Accelerated Weathering Test
Atmospheric Exposure Test
Standard Thickness of Coating Film
(㎛)
Classification |
PGS |
PSP |
PVDF |
ARS |
PCS |
||
One side |
Face |
Finish coat |
15 - 20 |
15 - 20 |
20 - 25 |
20 - 25 |
15 - 20 |
Prime coat |
5 |
5 |
5 |
5 |
5 |
||
Back |
Back coat |
4 - 6 |
4 - 6 |
4 - 6 |
4 - 6 |
4 - 6 |
|
Face |
Finish coat |
15 - 20 |
15 - 20 |
20 |
20 - 25 |
- |
|
Prime coat |
5 |
5 |
5 |
5 |
- |
||
Back |
Finish coat |
15 - 20 |
15 - 20 |
20 |
20 |
- |
|
Prime coat |
5 |
5 |
5 |
5 |
- |
Physical Properties of Coat
Item / |
PGS |
PSP |
PVDF |
ARS |
PCS |
Glossiness |
Reference |
Reference |
Reference |
Reference |
Reference |
Workability |
2T |
2T |
2T |
Refer to |
0T |
Pencil hardness |
B Above B |
B Above B |
B Above B |
H Above B |
HB Above B |
Hardness of |
Over 50 |
Over 100 |
Over 100 |
Over 50 |
Over 50 |
(㎜)
Classification |
Tolerance |
Width |
+7 |
Length |
+15 |
Application |
Classified code |
Thickness indicated |
Classified code of base metal |
For common use |
CGCC |
≥0.25 ≤1.6 |
SGCC |
For structure |
CGC340 |
≥0.25 ≤1.6 |
SGC340 |
(㎜)
Width / Length |
Steel sheet Maximum Values of Transerverse bending |
Steel coil |
|
<2000 |
≥2000 |
||
<630 |
4 |
For any length 4/2,000 4/2,000 for arbitrar length |
|
≥630 |
2 |
For any length 2/2,000 2/2,000 for arbitrar length |
(㎜)
Width / Classification |
Warping |
Brim wave |
Middle wave |
<1000 |
≤12 |
≤8 |
≤6 |
≥1000<1250 |
≤15 |
≤10 |
≤8 |
Flatness shall be measured on a flat table and its value shall be that the strained max. less the thickness of steel sheet, applicable to the upper surface of the steel sheet.