Feature
Chemical grade Matt Hardener is a type of additive that is used in the formulation of SiO2 coatings to provide a matte finish
and enhance the hardness of the coating. This hardener is specifically designed for use in industrial applications where a
durable and scratch-resistant coating is required.
When added to the SiO2 coating formulation, the matt hardener helps to improve the adhesion of the coating to the substrate,
increase its resistance to abrasion and scratches, and provide a uniform matte finish. It also helps to enhance the overall
durability and longevity of the coating.
Overall, chemical grade matt hardener is an essential component in the formulation of SiO2 coatings for industrial applications
where a high level of hardness and durability is required.
Specifications
| Matt Hardener HF68 |
| Appearance | White Powder |
| Melting point(℃) | 100-125 |
| Solid Content (%) | ≥97.0 |
| Curing Conditions | 180℃ 20~25 min,190℃ 12~15 min,200℃ 8-12 min |
Properties
| Type of Matt Hardener | Matt Hardener HF68 |
| Type of Powder Coating | Hybrid |
|
| Gloss(60°)% | 5-8 |
|
| Impact Strength(kg*cm) | ≥50 |
|
| Cross-hatch Adhesion | Grade 1 |
|
| Level ability of Film | Smooth |
|
Recommended Formulation
| Type of Powder Coating | Hybrid |
| Polyester Resin (Weight %) | 53 |
| Matt Hardener (Weight %) | 4.5 |
| Leveling Agent (Liquid,Weight %) | 1 |
| Filler & Pigment (Weight %) | 41 |
Use low acid value polyester .Formulations can be adjusted by using different materials.
Application
1.HF-68 can be applied in epoxy powder system to generate the strong matte effect, terrific leveling performance and stable comprehensive properties. It can be used for pure epoxy and epoxy/polyester hybrid powder systems as a hardener, preparing coatings with super matte surface, excellent mechanical property and good reproducibility characteristic.
2. Pre-mix and Co-extrusion [One-Shot Method]
Advantage
1. One-shot effect:No dry-blending is required.
2. Durability:Very good weathering resistances
3. It has good color stability & mechanical properties, as well as good stability both during processing and storage.
Anticorrosion Pigments, Inkjet Receptive Coating, Matting Agent
