Silicone additives for Spray foam/Silicone spray foam XH-1790

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-1790 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-1790 is equal to L-6950, B-8518 in international markets.

Product Detail

Product Tags

Product Details

XH-1790 foam stabilizer is a Si-C bond, non-hydrolytic type polysiloxane polyether copolymer. It is suitable for various rigid foam applications in waterborne foaming system. XH-1790 can provide regular cell and dimensional stability.

Physical Data

Appearance: yellow color clear liquid

Viscosity at 25°C:600-1000CS

Moisture: ≤0.2%

PH 1% aquwous solution: 6.0+1.0


• Specially designed for water as blowing agents

• The compatibility for the whole system is excellent.

• Obtain high foam opening and good dimensional stability.

• Mainly used in the field of water-blown cell opened spraying foam, panel, packaging and filling foam in low density. 

Levels of Use (additive as supplied)

The common level range for XH-1790 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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