Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

DOW DOWSIL SM490EX Emulsion

DOW DOWSIL SM490EX Emulsion is a high-solids, anionic silicone emulsion from Dow’s DOWSIL™ portfolio. Designed for textile softening and hydrophobic finishing, it delivers exceptional fabric hand feel, durability, and wash-fastness. Compatible with conventional dyeing/finishing systems, it offers stable performance across pH and temperature ranges—ideal for polyester, cotton, and blends.
  • dow dowsil sm490ex emulsion_d0aa7207
  • dow dowsil sm490ex emulsion_d0aa7207

Features Of DOW DOWSIL SM490EX Emulsion

  1. High-solids, anionic silicone emulsion offering excellent stability in aqueous systems.

  2. Provides superior softening, lubricity, and hydrophobicity on textile and nonwoven substrates.

  3. Compatible with common textile auxiliaries including dyes, fixatives, and other silicone emulsions.

  4. Low foaming formulation suitable for high-speed pad applications and continuous processing lines.

  5. Meets Oeko-Tex® Standard 100 Class I requirements for eco-friendly textile finishing.

Typical Applications Of DOW DOWSIL SM490EX Emulsion

  1. Cotton and blended fabric softening in garment and home textile finishing.

  2. Nonwoven fabric treatment for hygiene products including wipes and medical gowns.

  3. Technical textiles requiring durable water repellency and tactile enhancement.

  4. Knit and woven fabric conditioning prior to dyeing or printing processes.

  5. Industrial filtration media finishing to improve dust retention and handling properties.

Specifications Of DOW DOWSIL SM490EX Emulsion

Chemical TypeDimethyl silicone polymer emulsion
Product FormStable aqueous emulsion
AppearanceOpaque white liquid
pH (1% aqueous solution)5.5 – 6.5
Active Content30.0 ± 1.0 wt%
Density (25°C)0.98 – 1.02 g/cm³
Viscosity (Brookfield, #3 spindle, 20 rpm, 25°C)200 – 600 cP
Freeze-Thaw StabilityPasses 3 cycles (–10°C for 16 h / 25°C for 8 h)


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