Silibase-2898 Rigid Foam Stabilizer

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seat: Beijing
Validity to: Long-term effective
Last update: 2017-12-23 14:20
Browse the number: 195
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Description:
Silibase-2898 Rigid Foam Stabilizer is a silicon-carbon bond, non-hydrolytic type, polysiloxane-Polyether copolymer. This is a versatile foam stabilizer used for the production of polyurethane rigid foam plastic, and its field of application is very wild, for example, it can be used in foaming system including high water content, HCFC-141b and hydrocarbons (e.g. cyclopentane, i-cyclopentane). Particularly it is suitable for HFC-365/227 system

Typical data
Appearance:Light yellow to amber transparent liquid
Content of active material:100%
Viscosity(25℃,mpa.s):600-1200cp
Moisture(%):<0.3%

Features
1. Because of the uniquely designed molecular structure of Silibase-2898 Rigid Foam Stabilizer, this gives the product a superior capacity in emulsifying, nucleus forming and foam stabilizing.
2. Silibase-2898 Rigid Foam Stabilizer has good solubility and stability in the premixed systems containing polyether polyol, water, amine and fire retardant. It gives the premixed polyol good transparency and good fluidity during foaming process. Particularly it can be well used in HFC-365/227 system.
3. With Silibase-2898 Rigid Foam Stabilizer, the ‘shear line’ and ‘small bulgy and hollow’ phenomena can obviously be reduced or even eliminated. Uniform density and highly closed cellular structures can be obtained, the insulation and mechanical strength of the foam can be increased.

How to use
Use levels of 1 to 2 parts Silibase-2898 Rigid Foam Stabilizer Additive per 100 parts polyol are suggested. The optimum surfactant loading should be defined for the particular foam formulation.

Packaging and Storage
Silibase-2898 Rigid Foam Stabilizer Additive is available in 25-kg drums and 250-kg drums.
Shelf life of Silibase-2898 Rigid Foam Stabilizer in sealed drum is 24 months at room temperature.

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