For procurement professionals and product formulators in the chemical industry, the quality and consistency of raw materials are non-negotiable. Zinc Borate, a key ingredient in many flame-retardant formulations, demands careful consideration during the sourcing process. Understanding its key specifications and how to assess supplier reliability is paramount to ensuring product performance and market success. If you are looking to buy Zinc Borate flame retardant, this guide will help you make informed decisions.

The effectiveness of Zinc Borate is directly tied to its purity and physical characteristics. When evaluating a potential Zinc Borate manufacturer, scrutinize the product specifications. Typical parameters include:

  • Zinc Oxide (ZnO) Content: This usually ranges from 37.0% to 40.0% or higher, indicating the proportion of zinc present, which influences its performance characteristics.
  • Boron Oxide (B2O3) Content: Typically between 45.0% and 48.0%, this indicates the boron content, crucial for the flame-retardant mechanism.
  • Loss on Ignition (LOI): This value, often around 13.0% to 15.5%, relates to the water content released during heating, a key factor in its cooling and flame-retardant action.
  • Particle Size: A fine powder with a controlled particle size (e.g., 1-3 µm or residue on a 325 mesh sieve below 0.1%) ensures good dispersibility in polymer matrices, preventing agglomeration and ensuring uniform protection.
  • Whiteness: High whiteness (e.g., 95% min.) is desirable for applications where color is important.
  • Impurities: Low levels of heavy metals like Lead (Pb) and Cadmium (Cd) are critical for safety and regulatory compliance.

When seeking a supplier in China, look for companies that demonstrate a commitment to quality control. This includes having robust internal testing procedures, providing batch-specific Certificates of Analysis (CoA), and maintaining detailed product documentation like Safety Data Sheets (SDS). Furthermore, inquire about their production capacity and supply chain management to ensure they can meet your ongoing demand.

As a preferred eco-friendly flame retardant, Zinc Borate is in high demand. Understanding the nuances of halogen-free flame retardant price will help you negotiate effectively. Remember that while competitive pricing is important, the reliability and quality of the product from your chosen Zinc Borate manufacturer are far more critical for the long-term success of your product formulations.

By focusing on these specifications and diligently vetting suppliers, you can secure a high-quality Zinc Borate that will effectively enhance the safety and performance of your materials.