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    Adding value to insulation

    Extruded Polystyrene Foam (XPS) is strong and durable, providing high-performance thermal insulation for residential and industrial buildings when used in inverted roofs, floors or ceilings.

    Leveraging our extensive experience in this field, we have developed a range of solutions that offer added value to XPS producers, helping them meet the ever-changing demands of both the insulation sector in particular and the wider construction industry.


    High-concentrated HBCD-free flame retardant masterbatches

    With the use of HBCD restricted by regulations in the EU, North America and other western countries, polymeric brominated FR has become commonly used as a replacement. As a leading producer of FR masterbatches for XPS, we were one of the first to introduce HBCD-free solutions to the market, in compliance with new FR standards.

    High stabilization flame retardants for XPS

    Recognizing that different XPS producers require different thermal stability, we develop tailor-made solutions that meet stringent thermal stability requirements, as well as low and medium thermal stability packages.

    Our Solutions


    Flame Retardants

    Considering new regulations around the world, our high concentration FR masterbatches including halogen-based and halogen-free solutions, provide self-extinguishing properties and meet market needs.


    • Recyclable

    • Halogen free option

    • Suppressed smoke formation

    • Good process ability

    • Reduced incidence of fire


    Chemical Foaming Agents

    Chemical Foaming Agents release gas when decomposed, imparting a cellular structure to the plastic. The gas remains dissolved in the melt while the melt is under pressure, and when the melt is injected into the mold the pressure is reduced allowing the gas to expand the polymer. Available as exothermic or endothermic, Tosaf's cost-effective chemical foaming agents reduce the weight of products, extend product lifecycle and maintain excellent surface finish.


    • Reduces material use

    • Cost effective

    • Enhances production efficiency

    • Environmentally friendly

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