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

AA-5109 Hydroxy Acrylic Resin

AA-5109 Hydroxy Acrylic Resin is a high-performance hydroxyl-functional acrylic polymer from the AA Series by Allnex, engineered for 2K polyurethane coatings. It delivers excellent gloss retention, weather resistance, and compatibility with isocyanates. Widely used in automotive refinishes and industrial topcoats where durability and clarity are critical.
  • aa 5109 hydroxy acrylic resin_a52c86b8
  • aa 5109 hydroxy acrylic resin_a52c86b8

Features Of AA-5109 Hydroxy Acrylic Resin

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

  2. Outstanding weather resistance and UV stability, ensuring long-term gloss and color retention in exterior coatings.

  3. Good solubility in common aromatic and ester solvents, enabling easy formulation into high-solids and low-VOC systems.

  4. Balanced molecular weight distribution for optimal flow, leveling, and film formation without excessive viscosity buildup.

  5. Low volatile organic content (VOC) profile, supporting compliance with global environmental regulations such as EPA 40 CFR Part 51 and EU Directive 2004/42/EC.

Typical Applications Of AA-5109 Hydroxy Acrylic Resin

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

  2. Industrial maintenance coatings for metal substrates exposed to harsh environmental conditions.

  3. General-purpose coil coatings used in pre-painted metal applications for construction and appliances.

  4. High-performance plastic coatings for automotive interior and exterior trim components.

  5. Architectural metallic and premium decorative finishes for aluminum extrusions and façade systems.

Specifications Of AA-5109 Hydroxy Acrylic Resin

Chemical TypeHydroxy-functional acrylic copolymer
Product FormLiquid resin solution
AppearanceClear, pale yellow to amber liquid
Hydroxyl Value (mg KOH/g)75–85
Acid Value (mg KOH/g)< 5
Solvent Content (wt%)55–65 (in xylene/butyl acetate blend)
Viscosity (25°C, mPa·s)3,000–5,000 (Brookfield RV, spindle #3, 20 rpm)
Non-Volatile Content (wt%)35–45


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