Epoxy Curing Agent DH-3239 Hardener
DH-3239 is a cycloaliphatic amine hardener built for light-colored and clear epoxy coating systems. It cures to a transparent, high-gloss film with smooth leveling, making it a reliable choice for decorative floors and wall coatings where a clean, uniform finish is the priority.
Product Specifications
| Property | Unit | Value |
|---|
| Model | - | DH-3239 |
| Color | - | Gardner color; ≤2 |
| Appearance | - | Colorless |
| Viscosit | mPa﹥s (25℃) | 300-500 |
| Amine Value | mg KOH/g | 270-290 |
| AHEW | g/mol | 98 |
| PHR | EEW ~ 190 g/eq | 100:50 |
| Density | g/cm3 (25℃) | 0.98 |
| Packing | - | 200kg drum |
Typical Performance
| Pot life (LER EEW~190) 100g | 25℃ | 30-50min |
| Phase II/III with 200μ wet film thickness | 25℃ | 3-4 hours |
| Phase II/III with 200μ wet film thickness | 25℃ | 18-24 hours |
| Phase II/III with 800μ wet film thickness | 25℃ | 4-5 hours |
| Phase II/III with 800μ wet film thickness | 25℃ | 24-32 hours |
Key Applications
- Light colored floor coatings
- Clear and pastel topcoats
- White epoxy wall paints
- Decorative art flooring
Product Characteristics
- Clear film with high transparency
- Smooth leveling for uniform finish
- High gloss decorative appearance
- Low viscosity for easy mixing
- Hard scratch resistant cure
Product Gallery
Frequently Asked Questions
Do you offer samples before bulk purchase?
We welcome sample requests so you can verify the performance of DH-3239 in your specific application prior to large-volume purchasing.
What payment and delivery terms do you offer?
We accept T/T payments and normally deliver within 5-8 working days after confirmation. Shipping is arranged from our plant in China.
Is DH-3239 suitable for electronic potting applications?
DH-3239 works well in electronic potting compounds where low viscosity, thermal stability and insulation performance are required.
What is the recommended mixing ratio of DH-3239 with epoxy resin?
The recommended ratio is 100 parts liquid epoxy resin to 50 parts DH-3239 by weight when the resin EEW is about 190 g/eq. Adjust proportionally for resins with different epoxy equivalent weights.
How long is the pot life of DH-3239 at 25℃?
The usable time of a 100g mix is around 30-50 minutes at 25℃. For large-area projects, prepare material in smaller batches to stay within the open time.
Can DH-3239 be used in self-leveling floor coating systems?
Yes. Its viscosity of 300-500 mPa﹥s allows excellent flow and leveling, producing smooth, bubble-free surfaces in self-leveling epoxy floors. It is one of the most common uses of this hardener.
