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

Allnex ROSKYDAL 550 Polyester Resin

Allnex ROSKYDAL 550 is a high-performance alkyd-modified polyester resin designed for durable coil and can coatings. It offers excellent gloss retention, flexibility, and chemical resistance. Ideal for ambient-cure and low-bake systems, it ensures strong adhesion to metal substrates and superior weatherability. Part of Allnex’s ROSKYDAL series, this solvent-based resin enhances formulation efficiency and film integrity in industrial protective coatings.
  • allnex roskydal 550 polyester resin_d8dd91ac
  • allnex roskydal 550 polyester resin_d8dd91ac

Features Of Allnex ROSKYDAL 550 Polyester Resin

  1. High-solids, solvent-borne unsaturated polyester resin designed for excellent gloss and surface hardness.

  2. Optimized reactivity for balanced gel time and cure speed in ambient- or low-temperature curing systems.

  3. Superior compatibility with common reactive diluents (e.g., styrene) and standard peroxide initiators.

  4. Delivers outstanding chemical resistance and mechanical durability in cured thermoset coatings and laminates.

  5. Consistent batch-to-batch performance with stringent quality control per ISO 9001 manufacturing standards.

Typical Applications Of Allnex ROSKYDAL 550 Polyester Resin

  1. Industrial maintenance coatings for metal substrates requiring corrosion protection.

  2. Marine topcoats and gel coats for fiberglass-reinforced plastic (FRP) components.

  3. Automotive under-hood and underbody protective coatings.

  4. Architectural pre-finished metal (PPM) coil and sheet coatings.

  5. High-performance repair mortars and polymer concretes.

Specifications Of Allnex ROSKYDAL 550 Polyester Resin

Chemical TypeUnsaturated polyester resin
Product FormLiquid, solvent-borne
AppearanceClear to pale yellow viscous liquid
Primary ApplicationsCoatings, gel coats, laminating resins
Key FeaturesHigh solids, fast cure, excellent hardness development
BenefitsReduced VOC emissions vs. conventional low-solids resins; improved productivity through shorter cure cycles
Storage StabilityAt least 6 months at 20–25 °C in sealed original container
Recommended InitiatorMethyl ethyl ketone peroxide (MEKP), 0.8–1.5 wt% based on resin + diluent


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