Description: Matt Hardener XG603-1A and XG603-2A are the salts of poly-carboxylic acid with cyclic amidine. The hardeners, applied in suitable formulations can produce epoxy or Hybird coatings for matt or semi-matt gloss with very good flow and properties. Variation between matt and semi-matt surface can be obtained by suitable adjustment of formulation. Technical data: | XG603-1A | XG603-2A | Appearance | White powder | White powder | Melting range | 222~227¡æ | 240~250¡æ | Non volatile | 98.5% min | 98.5% min | Curing condition | 180¡æ/20-25min190¡æ/10-15min200¡æ/10-12min |
Application: XG603-1A and XG603-2A can be applied both in Epoxy and in Hybird powder coatings. Coatings formulated with XG603-1A can produce a gloss range from 5% to 10% in Epoxy system and from 10% to 70% in Hybrid system; with XG603-2A can produce a gloss range from 20% to 25% in Epoxy system and from 20% to 80% in Hybrid system. Coatings obtained with above matt hardeners are characterized by colour and gloss stability under normal curing conditions. Hybrid coatings with matt or semi-matt gloss may be obtained by replacing some of the polyester in the formulation with equivalent quantity of XG603-1A or XG603-2A. The following gives the formulations of matt hardeners for epoxy powder coatings: Gloss range Formulation | 15 ~ 25 | 15 ~ 25 | 5 ~ 10 | 5 ~ 10 | Epoxy Resin (EEW850~1000) | 54.5wt% | / | 54.5wt% | / | Epoxy Resin (EEW750~850) | / | 54.0wt% | / | 54wt% | XG603-1A | / | / | 5wt% | 5.5wt% | XG603-2A | 5wt% | 5.5wt% | / | / | GLP588 | 1wt% | 1wt% | 1wt% | 1wt% | TiO2 | 39.5wt% | 39.5wt% | 39.5wt% | 39.5wt% |
Packaging:Available in polyethylene-lined, multi-ply paper bags, N.W. 20KGS/Bag. Storage and Handling:Store in closed containers; avoid contact with skin and eyes; wear dust mask when operating. | 
