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

Dow DOWSIL MQ-1640 Silicone Flake Resin

Dow DOWSIL™ MQ-1640 Silicone Flake Resin is a high-purity, solvent-based methyl-phenyl silicone resin offering exceptional thermal stability, UV resistance, and film-forming capability. Designed for coatings, inks, and release applications, it enhances hardness, gloss, and chemical resistance while enabling easy dispersion and compatibility with organic polymers.
  • dow dowsil mq 1640 silicone flake resin_46b2c202
  • dow dowsil mq 1640 silicone flake resin_46b2c202

Features Of Dow DOWSIL MQ-1640 Silicone Flake Resin

  1. High-purity, solvent-free silicone flake resin with excellent thermal stability.

  2. Provides outstanding film-forming capability and uniform surface coverage in coatings and composites.

  3. Offers superior compatibility with organic resins, silicones, and pigment systems.

  4. Delivers enhanced scratch resistance and gloss retention in finished formulations.

  5. Enables easy dispersion in both polar and non-polar media without requiring high-shear processing.

Typical Applications Of Dow DOWSIL MQ-1640 Silicone Flake Resin

  1. High-performance industrial coatings for metal and plastic substrates.

  2. Functional additives in automotive clearcoats and OEM finishing systems.

  3. Reinforcing filler in heat-resistant silicone elastomers and RTV sealants.

  4. Surface modifier for powder coatings to improve flow, leveling, and mar resistance.

  5. Key ingredient in specialty inks and overprint varnishes requiring durability and clarity.

Specifications Of Dow DOWSIL MQ-1640 Silicone Flake Resin

Chemical TypeMethyl/phenyl silsesquioxane (MQ-type)
Product FormFree-flowing white to off-white flake solid
AppearanceDry, crystalline flakes with consistent particle morphology
Primary ApplicationsCoatings, inks, sealants, and high-performance composites
Key FeaturesSolvent-free, thermally stable, low volatility, non-yellowing
BenefitsImproved hardness, enhanced weatherability, reduced surface tack
Storage ConditionsStore in original sealed container at 5–30°C; protect from moisture
Shelf Life24 months from date of manufacture under recommended storage


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