1. Brief Introduction
CM633 is a polycarboxylic OH matting agent. It can suitable for EP and E/P powder coating. At 60o gloss, the gloss can be reduced from 5-50% by using CM633.
2. Specification
|
Appearance |
White fine powder |
|
OH Amount（g/eq） |
About100 |
|
Melting range（oC） |
175~185 |
|
Volatile（%） |
≤1 |
3. Properties
① Comparing to the Matting made of salt of an organic polycarboxylic acid with a cyclic amidiine, CM633 is more suitable for white and light color powder coating; CM633 won’t yellowish even though the powder coating is over baked.
② Very good mechanical properties.
③ The gloss of the powder coating will be affect little by the condition of extrude and bake temperature.
4. Application
① Hybrid: Epoxy resin=CM633OH+polyester OH.Epoxy:CM633=11-12% Epoxy resin.
② CM633 have different effect in the different polyester resin, so need to adjust formulation. Hybrid: select high acid value or low acid value polyester.
③ Accelerate Agent will effect the matt result of CM633, so add 2-5% Accelerate Agent (ZC-1), as to get good mechanical properties and matting effective.
④ The fillers play important role to the flow of powder coating, suggest add non-particle filler in order to have good fluidity.
⑤ Extrude Temperature：110~120 oC.
⑥ Curing condition：190 oC/20~25min or 200 oC/15~20min.
5. Formulation
|
Material |
Amount |
|
E12 (epoxy resin) |
100 |
|
CM633 |
13 |
|
CM503 |
7 |
|
CM701 |
1 |
|
Benzoin |
0.5 |
|
BaSO4 |
20 |
|
R902 |
30 |
|
Castor-oil |
2 |
|
60oGloss |
≤5 |
|
Appearance |
Smooth |
|
Impact |
50/40 |
|
Yellowish |
≤2 |
6. Package and Storage
Packing with PE bag, Net weight
Keep in the cool and dry place, far away from fire, for 2 years.