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

Allnex MACRYNAL SM 548 50SNA Hydroxyl Acrylic Resin

Allnex MACRYNAL SM 548 50SNA 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. Ideal for automotive refinish and industrial topcoats, this low-VOC, solvent-based resin ensures superior film formation and chemical durability.
  • allnex macrynal sm 548 50sna hydroxyl acrylic resin_1033d1ac
  • allnex macrynal sm 548 50sna hydroxyl acrylic resin_1033d1ac

Features Of Allnex MACRYNAL SM 548 50SNA Hydroxyl Acrylic Resin

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

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

  3. Low viscosity in standard solvent blends, enabling high-solids formulation without sacrificing application performance.

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

  5. Consistent batch-to-batch reproducibility meeting stringent Allnex quality control standards.

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

  1. Automotive OEM clearcoats and basecoats requiring high DOI and weatherability.

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

  3. General-purpose coil coatings where rapid cure response and flexibility are critical.

  4. High-performance appliance finishes demanding scratch resistance and chemical durability.

Specifications Of Allnex MACRYNAL SM 548 50SNA Hydroxyl Acrylic Resin

Chemical TypeHydroxyl-functional acrylic copolymer
Product FormLiquid resin solution
AppearanceClear, pale yellow liquid
Solvent SystemXylene / butyl acetate blend (typical)
Hydroxyl Value (mg KOH/g)130–150
Acid Value (mg KOH/g)< 5
Non-Volatile Content (% w/w)50 ± 1
Viscosity (DIN 4 mm, 25°C)100–160 s


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