Description
AHA7570, an updated version of original AHA7550, is a glycidyl functional acrylic (GMA resin) matting hardener suitable for low gloss, exterior durable polyester powder coatings. This product, in conjunction with polyester with acid value ranges from 30 to 35mgKOH/g, provides more benefits such as improved shade and burnish resistance over original AHA7700 and AHA7550.
Typical properties
| Appearance | Granules |
| Soft point (℃) | 125-135 |
| Epoxy equivalent weight [EEW] | 450-550 |
| Volatiles (%) | ≤1 |
Application
AHA7570 is recommended as matting hardener used in low gloss exterior durable polyester powder coatings with improved black shade and burnish resistance. Additional cure catalyst AHA3163 may also be used in combination with AHA7570 to provide better mechanical and solvent resistance. AHA7570 shows following advantages against traditional GMA resins:
- Improved black shade
- Improved burnish resistance
- Gloss stable
- Excellent mechanical performance when used in conjunction with TGIC as co-reactant
Use level
Mix ratio of polyester to AHA7570: 75/25 by weight
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TDS AHA7570
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Tag:
Solid acrylics-
Does the product support customization? Yes, we support customization and can submit inquiries to contact us. Our experts will develop suitable solutions according to your needs.