Quality Characteristics

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Accelerated Weathering Test

Atmospheric Exposure Test

Standard Thickness of Coating Film

(㎛)

Classification			PGS	PSP	PVDF	ARS	PCS
One side Tow sides	Face	Finish coat	15 - 20	15 - 20	20 - 25	20 - 25	15 - 20
	Face	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	-
	Face	Prime coat	5	5	5	5	-
	Back	Finish coat	15 - 20	15 - 20	20	20	-
	Back	Prime coat	5	5	5	5	-

Physical Properties of Coat

Item / Criteria / Classification	PGS	PSP	PVDF	ARS	PCS
Glossiness	Reference value ±3%	Reference value ±3%	Reference value ±3%	Reference value ±3%	Reference value ±3%
Workability	2T No peeling off	2T No peeling off	2T No peeling off	Refer to the test	0T No peeling off
Pencil hardness	B Above B	B Above B	B Above B	H Above B	HB Above B
Hardness of coating film	Over 50 times	Over 100 times	Over 100 times	Over 50 times	Over 50 times

Tolerance of Width and Length

(㎜)

Classification	Tolerance
Width	+7 0
Length	+15 0

Classification and Code

Application	Classified code	Thickness indicated	Classified code of base metal
For common use For the common hard For stretching	CGCC CGCH CGCD1	≥0.25 ≤1.6 ≥0.11 ≤1.0 ≥0.40 ≤1.6	SGCC SGCH SGCD1
For structure	CGC340 CGC400 CGC440 CGC490 CGC570	≥0.25 ≤1.6 ≥0.25 ≤1.6 ≥0.25 ≤1.6 ≥0.25 ≤1.6 ≥0.25 ≤1.6	SGC340 SGC400 SGC440 SGC490 SGC570

Maximum of Lateral Bending

(㎜)

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

Flatness

(㎜)

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.