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Jun 11, 2024

Silicone Flexible PU Foam Agent/ Silicone Surfactants XH-2950



WynPUF® is the brand name for polyurethane foam additives, with XH-2950 being a specialized silicone surfactant designed for flexible foam applications. This product is ideal for use in conventional flexible foam and slab stock foam, particularly those requiring flame retardant properties. XH-2950 is equivalent to international products such as DC-5950, DC-5990, L-5702, L-5770, and B-8229.

Product Details

WynPUF® XH-2950 is a low to medium efficiency, non-hydrolyzable silicone surfactant specifically formulated for flexible polyether slabstock foam. It excels in providing enhanced flame-retardant properties compared to other silicone surfactants.

Key Features and Benefits

  • Synergistic Flame Retardant Effect:

    • XH-2950 works synergistically with flame retardants, allowing for reduced levels of flame retardant while maintaining or enhancing flame-retardant properties.
    • Helps achieve compliance with stringent fire safety standards like BS 5852 Crib 5 and TB 117.
  • Superior Emulsification:

    • Enhances nucleation, leading to finer and more open cell structures.
    • Improves the overall physical properties of the foam, making it more durable and resilient.
  • Wide Processing Latitude:

    • Offers flexibility in processing, making it adaptable to various manufacturing conditions and requirements.

Typical Properties

  • Appearance: Yellow or colorless liquid
  • Viscosity at 25°C: 400-800 cst
  • Density at 25°C: 1.03 ± 0.02 g/cm³
  • Water Content: Less than 0.2%

Levels of Use

  • Recommended Use: WynPUF® XH-2950 is recommended for use in flexible slabstock foam applications with flame retardant requirements.
  • Application Rate: The recommended use level is 1.0 parts per hundred polyol (pphp). This dosage is effective in achieving a Crib 5 rating in accordance with BS 5852 when used with appropriate flame retardants.

Application Process

  1. Preparation: Ensure all materials and equipment are clean and ready for use.
  2. Mixing: Add WynPUF® XH-2950 to the polyol component of the foam formulation at the recommended level of 1.0 pphp.
  3. Flame Retardant Addition: Incorporate the appropriate flame retardants into the mix to meet specific fire safety standards.
  4. Foaming: Proceed with the standard foaming process, ensuring thorough mixing and proper handling of all ingredients.
  5. Curing: Allow the foam to cure as per standard procedures, ensuring optimal properties and performance.

 Packaging and Storage

  • Packaging: Available in 200 kg drums or 1000 kg Intermediate Bulk Containers (IBC).
  • Storage Conditions: Should be stored at room temperature in original, sealed containers.
  • Shelf Life: Under recommended storage conditions, the shelf life is 24 months.

Product Safety

For safe handling and use, consult the latest Safety Data Sheets (SDS) provided by Top Win. Key safety practices include:

  • Reviewing SDS: Ensure familiarity with the product's safety data sheets before use.
  • Safety Measures: Implement necessary safety measures to handle the product safely.
  • Contact Information: Reach out to the nearest Top Win sales office for safety data sheets and additional product safety information.

Handling WynPUF® XH-2950 properly ensures that its benefits are maximized while maintaining safety and compliance with industry standards.

TopWin is one of the leading & professional manufacturers with more than 20 years of experience and has domestic top-level engineers in the silicone surfactant industry. We specialize in producing all kinds of SILICONE-based new materials and specialize in research, production, sales, and marketing of silicone-based performance materials. Provide good OEM&ODM service. Our products are mainly used in polyurethane foamAgriculture, Coatings and InksLeather & TextilesFilm and PaperCosmetic industryetc.