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

Allnex MACRYNAL SM 512 65BACX Hydroxyl Acrylic Resin

Allnex MACRYNAL SM 512 65BACX is a hydroxyl-functional acrylic resin designed for high-performance two-component polyurethane coatings. It delivers excellent gloss retention, weather resistance, and compatibility with isocyanates. Ideal for automotive refinish and industrial topcoats requiring durability, clarity, and fast cure. Solvent-based, medium molecular weight, and optimized for balanced flow and hardness development.
  • allnex macrynal sm 512 65bacx hydroxyl acrylic resin_fe8eb78f
  • allnex macrynal sm 512 65bacx hydroxyl acrylic resin_fe8eb78f

Features Of Allnex MACRYNAL SM 512 65BACX Hydroxyl Acrylic Resin

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

  2. Optimized molecular weight distribution for balanced flow, leveling, and film hardness development.

  3. Low viscosity in common organic solvents enabling high-solids formulation flexibility.

  4. Superior UV resistance and gloss retention in outdoor-cured coatings.

  5. Consistent batch-to-batch reproducibility meeting stringent automotive OEM quality requirements.

Typical Applications Of Allnex MACRYNAL SM 512 65BACX Hydroxyl Acrylic Resin

  1. Automotive original equipment manufacturer (OEM) topcoats and clearcoats.

  2. Refinish coatings for automotive and heavy-duty vehicle repair.

  3. Industrial maintenance coatings requiring weatherability and chemical resistance.

  4. High-performance coil coatings for architectural and appliance substrates.

  5. Powder coating hybrid systems where acrylic backbone enhances film integrity.

Specifications Of Allnex MACRYNAL SM 512 65BACX Hydroxyl Acrylic Resin

Chemical TypeHydroxyl-functional acrylic copolymer
Product FormLiquid resin solution
AppearanceClear to slightly hazy amber liquid
Solvent SystemXylene / butyl acetate / ester-based blend
Hydroxyl Value (mg KOH/g)64–68
Acid Value (mg KOH/g)< 5
Non-Volatile Content (% w/w)64–66
Viscosity (mPa·s, 25°C, DIN 4.0)1,800–2,400


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