Silicone Auxiliary For Rigid Foam

Product Description:
WynPUF^® XH-1690 foam stabilizer is a Si-C bond, non-hydrolytic type polysiloxane polyether copolymer. This is a versatile foam stabilizer used for the production of polyurethane rigid foam plastic used in appliances and construction industry. It is suitable as general-purpose surfactant for other rigid foam applications and with different blowing agents including iso-, cyclo pentane, HCFC-141b and high water content foaming system.

Physical data:
Appearance：Yellow-color clear liquid
Viscosity at 25℃：600-1000 CS
moisture：<0.2%

• Suitable for use in systems for refrigeration, lamination and pour-in-place foam applications, usinghydrocarbons as blowing agents and co-blown with water 
• Provides good solubility of cyclo-pentane and cyclo/iso-pentane mixtures in the typical polyol formulationsused in the appliances industry 
• Delivers extremely fine celled foams, thus obtaining foams with very good thermal insulation performances
• Stabilization of foam growth in pour-in-place applications, in systems using CH, water and HCFC-141b asblowing agents as well as HFCs.

Levels of Use (additive as supplied):
The common level range for XH-1690 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 Top Win 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 Top Win 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.