|
Curing conditions |
Standard curing 180±5℃/15-20min.
quick curing 180±5℃/5-10min. |
Major technical data of powder coatings
Properties of coating film
|
Item |
Data |
|
Appearance |
Smoothness, slight peels allowable |
|
Film thickness |
60-70μm |
|
Gloss (60o gaugehead) |
High-gloss surface 85-100%, sub-gloss surface 15-50% and non-gloss surface 5-10% |
|
Resistance to shock (drop weight method) |
Passing 50kgcm (4.9Nm) |
|
Cup-drawing test |
>6mm |
|
Indentation hardness |
Passing 4kg(39N) |
|
Bending test (cone core axis) |
Passing 2mm |
|
Adhesion of intersected placket |
100% adhesive |
|
Surface hardness |
2~3H |
|
Salt spray test |
Passing 1000 hours |
|
Wet fastness |
Passing 1000 hours |
|
Water immersion test |
Passing 300 hours |
|
Acid fastness (5%HCL) |
Passing 300 hours |
|
Alkali tolerance (5%NaOH) |
Passing 300 hours |
|
Petrol-resistance (120# gasoline) |
Passing 300 hours |