|
Reverse Impact Test |
|
Adhesion of Polyester
Baking Enamel on CRS |
Conclusions:
1. Without adhesion promoter
(control>50% of coating removed
2. Addition of D-525.31 to the
graind stage sharply reduces coating removal as follows:
| Control |
50% |
| 2phr |
<1% |
| 3phr |
0% |
3. Excellent humidity and salt-fog resistance
|