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

DOW DOWSIL FM-6620 Emulsion

DOW DOWSIL FM-6620 Emulsion is a silicone-based pressure-sensitive adhesive emulsion from Dow’s DOWSIL™ portfolio offering excellent peel adhesion thermal stability and substrate versatility for labels tapes and graphic films. It delivers consistent performance across diverse surfaces including paper PET and PP while maintaining low migration and high clarity.
  • dow dowsil fm 6620 emulsion_446f402d
  • dow dowsil fm 6620 emulsion_446f402d

Features Of DOW DOWSIL FM-6620 Emulsion

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

  2. Provides superior water repellency and moisture barrier performance on porous substrates.

  3. Compatible with a broad range of water-based systems including acrylics, styrene-acrylics, and PVA blends.

  4. Low VOC formulation compliant with major global environmental regulations for architectural and industrial coatings.

  5. Stable under typical storage conditions (5–40 °C) and demonstrates good freeze-thaw resistance after proper handling.

Typical Applications Of DOW DOWSIL FM-6620 Emulsion

  1. Exterior masonry and stucco coatings for enhanced weather resistance and efflorescence control.

  2. Waterproofing additives in cementitious tile adhesives and grouts.

  3. Hydrophobic treatment for fiber-cement boards and gypsum-based building panels.

  4. Performance enhancer in elastomeric roof coatings to improve rain shedding and dirt pickup resistance.

  5. Functional additive in spray-applied fire-resistive materials (SFRMs) to reduce water absorption during curing.

Specifications Of DOW DOWSIL FM-6620 Emulsion

Chemical TypeDimethyl/diphenyl siloxane copolymer emulsion
Product FormAqueous anionic emulsion
AppearanceOpaque white to off-white liquid
Solids Content (wt%)30.0 ± 1.0%
pH (25 °C)6.5 – 7.5
Viscosity (mPa·s, Brookfield LVT, Spindle #1, 6 rpm)50 – 200
Particle Size (D50, nm)150 – 300
Freeze-Thaw StabilityPasses 3 cycles (-18 °C / 23 °C)


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *