For procurement professionals in the chemical industry, sourcing high-quality additives like Chlorinated Paraffin 70 (CP-70) is critical for ensuring product performance and compliance. CP-70, with its distinctive white powder appearance and high chlorine content (around 70%), is a cornerstone ingredient in many formulations, prized for its flame-retardant and plasticizing properties. This guide is designed to assist chemical buyers in understanding what to look for when purchasing CP-70, from key specifications to finding reliable manufacturers and suppliers.

Understanding the Key Specifications of CP-70

When you plan to buy Chlorinated Paraffin 70, it's essential to be aware of its critical specifications to ensure it meets your application requirements. The most important parameters typically include:

• Chlorine Content: Typically around 70% ± 2%. This is the defining characteristic that dictates its efficacy as a flame retardant.
• Appearance: White to pale yellow powder or granules. Consistency in appearance is an indicator of product quality.
• Softening Point: Usually in the range of 90-120°C. This affects its handling and incorporation into formulations.
• Thermal Stability: A measure of its decomposition temperature and resistance to producing HCl at elevated temperatures. High thermal stability is crucial for processing.
• Acid Value: A low acid value indicates purity and reduced corrosivity.
• Loss on Heat/Moisture Content: Should be minimal to ensure product concentration and stability.

Manufacturers and suppliers should readily provide technical data sheets (TDS) detailing these specifications. Always compare these against your application needs.

Diverse Applications Driving Demand for CP-70

The versatility of CP-70 fuels its widespread use across several key industries:

• Flame Retardant: Its primary role is in enhancing the fire resistance of plastics (like PVC, ABS, polyethylene, polystyrene, polyester, epoxy resins), rubber, coatings, and inks. This is vital for safety compliance in construction, automotive, and electronics sectors.
• Plasticizer: CP-70 also acts as a secondary plasticizer in PVC and rubber compounds, improving flexibility, processability, and low-temperature performance.
• Modifier: It serves as a modifier in paper making and as a surface treatment agent for textiles, adding functional properties.
• Specialty Uses: Applications extend to ecological boards, polyolefins, and even dry powder extinguishing agents.

For chemical buyers, identifying the specific application requirements will guide the selection of the most suitable grade of CP-70.

Finding Reliable Manufacturers and Suppliers

Securing a consistent supply of high-quality CP-70 requires partnering with reputable manufacturers and suppliers. When sourcing, consider the following:

• Manufacturer Credentials: Look for suppliers with established production facilities, robust quality control systems, and a proven track record. Companies based in China are often significant global suppliers, offering competitive pricing.
• Product Certifications: Ensure the supplier can provide relevant certifications and compliance documents, such as SGS reports or ISO certifications.
• Technical Support: A good supplier will offer technical assistance to help you select the right product and optimize its use in your formulations.
• Pricing and Logistics: Obtain quotes from multiple suppliers to compare pricing (FOB, CIF) and understand their lead times and shipping capabilities.
• Customer Reviews and References: Seek feedback from other buyers or ask for references to gauge supplier reliability.

By following these guidelines, chemical buyers can confidently source Chlorinated Paraffin 70, ensuring their products meet the highest standards of safety and performance. Engaging with experienced suppliers who understand your needs will lead to a successful and long-lasting partnership.