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

Mitsui Chemicals OLESTER Q519 Hydroxyl Acrylic Resin

Mitsui Chemicals OLESTER Q519 is a high-performance hydroxyl acrylic resin from the OLESTER series, designed for premium automotive and industrial coatings. It delivers excellent gloss retention, weather resistance, and compatibility with isocyanate crosslinkers. Its low viscosity and balanced hydroxyl value ensure superior flow, hardness development, and chemical durability in 2K polyurethane systems.
  • mitsui chemicals olester q519 hydroxyl acrylic resin_1a25cbfa
  • mitsui chemicals olester q519 hydroxyl acrylic resin_1a25cbfa

Features Of Mitsui Chemicals OLESTER Q519 Hydroxyl Acrylic Resin

  1. High hydroxyl functionality for excellent crosslinking density with melamine and polyisocyanate curing agents.

  2. Superior weatherability and UV resistance, ensuring long-term gloss retention and color stability.

  3. Low viscosity at high solids content, enabling efficient formulation of high-performance coatings with reduced VOC emissions.

  4. Excellent compatibility with common acrylic, polyester, and cellulose ester resins in multi-resin systems.

  5. Consistent batch-to-batch reproducibility supported by Mitsui Chemicals’ stringent quality control standards.

Typical Applications Of Mitsui Chemicals OLESTER Q519 Hydroxyl Acrylic Resin

  1. Automotive OEM topcoats and clearcoats requiring high durability and aesthetic performance.

  2. Industrial maintenance coatings for metal substrates exposed to outdoor or harsh environments.

  3. High-gloss appliance finishes demanding scratch resistance and chemical resistance.

  4. Coil coating systems where rapid cure response and film integrity are critical.

  5. Powder coating hybrid formulations leveraging hydroxyl reactivity for improved flow and edge coverage.

Specifications Of Mitsui Chemicals OLESTER Q519 Hydroxyl Acrylic Resin

Chemical TypeHydroxyl-functional acrylic copolymer
Product FormLiquid resin solution (typically in xylene or aromatic solvent blend)
AppearanceClear, pale yellow to colorless liquid
Hydroxyl Value (mg KOH/g)80–95
Solids Content (% by weight)50–55
Viscosity (mPa·s, 25°C, #4 spindle, 20 rpm)1,200–2,000
Acid Value (mg KOH/g)< 5
Primary ApplicationsThermosetting automotive, industrial, and coil coatings


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