For professionals in the chemical industry, sourcing high-quality raw materials is a cornerstone of product development and manufacturing success. When it comes to flame retardants, particularly for applications in polystyrene foams like EPS and XPS, finding a reliable supplier of Brominated Styrene-Butadiene-Styrene (Br-SBS) block copolymer (CAS 1195978-93-8) is crucial. This article serves as a guide for procurement managers and R&D scientists looking to purchase this advanced, eco-friendly flame retardant, highlighting key specifications and sourcing strategies.

Understanding the Need: Why Br-SBS?

The global shift towards safer chemical alternatives has positioned Br-SBS as a leading replacement for Hexabromocyclododecane (HBCD). Its polymeric nature, high bromine content (typically ≥65%), and excellent thermal stability offer superior performance and environmental benefits. When you need to buy a flame retardant that ensures fire safety in insulation materials, electronics, and automotive components, Br-SBS stands out. Its efficacy in polystyrene foams, combined with its improved EHS profile, makes it a sought-after additive.

Key Specifications for Sourcing Br-SBS

When evaluating potential suppliers and products, procurement specialists should pay close attention to the following specifications:

  • CAS Number: Ensure the product is indeed Brominated Styrene-Butadiene-Styrene Block Copolymer with CAS number 1195978-93-8.
  • Bromine Content: A minimum of 64% or 65% bromine content is typically required for effective flame retardancy. This is a critical metric to confirm with your potential manufacturer.
  • Appearance: The product should generally be a white or off-white powder or granules. Consistent appearance is a good indicator of quality control.
  • Thermal Stability: Look for a high 5% thermal weight loss temperature, usually cited as ≥230°C. This indicates the material can withstand processing temperatures without significant degradation.
  • Volatile Matter: A low volatile content (≤0.5% or ≤0.3%) is desirable for product purity and processing stability.
  • pH: A neutral pH range (5.5-7.5) is standard.
  • HBCD Equivalence: The product should be positioned as an equivalent or superior alternative to HBCD, offering comparable flame retardancy in target applications.

Where to Buy Brominated SBS: Focusing on Reliable Suppliers

When you are ready to buy Brominated SBS, partnering with a reputable manufacturer and supplier is essential. China has emerged as a significant hub for chemical production, offering competitive pricing and a wide range of products. When sourcing, look for suppliers who:

  • Provide detailed technical data sheets (TDS) and safety data sheets (SDS).
  • Have robust quality control processes and certifications (e.g., ISO, REACH).
  • Offer consistent product quality and reliable supply chains.
  • Can provide samples for testing and validation in your specific formulations.
  • Have experience supplying to your industry or region.

Many global buyers choose to purchase from manufacturers in China due to cost-effectiveness and the sheer volume of production. However, due diligence is key to ensure you are buying from a legitimate and quality-focused entity. Consider requesting certificates of analysis (COA) with each batch.

Leveraging Br-SBS in Your Formulations

The versatility of Br-SBS means it can be integrated into various polymer matrices. As a procurement manager, understanding its application in EPS/XPS insulation, polyolefins, ABS, and polycarbonate will help you identify its best use cases within your product portfolio. When you buy Br-SBS, you're investing in improved fire safety, regulatory compliance, and a more sustainable product lifecycle.

Next Steps: Getting a Quote and Sample

Ready to enhance your product's fire safety with Brominated SBS? As a leading supplier, we are here to assist. We encourage you to request a quote and obtain samples to rigorously test our Br-SBS (CAS 1195978-93-8) in your specific applications. Our team is dedicated to providing technical support and ensuring you find the optimal solution for your needs. Buying high-quality flame retardants is a critical step, and we are committed to making that process seamless and effective for you.

By prioritizing key specifications and selecting trusted suppliers, you can confidently source Brominated SBS, ensuring both performance and compliance in your innovative products.