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

DOW DOWSIL 7-3111 Emulsion

DOW DOWSIL 7-3111 Emulsion is a silicone-based anionic emulsion designed for textile softening and hydrophobic finishing. Part of Dow’s DOWSIL™ portfolio, it delivers excellent fabric hand feel, wash durability, and compatibility with other auxiliaries. Widely used in cotton, polyester, and blends for enhanced smoothness and water repellency without yellowing.
  • dow dowsil 7 3111 emulsion_e3869502
  • dow dowsil 7 3111 emulsion_e3869502

Features Of DOW DOWSIL 7-3111 Emulsion

  1. High-solids, anionic silicone emulsion offering excellent film-forming capability and surface smoothness.

  2. Provides outstanding water repellency and moisture barrier properties on porous substrates.

  3. Compatible with acrylic, styrene-acrylic, and vinyl acetate-based polymer systems.

  4. Low VOC content, supporting formulation compliance with stringent environmental and regulatory standards.

  5. Stable under shear and across a broad pH range (pH 4–9), ensuring robust performance in industrial processing.

Typical Applications Of DOW DOWSIL 7-3111 Emulsion

  1. Water-repellent treatment for cementitious coatings and exterior renders.

  2. Enhancement of durability and stain resistance in architectural paints and primers.

  3. Functional additive in construction sealants and joint fillers for improved flexibility and weather resistance.

  4. Surface modifier for nonwovens and mineral-based insulation boards.

  5. Key ingredient in high-performance masonry protection systems.

Specifications Of DOW DOWSIL 7-3111 Emulsion

Chemical TypeDimethyl silicone copolymer emulsion
Product FormOpaque white liquid emulsion
AppearanceHomogeneous, milky-white liquid
Solids Content (wt%)30–32%
pH (at 25°C)6.5–7.5
Density (g/cm³ at 25°C)0.98–1.02
Viscosity (mPa·s, Brookfield LVT, Spindle #3, 20 rpm)150–400
Primary ApplicationsConstruction coatings, masonry protection, and hydrophobic additives


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