiles to wire insulation and films. However, PVC is inherently sensitive to heat and light. During processing at elevated temperatures (typically between 180°C and 200°C) and throughout its service life when exposed to UV radiation or heat, PVC can undergo degradation, primarily through dehydrochlorination. This process releases hydrogen chloride (HCl), which auto-catalytically accelerates further degradation, leading to discoloration, loss of mechanical strength, and embrittlement.

To counteract this degradation and ensure the processability and long-term performance of PVC products, heat stabilizers are indispensable additives. Among the various types of stabilizers available, Lead Based PVC Stabilizers have historically been valued for their excellent performance characteristics, particularly in demanding applications.

NINGBO INNO PHARMCHEM CO.,LTD. offers high-quality Flake Lead Based PVC Stabilizers designed to provide superior thermal stability and enhance the overall processing and end-use properties of PVC compounds. Our carefully formulated stabilizers are delivered in a convenient flake form, ensuring ease of handling and dispersion within the PVC matrix.

The primary function of a Lead Based PVC Stabilizer is to effectively scavenge the HCl released during processing, preventing the autocatalytic degradation chain reaction. Beyond this crucial role, these stabilizers contribute significantly to several other aspects of PVC processing and product quality. They offer excellent thermal stability, which is critical for surviving the high temperatures encountered during extrusion, injection molding, and calendering without significant degradation. This ensures minimal color change and retention of physical properties during manufacturing.

In addition to thermal stability, our Flake Lead Based Stabilizer provides beneficial lubricity. This helps to reduce friction between the PVC melt and the processing equipment surfaces, facilitating smoother flow, reducing melt viscosity, and lowering energy consumption. Improved lubricity also contributes to achieving better surface finish and higher output rates during processing.

Furthermore, our stabilizer imparts enhanced weather resistance to the final PVC products. For applications exposed to outdoor environments, such as pipes and profiles, resistance to UV radiation and moisture is essential for maintaining structural integrity and appearance over time. Lead stabilizers offer inherent UV screening properties that contribute to the longevity of the finished article.

The product exhibits multi-functional characteristics, integrating the advantages of thermal stability, lubricity, and weather resistance into a single additive. Its high efficiency means that relatively low dosages are required to achieve significant improvements in performance. The flake form is designed to be dust-free, improving handling safety and simplifying compounding processes. During PVC processing, the use of our complex lead stabilizer helps ensure proper melting and melt homogeneity, leading to products with improved aging resistance and excellent surface gloss.

Our Flake Lead Based PVC Stabilizer is widely applicable across various PVC product segments. It is particularly effective in the manufacturing of PVC cables and wires, providing the necessary heat stability for extrusion and ensuring the long-term insulation integrity. It is also extensively used in diverse types of pipes, including soil and sewer pipes, foam core pipes, land drainage pipes, pressure pipes, corrugated pipes, and cable ducting, as well as corresponding fittings. The stabilizer's performance ensures that these pipes meet rigorous standards for mechanical strength, durability, and service life. Furthermore, it is suitable for window and technical profiles, including foam profiles, contributing to their rigidity, weatherability, and aesthetic appeal.

Key technical parameters for our Flake Lead Based PVC Stabilizer include its appearance as a white flake, a lead content (measured as PbO) typically ranging from 38% to 42%, a relative density between 2.1 and 2.3 at 25°C, and a moisture content of less than or equal to 1.0%. A recommended dosage of 5-6 PHR (parts per hundred parts of resin) is generally effective, though specific formulations may require adjustment based on compounding ingredients and processing conditions.

Maintaining strict quality control is paramount in the production of chemical auxiliaries for the plastics industry. NINGBO INNO PHARMCHEM CO.,LTD. adheres to stringent quality management systems to ensure the consistency and performance of our products. Our stabilizers are produced using reliable processes to guarantee their efficacy in your PVC formulations. The consistent composition and physical form of our flake stabilizer ensure reliable performance batch after batch, which is critical for manufacturers aiming for uniform product quality.

The selection of the appropriate heat stabilizer is a critical decision in PVC formulation. It impacts not only the processing behavior but also the long-term properties, cost, and regulatory compliance of the final product. While the chemical industry continues to innovate with new stabilizer systems, Lead Based Stabilizers remain a technically sound option for specific, demanding applications where their unique balance of properties provides optimal performance.

For businesses seeking to enhance their PVC product lines with high-performance additives, selecting a trusted source for essential auxiliaries is paramount. As a dedicated manufacturer and supplier in the chemical industry, NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing high-quality chemical auxiliaries. We offer competitive price structures for bulk quantities of our Flake Lead Based PVC Stabilizer, ensuring cost-effectiveness without compromising performance. Companies looking to buy or purchase reliable PVC stabilizers can depend on our consistent product quality and efficient supply chain, backed by technical expertise and a focus on meeting customer needs for various PVC applications globally.