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

Dow AU-685HS Acrylic Resin

Dow AU-685HS is a high-solids, low-VOC acrylic resin from Dow’s AU Series, engineered for premium architectural and industrial coatings. It delivers excellent gloss retention, UV resistance, and alkali stability while enabling fast drying and smooth film formation. Ideal for waterborne and solvent-borne systems requiring durability and regulatory compliance.
  • dow au 685hs acrylic resin_f45951db
  • dow au 685hs acrylic resin_f45951db

Features Of Dow AU-685HS Acrylic Resin

  1. High-solids, low-VOC acrylic emulsion designed for sustainable coating formulations.

  2. Excellent block resistance and early water resistance for fast-drying architectural and industrial coatings.

  3. Superior scrub resistance and film integrity after curing, meeting ASTM D2486 requirements.

  4. Good alkali resistance and compatibility with common coalescents and rheology modifiers.

  5. Consistent batch-to-batch performance with robust freeze-thaw stability (3 cycles at –15 °C).

Typical Applications Of Dow AU-685HS Acrylic Resin

  1. Interior and exterior architectural wall paints.

  2. Low-odor, zero-VOC premium decorative coatings.

  3. Industrial maintenance coatings for metal and masonry substrates.

  4. Textured finishes and elastomeric wall systems.

  5. Coatings requiring enhanced wet adhesion and humidity resistance.

Specifications Of Dow AU-685HS Acrylic Resin

Chemical TypeAcrylic copolymer emulsion
Product FormWhite to off-white liquid
Non-Volatile Content (wt%)52.0 ± 1.0%
pH8.0 – 9.0
Particle Size (D50, nm)180 – 220 nm
Minimum Film Formation Temperature (MFFT)12 °C
Viscosity (Brookfield, mPa·s, RVT, #2 spindle, 20 rpm)50 – 150
Freeze-Thaw StabilityPass (3 cycles)


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