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

Wacker ELASTOSIL RD 6620F Silicone Emulsion

Wacker ELASTOSIL RD 6620F is a high-solids, anionic silicone emulsion designed for textile softening and hydrophobic finishing. It delivers excellent wash-fastness, smooth hand feel, and durable water repellency on cotton and blends. Compatible with common auxiliaries, it enables easy application via padding or exhaust methods without compromising fabric breathability or color fastness.
  • wacker elastosil rd 6620f silicone emulsion_3a33a217
  • wacker elastosil rd 6620f silicone emulsion_3a33a217

Features Of Wacker ELASTOSIL RD 6620F Silicone Emulsion

  1. High-solids, anionic silicone emulsion offering excellent compatibility with water-based systems.

  2. Provides superior softness, smoothness, and hydrophobicity on textile and nonwoven substrates.

  3. Stable under neutral to mildly alkaline conditions (pH 6–8), enabling broad formulation flexibility.

  4. Low foaming profile suitable for high-shear processing such as padding, coating, and spray applications.

  5. Complies with OEKO-TEX® Standard 100 Class I requirements for eco-friendly textile finishing.

Typical Applications Of Wacker ELASTOSIL RD 6620F Silicone Emulsion

  1. Softening and hydrophobizing treatment of cotton, polyester, and blended woven fabrics.

  2. Surface modification of nonwovens for hygiene products (e.g., wipes, baby diapers).

  3. Finishing agent in technical textiles requiring enhanced drape, hand feel, and abrasion resistance.

  4. Component in water-based coatings for paper and board to improve moisture barrier and surface slip.

  5. Functional additive in leather finishing formulations for improved grain softness and water repellency.

Specifications Of Wacker ELASTOSIL RD 6620F Silicone Emulsion

Chemical TypeDimethyl silicone polymer emulsion (anionic)
Product FormAqueous emulsion
AppearanceOpaque white liquid
Active ContentApprox. 60 wt-%
pH (10% aqueous solution)6.5–7.5
Density (20 °C)Approx. 1.02 g/cm³
Viscosity (25 °C, Brookfield RVT, spindle #3, 20 rpm)1,500–3,500 mPa·s
Storage Stability≥ 6 months at 5–30 °C in sealed original container


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