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CX-351

CX-351 is a hydroxyl-functionalized silicon-containing surface additive, suitable for solvent-based and high-solid-content polyurethanes, especially for coated fabrics, which can improve the wettability of the substrate. It is also applicable to the polymerization process of polyurethane and polyurethane dispersions.

Product advantages

  • Improve the leveling and wettability of release paper.

  • Improve the wettability of woven and nonwoven substrates and reduce pinhole formation.

  • It can be used in polyurethane and polyurethane dispersion polymerization processes, endowing them with long-lasting surface smoothness, flexibility and a soft touch effect.

Product Parameters

ItemsIndex
Chemical constitutionHydroxyl-functionalized polyether-modified polydimethylsiloxane
AppearanceA slightly yellow, clear and transparent liquid
Viscosity(25℃) 950cp±200cp
Density(25℃,g/cm³) 1.0318±0.01 
Density(150℃*30min)≥98% 
Refractive index1.4200ND-1.4300ND 
Surface tension coefficient(25℃,mN/m)19.99±1

Proposed dosage
Based on ready-to-use polyurethane solution, the additive dosage is 0.1% - 0.3% (depending on the supply status). The above recommended dosages are for reference only. The optimal dosage should be determined through a series of tests related to the application.
Application area
CX-351 is recommended for both wet and dry processes, and can also be used in solvent-based and waterborne polymerization processes to produce solvent-based polyurethane or waterborne polyurethane dispersions.
Processing instructions
CX-351 should be added under stirring conditions to ensure good dispersion. If it is used in a polymerization process, its addition method highly depends on factors such as pH value and the addition time during the polymerization process.
Storage and transportation
This product should be transported and stored as a non-hazardous chemical. Store in a well-ventilated, cool and dry environment; Shelf life: 36 months.
Packing specification
25KG/glue barrel,190KG/metal bucket.
Product information
CX-351表面活性剂 TDS.pdf

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