HAA Hardener for exterior durable powder coatings

K3120 is a poly-functional ß-hydroxyalkylamide crosslinking agent. As a substitute of TGIC, it is suitable for curing with carboxyl-terminated polyester or acrylic resin to provide TGIC-free based exterior durable powder coatings.

1. Typical properties

Herein described to be typical properties and do not constitute specification limits.

2.Characteristics

1. Non-toxic compared with TGIC, the resulting TGIC-free based exterior durable powder coatings are non-toxic, non-irritant to skin and safety to human body.
2. Proven weather-resistance and low temperature curing (150℃) property.
3. Exhibited enhanced charging properties so better powder transfer efficiency could be obtained.
4. Excellent flow and mechanical properties.
5. Improved anti-yellowing when used in combination with our developed specific degassing agent KW7500.

3.Use method & levels

1. Premix K3120 together with other ingredients of formulations before extrusion
2. Recommend to design formulation by weight parts of 95/5 [resin to K3120] for pure polyester resin with AV ca.34mg KOH/g; 96.5/3.5 for polyester resin with AV ca.22mg KOH/g.

4.Package & Storage

1. Packaging with PE lined Kraft paper bags. Net weight 25 kg per bag.
2. Store in cool dry place to avoid caking. Keep package closed after using. Keep away from fire.
   Based on our experience the shelf life of this product under above conditions is at least 2 years.