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

Allnex MACRYNAL SM 548 50X Hydroxyl Acrylic Resin

Allnex MACRYNAL SM 548 50X is a hydroxyl-functional acrylic resin designed for high-performance two-component polyurethane coatings. It offers excellent gloss retention, weather resistance, and compatibility with isocyanates. This low-viscosity, solvent-based resin enables efficient formulation of automotive refinish, industrial maintenance, and plastic coatings with superior hardness and chemical resistance.
  • allnex macrynal sm 548 50x hydroxyl acrylic resin_0b8059f3
  • allnex macrynal sm 548 50x hydroxyl acrylic resin_0b8059f3

Features Of Allnex MACRYNAL SM 548 50X Hydroxyl Acrylic Resin

  1. High hydroxyl functionality for excellent crosslinking density with amino and isocyanate curing agents.

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

  3. Low volatile organic compound (VOC) content, supporting compliant high-solids coating formulations.

  4. Superior UV resistance and gloss retention in exterior durable coatings.

  5. Good compatibility with common acrylic, polyester, and cellulose ester resins.

Typical Applications Of Allnex MACRYNAL SM 548 50X Hydroxyl Acrylic Resin

  1. Automotive OEM clearcoats and basecoats.

  2. Industrial maintenance coatings for metal substrates.

  3. General-purpose coil coatings requiring weatherability and flexibility.

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

  5. Powder coating hybrid systems where solution-based acrylics enhance flow and appearance.

Specifications Of Allnex MACRYNAL SM 548 50X Hydroxyl Acrylic Resin

Chemical TypeHydroxyl-functional acrylic copolymer
Product FormLiquid resin in aromatic solvent blend
AppearanceClear, colorless to pale yellow liquid
Hydroxyl Value (mg KOH/g)110–130
Acid Value (mg KOH/g)< 5
Solids Content (% w/w)50 ± 1
Viscosity (25°C, mPa·s)1,800–2,400
Specific Gravity (25°C)0.96–0.99


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