Dodecanedioic Acid (DDA) Latent Curing Agent
CAS Number: 693-23-2
Dodecanedioic Acid (DDA) is a solid dicarboxylic acid used as a latent curing agent for epoxy and TGIC-free powder coating systems, offering excellent storage stability and a smooth, flexible cure at 160–200 °C. When used in combination with epoxy resins, DDA produces powder coatings and adhesives with good flow, high gloss, and improved flexibility versus anhydride-cured systems. Its lower reactivity at room temperature gives outstanding one-component stability.
Technical Specifications
| purity | ≥99% |
| moisture | ≤0.1% |
| acidNumber | 530–540 mg KOH/g |
| appearance | White crystalline powder |
| meltingPoint | 128–132 °C |
Applications
- Epoxy powder coating hardener
- TGIC-free polyester-epoxy hybrid powder coatings
- One-component adhesive films
- Flexible epoxy sealants
- Coil coating formulations
Key Features
- Excellent storage stability in 1K epoxy systems
- Smooth flow and high gloss in powder coatings
- Better flexibility than anhydride hardeners
- TGIC-free option for safe powder coating
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CAS Number
693-23-2
Category
Adhesive / Sealant AdditivesAvailability
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