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

Covestro 670BA Curing Agent

Covestro Desmodur 670BA is a high-reactivity aliphatic polyisocyanate curing agent from the Desmodur® series, designed for premium two-component polyurethane coatings requiring excellent weather resistance, gloss retention, and low-temperature cure performance in automotive and industrial applications.
  • covestro 670ba curing agent_0b34ee65
  • covestro 670ba curing agent_0b34ee65

Features Of Covestro 670BA Curing Agent

  1. High reactivity with polyisocyanates enabling rapid cure at ambient and elevated temperatures.

  2. Excellent compatibility with aromatic and aliphatic isocyanate systems, including HDI and IPDI-based formulations.

  3. Delivers superior mechanical properties—high hardness, abrasion resistance, and chemical durability in final coatings.

  4. Low volatility and non-hazardous classification support safer handling and compliance with VOC-reduction initiatives.

  5. Consistent batch-to-batch performance ensured by Covestro’s stringent quality control and ISO-certified manufacturing.

Typical Applications Of Covestro 670BA Curing Agent

  1. Automotive OEM clearcoats and basecoat/clearcoat systems.

  2. Industrial maintenance coatings for machinery, rail vehicles, and agricultural equipment.

  3. High-performance coil coatings requiring excellent flexibility and weather resistance.

  4. Powder coating hybrid systems where enhanced flow and crosslink density are critical.

  5. Architectural metal façade coatings exposed to UV, humidity, and thermal cycling.

Specifications Of Covestro 670BA Curing Agent

Chemical TypeAmino resin-based curing agent (melamine-formaldehyde derivative)
Product FormClear, low-viscosity liquid
AppearanceColorless to pale yellow, transparent liquid
Primary ApplicationsThermosetting coatings, automotive refinish, industrial coil and can coatings
Key FeaturesFast ambient cure, excellent storage stability, low formaldehyde emission
BenefitsReduced energy consumption, improved line speed, enhanced film integrity and gloss retention
Storage ConditionsStore at 15–25 °C; protect from freezing and direct sunlight
Shelf Life12 months from date of manufacture under recommended conditions


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