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

Evonik DYNAPOL S 1421 Saturated Polyester Resin

Evonik DYNAPOL S 1421 is a high-performance saturated polyester resin designed for durable coil coating and metal decorating applications. It offers excellent gloss retention, chemical resistance, and smooth film formation. This low-viscosity, solvent-based resin ensures outstanding flow, leveling, and adhesion to pretreated metals. Ideal for premium architectural and appliance finishes requiring long-term weatherability and mechanical robustness.
  • evonik dynapol s 1421 saturated polyester resin_93807454
  • evonik dynapol s 1421 saturated polyester resin_93807454

Features Of Evonik DYNAPOL S 1421 Saturated Polyester Resin

  1. High chemical resistance to solvents, acids, and alkalis in cured coatings.

  2. Excellent weathering stability and UV resistance for long-term outdoor performance.

  3. Good flexibility combined with high hardness after crosslinking with melamine formaldehyde resins.

  4. Low viscosity enables easy formulation into high-solids and low-VOC coating systems.

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

Typical Applications Of Evonik DYNAPOL S 1421 Saturated Polyester Resin

  1. Prefinished metal (coil coating) for architectural panels and appliance exteriors.

  2. Automotive OEM and refinish clearcoats requiring gloss retention and chip resistance.

  3. Industrial maintenance coatings for steel structures and equipment in aggressive environments.

  4. High-performance powder coatings for outdoor furniture, fencing, and building components.

Specifications Of Evonik DYNAPOL S 1421 Saturated Polyester Resin

Chemical TypeSaturated polyester resin (melamine-curable)
Product FormLiquid, solvent-based solution
AppearanceClear, pale yellow liquid
Non-Volatile Content (NV)58–62 % (by weight, 1 h at 130 °C)
Acid Value7–12 mg KOH/g
Hydroxyl Value45–55 mg KOH/g
Gardner Color≤ 3
Primary ApplicationsHigh-durability coil, automotive, and industrial coatings


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