제품 사양
Test item | Method | Standard | |||
---|---|---|---|---|---|
Appearance | Visual inspection | By actural standard sample | |||
Glossy Level | 60℃ glossmeter | Not application | |||
Erichsen | Cross cutting 5mm interval Pushing by 6mm in depth in erichsen |
No peeling | |||
Impact | Drop 500g &1/2inch Dupont diameter steel Ball from 50mm height three time |
No peeling, No crack | |||
Pencil Hardness | Using Mitsubishi UMP-I-803-18 Checking Pencil Trace mark when mark down at 45º direction With 500g pressure. |
Over B grade | |||
Salt Spray Test |
Flat Surface | CR | 240Hrs | Spray with salt solution with 35℃ | No change of surface |
EGI | 360Hrs | ||||
Cross Cut | CR | 90Hrs | Cross cut with laser blade Till it slightly touches base Metal and then as same as above |
Rust spread winthin 4mm from The cross cutting edge |
|
EGI | 240Hrs | ||||
Resistance to Alkalies | 20±5℃×5% NaOH×72Hrs | No change of surface | |||
Resistance to Acids | 20±5℃×5% CH₃COOH×72Hrs | No change of surface | |||
Resistance to Boiling Water | 95℃ water × 2Hrs and leave it for 1hr and Crosscut base on | No rust peeling, crack and blister | |||
Bending test | 180º 1T bending alt 20℃[EGI] 180º 0T bending alt 20℃[CR] |
No crack and peeling | |||
color variance of PET/AI Film | Visual tester and color difference meter | less than E 0.8 |
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产品咨询
- 咨询处 三洋钢铁
- 邮箱 steel@samyangchem.co.kr