D68 Low-Gloss Curing Agent
Structural Formula:
It is a composed salt of cyclic-amidine and multi-acid, equivalent to B68 of HüIs AG from Germany. D68 is a low-gloss curing agent making the film much lower gloss, with high mechanical strength and fine appearance, can be applied to epoxy/polyester compound powder coating as curing agent. With different prescriptions, it can adjust the glossy randomly with comprehensive performance.
Technical Specification:
Appearance: white powder
Purity: ≥98%
Melting range: 200℃—225℃
Usage:
1. It can get low-gloss in compound powder coating
2. It can get good comprehensive performance. with using PV99( Zhihua Chemical Brand) together
3. Recommended curing condition:
|
180℃
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20-25Minutes
|
|
190℃
|
10-12Minutes
|
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200℃
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8-10 Minutes
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Recommended prescription
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Content
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Source
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D68
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|
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Epoxy-resin
|
Compound resin
|
||
|
E12
|
Nanhai Chemical
|
110
|
95
|
|
CC340
|
Cytec Industries
|
|
40
|
|
Low-gloss curing agent
|
Zhihua Chemical
|
9
|
7
|
|
Pv99
|
Zhihua Chemical
|
8
|
8
|
|
Gloss enhancing agent
|
Zhihua Chemical
|
1
|
1
|
|
Benzoin
|
Zhihua Chemical
|
1
|
0.5
|
|
R902
|
Dupont
|
|
30
|
|
Super fine Barium
|
|
65
|
20
|
|
ZnO
|
|
5
|
|
|
CB
|
|
0.8
|
0.8
|
|
Gloss
|
60°
|
＜5
|
＜28
|
|
appearance
|
Eye-test
|
Smooth and glossy
|
Smooth and glossy
|
|
Impact
|
square impact /backlash
|
50/40
|
50/50
|
|
adhesion
|
Method of Scoring
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100% pass
|
100% pass
|