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

Evonik DYNAPOL S 394 Saturated Polyester Resin

Evonik DYNAPOL S 394 is a saturated polyester resin designed for high-performance coil coating and can coating applications. It offers excellent gloss retention, weather resistance, and smooth film formation. Compatible with melamine crosslinkers, it delivers superior hardness, flexibility, and chemical resistance. Widely used in architectural and industrial metal finishing where durability and aesthetic consistency are critical.
  • evonik dynapol s 394 saturated polyester resin_f320ede7
  • evonik dynapol s 394 saturated polyester resin_f320ede7

Features Of Evonik DYNAPOL S 394 Saturated Polyester Resin

  1. High chemical resistance to solvents, acids, and alkalis.

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

  3. Low viscosity enabling easy formulation and good flow in coating systems.

  4. Good compatibility with melamine-formaldehyde crosslinkers for thermoset applications.

  5. Non-yellowing character suitable for high-gloss white and light-colored coatings.

Typical Applications Of Evonik DYNAPOL S 394 Saturated Polyester Resin

  1. Powder coatings for architectural aluminum profiles.

  2. High-performance coil coatings for metal roofing and wall panels.

  3. Industrial maintenance coatings requiring corrosion protection.

  4. Automotive OEM and refinish topcoats demanding gloss retention.

  5. Appliance coatings for refrigerators, washing machines, and ovens.

Specifications Of Evonik DYNAPOL S 394 Saturated Polyester Resin

Chemical TypeSaturated polyester resin
Product FormFree-flowing white to off-white granules
AppearanceGranular, free of lumps and foreign particles
Primary ApplicationsThermosetting powder coatings and coil coatings
Key FeaturesLow melt viscosity, excellent film formation, non-yellowing
BenefitsEnhanced gloss, durability, and substrate adhesion
Crosslinker CompatibilityMelamine-formaldehyde resins (e.g., hexamethoxymethylmelamine)
Storage StabilityStable at ambient temperature for ≥12 months in sealed packaging


Evonik DYNAPOL S 394 Saturated Polyester Resin – Frequently Asked Questions (FAQ)

Q1: What is the primary application of DYNAPOL S 394 in coating systems?

A: DYNAPOL S 394 is a saturated polyester resin designed primarily as a binder component in high-performance powder coatings, especially for architectural and industrial metal substrates requiring excellent gloss retention, weather resistance, and mechanical durability.


Q2: Is DYNAPOL S 394 compatible with common crosslinkers used in thermosetting powder coatings?

A: Yes, it is formulated to react efficiently with standard crosslinkers such as triglycidyl isocyanurate (TGIC) and hydroxyalkyl amide (HAA) curing agents, enabling robust network formation and balanced cure profiles under typical powder coating baking conditions.


Q3: How does DYNAPOL S 394 contribute to film properties in finished coatings?

A: It imparts good flexibility, impact resistance, and adhesion to metallic substrates while supporting high gloss and long-term UV stability—key attributes for exterior-facing coated products such as aluminum extrusions and steel panels.


Q4: What are the recommended storage conditions for DYNAPOL S 394?

A: Store in a cool, dry place away from direct sunlight and sources of heat. Keep containers tightly sealed to prevent moisture uptake and maintain optimal handling characteristics prior to incorporation into powder formulations.



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