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Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
ADDSiL-2051
ADDSiL-2051

ADDSiL™ 2051 is a mono-terminal, bishydroxyl-functional silicone prepolymer with reactivity similar to polyols. It readily reacts with -NCO, -COOH, and other functional groups, making it ideal for synthesizing silicone-modified polyurethanes, polyesters, and polycarbonates. It enhances final resins with improved hand feel, abrasion resistance, anti-blocking, water repellency, and anti-graffiti performance.

ADDSiL-2051

Features & Benefits


  • High reactivity toward isocyanate (-NCO) groups


  • Improves abrasion resistance, anti-fouling, and water/oil repellency


  • Excellent hand feel and slip properties


  • Filler dispersion stabilization with low viscosity


  • Improved adsorption to filler surfaces via reactive functional groups


Physical Properties


Appearance

Light yellow transparent liquid

Hydroxyl Value (mg KOH/g)

112

Average Molecular Weight

1,000

Viscosity (25°C, cP)

30-70

Solid Content (%)

>95.0

Note: These values are typical and are not intended for use as specifications.

Application


  • Synthesis of silicone-modified polyurethane resins and emulsions


  • Modification of polyester and alkyd resins


  • Enhances anti-blocking, abrasion resistance, and tactile properties in coatings and elastomers

Packing and Storage


ADDSiL™ 2051 is available in 25Kg pails and 200Kg drums.


When stored at temperatures between 5°C and 35°C in the original unopened containers, ADDSiL™ 2051 has a shelf life of 12 months from the date of production.

Documents

DownloadADDSiL-2051 Safety Data Sheet
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ADDSiL-2051