Silicone additives for Spray foam/Silicone spray foam XH-1544

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-1544 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-1544 is equal to L-6950, B-8518 in international markets.

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Product Details

WynPUF^®XH-1544 is a non-hydrolyzable silicone surfactant which may be an excellent candidate for use in difficult-to stabilize rigid foam formulations. XH-1544 may be an effective stabilizer for rigid foam formulations incorporating reduced levels of auxiliary blowing agent, for example, high-water/reduced-CFC systems. The foams contained a narrow distribution of small, fine, closed cells that contribute to excellent K-factor performance. It may also be suitable for HCFC-141b systems with excellent dimensional stability and compressive strength.

Physical Data

Appearance: Clear-straw liquid

Active content: 100%

Viscosity at 25°C：400-800CS

Moisture：≤0.2%

Applications

• Effective for stabilization of high water/reduced-HCFC rigid foam formulations

• Provides excellent compressive strength and dimensional stability in reduced-HCFC systems.

• Imparts chemical stability and compatibility in slow reacting rigid foam systems.

• Maximizes HCFC retention by preventing cell coalescence.

• Produces fine, uniform cell structures with a high degree of closed cells.

Levels of Use (additive as supplied)

1.5% is recommended for preparing polyurethane rigid foam. Use levels for this type of foam can vary from 1.5 to 2.5 parts per 100 parts polyol.

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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