Description
Matt Hardener Tp68 for Pure Epoxy Powder Coating1.Description
Matt Hardener TP68 is a composed salt of cyclic-amidine and multi-acid. It utilizes the two different reaction rates of group in molecular structure, and during the curing process, it generates non-uniform shrinkage then forms the matt surface. It has both gloss decreasing and curing functions.
2.Technical Parameters
| Item | Test Methods | Specification |
| Appearance | Visual | Fine White Powder |
| Melting Range(ºC) | GB/T617-2006 | 230-250 |
| Acid value: | | 460-480 |
| Purity(%) | GB/T1725-2007 | ≥99.00 |
| Curing Condition:180ºC 20-25min 190ºC 10-12min 200ºC 8-10min |
3.ApplicationIt is used for pure epoxy resin, epoxy\polyester hybrid powder coatings to achieve coatings with matt surface, excellent mechanic quality and wonderful appearance.
4.Reference formulation
| Item | Epoxy | Epoxy-Polyester |
| Epoxy Resin E12 | 110 | 440 |
| Polyester Resin TP5050 | | 60 |
| Matt Hardener TP68 | 9 | 38 |
| Flowing Agent TP503 | 8 | 10 |
| Moistening Agent TP701 | 1 | 6 |
| Benzoin | 1 | 4 |
| Titanium Dioxide R902 | | 1 |
| Filler(BaSo4 ,CaCo3) | 65 | 1 |
| Carbon Black | 0.8 | 1 |
| Gloss 60° | <5 | 10-20 |
| Visual inspection | Flow and smoothly | Flow and smoothly |
| Impact (positive/back flush) | 50/40 | 50/50 |
| Adhesion (cross-cut method) | 100% pass | 100% pass |
5.NoticeMatt Hardener is not as compatible with the resin as it has a high melting point. To avoid this default it's necessary to distribute them or to make the curing temperature at a higher level. In case of epoxy\polyester hybrid powder coatings, the polyester should be low acidity. Before achieving the ideal gloss and multiple characteristics tests are needed.
6.Package & Storage & Handling
- Store in a cool, dry place and avoid contact with other chemical products. Sealed after use. Since this product is irritating to the respiratory tract, wear a dust mask and gloves during operation.
- Package: 25kgs/polyethylene-lined Kraft paper-plastic compound bag.
- It is valid for one year at room temperature.
Complaint
