产品展示
TP68 MATT HARDENER ( EPOXY SYSTEM )
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.
Technical Parameters
Item |
Test Methods |
Specification |
Appearance |
Visual |
Fine White Powder |
Melting Range（℃） |
GB/T617-2006 |
230-250 |
Acid value: |
460-480 |
|
Purity（%） |
GB/T1725-2007 |
≥99.00 |
Curing Condition：180℃ 20-25min 190℃ 10-12min 200℃ 8-10min | ||
Application
It is used for pure epoxy resin, epoxy\polyester hybrid powder coatings to achieve coatings with matt surface, excellent mechanic quality and wonderful appearance
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 |
Notice
Matt 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.
