Silicone additives for Spray foam/Silicone spray foam XH-1625

short description:

WynPUF® is our brand of silicone regulator for PU. Silicone foam control selection is important when developing open-cell and closed-cell spray systems. XH-1625 help to create the performance advantages you need. Silicone surfactant for spray foam is used in a variety of applications, from basement and attic insulation to acoustic insulation and soundproofing. It is also used to fill gaps in walls and ceiling, providing a tight seal to prevent air and moisture from entering the structure. Spray foam can be used to protect pipes from freezing during cold weather.

XH-1625 is equal to L-6950, B-8518 in international markets.

Product Detail

Product Tags

Product Details

XH-1625 foam stabilizer is a Si-C bone, non-hydrolytic type polysiloxane polyether copolymer. It is mainly suitable for rigid polyurethane foam with Pentane

Foaming system. Polyurethane (PU) foam is created when isocyanate (such as TDI, MDI, PAPI, TTI) and polyol are reacted. It becomes polyurethane foam when gas is introduced, either via reaction of the isocyanate with water, or with blowing agents.

Physical Data

Appearance: Color clear liquid

Viscosity at 25°C:500-1000CS

Moisture: 0.3%

PH (1% aqueous solution): 6.0+1.0


• Specially designed for high-end refrigerators, refrigerators and other hard foam system. It can provide fine cell structure, which makes the foam products have lower thermal conductivity.

• It can provide high flow of foaming material, has good density distribution and strength distribution, and can reduce the cavity on the foam surface.

• The common level range for XH-1625 is 2.0 to 3.0 parts per hundred of polyol (php).

Levels of Use (additive as supplied)

The common level range for XH-1625 is 1.5 to 2.5 parts per hundred of polyol (php).

Package and storage stability

Available in 200kg drums.

24 months in closed containers.

Product Safety

When considering the use of any TopWin products in a particular application, review our latest Safety Data Sheets and ensure that the use intended can be accomplished safely. For Safety Data Sheets and other product safety information, contact the TopWin sales office nearest you. Before handling any of the products mentioned in the text, please obtain available product safety information and take necessary steps to ensure safety of use.

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