For businesses in the plastics industry, particularly those working with PVC, selecting the correct impact modifier is paramount to achieving desired product performance and longevity. Among the widely used options, Chlorinated Polyethylene (CPE) 135A stands out for its excellent balance of properties. This article aims to guide procurement managers and R&D scientists in understanding CPE 135A and making informed purchasing decisions. As a leading supplier and manufacturer, we aim to provide clarity on this essential chemical raw material.

What is CPE 135A and Why is it Important?
CPE 135A is a specialized polymer additive derived from high-density polyethylene through a chlorination process. Its molecular structure imparts a unique combination of characteristics, making it an exceptional impact modifier and processing aid for rigid PVC. Its primary function is to absorb impact energy, preventing cracks and breaks in PVC products, especially under stress or at lower temperatures. This dramatically improves the overall toughness and durability of the final product.

Key Properties to Consider When Buying CPE 135A
When you search for a CPE 135A supplier, certain technical specifications are critical. Typical properties of CPE 135A include:

  • Chlorine Content: Generally around 35%, which influences its compatibility and performance characteristics.
  • Heat of Melting: A low heat of melting is beneficial for processing.
  • Volatile Matter: Low volatile content ensures product stability and reduces processing issues.
  • Tensile Strength and Elongation: These indicate the material's ability to withstand stress and deform before breaking.
  • Shore Hardness: Affects the flexibility and rigidity imparted to the PVC compound.

Understanding these metrics from a reputable manufacturer’s technical data sheet is crucial for ensuring the CPE 135A you purchase meets your specific application requirements.

Applications Driving Demand for CPE 135A
The versatility of CPE 135A makes it a highly sought-after additive across various sectors. Its most significant applications include:

  • Rigid PVC Profiles: Enhancing window profiles, door frames, and other construction extrusions for improved impact resistance and weatherability.
  • PVC Pipes and Fittings: Increasing the toughness and durability of water pipes, sewage systems, and industrial piping.
  • PVC Sheets and Siding: Providing superior impact strength and aesthetic durability for building exterior components.
  • Wire and Cable Jacketing: Leveraging its flame retardant and oil resistance properties for protective insulation.
  • Other Plastic Modifications: Used as a toughening agent for ABS, PP, and other plastics, broadening its utility.

For procurement managers, sourcing from a reliable CPE 135A manufacturer in China can offer significant cost advantages while maintaining high-quality standards.

Sourcing CPE 135A: What to Look For in a Supplier
When seeking to buy CPE 135A, prioritize suppliers who can demonstrate consistent product quality, reliable supply chains, and competitive pricing. Look for manufacturers with robust quality control measures and a proven track record in exporting. Understanding the total cost, including shipping and import duties, is also essential for making a sound purchase. Engaging with a dedicated CPE 135A supplier ensures you not only get the material but also the technical support needed to optimize its use in your formulations.

In conclusion, CPE 135A is an indispensable component for enhancing the performance of PVC products. By focusing on key properties and partnering with a trusted manufacturer, you can ensure your sourcing efforts lead to superior product outcomes and operational efficiency.