prepainted galvanized corrugated steel roofing sheets
prepainted galvanized corrugated steel roofing sheets 0.12-2.0mm 600-1250mm various color/7 year's experience /SGS
Product Description :
| Raw material | SGCC, SPCC, DC51D, SGHC,A653 |
| Certificate | ISO9001.ISO14001.OHSAS18001 |
| Thickness | 0.12mm-2.0mm |
| Width | 600mm-1250mm, or according to the customer's request |
| Tolerance | thickness+/-0.01mm |
| Surface treatment | coated, priting, copper coated, spray painted, color coated, chromate, ppgi steel sheet |
T Bending (top-coating) T Bending (back-coating) | ≤ 3T ≤ 4T |
| Anti-MEK Wiping | 100times |
| Zinc coating | 40-275g /m2 |
| Coil ID | 508mm / 610mm |
| Type of coating structure | 2/1 or 2/2 coating, or customized |
| Standard | JIS G3302 / JIS G3312 / ASTM A653M / A924M 1998 / GB/T12754-2006, GB/T9761-1988, GB/T9754-1988, GB/T6739-1996, HG/T3830-2006, HG/T3830-2006, GB/T1732-93, GB/T9286-1998, GB/T1771-1991, GB/T14522-93 |
| Grade | Q195-Q235 and SPCC, SPCD, SPCE, SGCC (DX51D+Z) SGCD (DX52D+Z), etc. |
| Color | RAL / customized |
| Application | Building industry ,structural use, roofing, commercial use ,household appliance,industry facilities,office buildings |
| Surface protection | PE, PVDF, SMP, HDP, etc. |
Coating Chief Feature
| Project | Pencil hardness | Reverse impact | T bending | Cupping test | MEK cleaning |
| Front/back | H/2H | 9J/6J | 3T/4T | 6mm/4mm | 100time/50time |
Structure of CORRUGATED ROOFING SHEET
| Item | Thickness | Type | Feature |
| Laminated film | 50m | Polyethylene | Protecting from scratchs and contamination (option) |
| Top coat | 20m | Polyester Fluorine | Chemical resistance and formability |
Primer coat | 5m | Polyester | Workability, corrosion resistance and adhesion to the primer coating |
| Chemical treatment | 1m | Chromate | Good adhesion and corrosion resistance |
| Substrate | 0.2mm-1.2mm | GI.GL,AL | GI.GL,AL |
| Back coat | 52m | Epoxy | Corrosion resistance and adhesion to the substrate |
