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Quality Characteristics


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

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 /
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

≥10001250

≤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.