Product Overview
PPGI starts from a hot dip galvanized coil that is degreased, passivated, primed and then finished with a top and back coat that is oven cured. The top coat runs 18-25 microns and the back coat 5-10 microns, and adhesion is good enough to survive 0-2T bends and pressing without cracking or flaking. Colour is checked coil by coil with a spectrophotometer against the RAL card, holding Delta E within 1.5 across one order so a large roof reads as one colour.
Specifications
| Parameter | Value |
|---|---|
| Thickness | 0.3 – 1.2 mm |
| Width | 600 – 1250 mm |
| Substrate zinc coating | 40 – 120 g/m2 |
| Top coat | 18 – 25 micron (polyester / SMP / PVDF) |
| Back coat | 5 – 10 micron |
| Standard colours | RAL 9002 / 9003 / 9010 / 5005 / 8017 / 3003 |
| Pencil hardness | 2H – 3H |
| T bend | 0 – 2T without cracking |
| Salt spray | 500 – 1000 h |
| Coil weight | 3 – 6 tons |
| Coil inner diameter | 508 mm |
Applications
Used for factory roofing and wall cladding, colour steel sheet production, container house and prefab building exteriors, cold storage panel skins and decorative covers on solar mounts. Main export markets are Southeast Asia, the Middle East, South America and Africa, where buyers specify a RAL number and order matching ridge caps and flashings in the same colour.
Packing / Delivery / Payment
Packed vertically or horizontally with moisture barrier paper, plastic film and steel edge protection, and labelled with colour code and heat number. A 20GP holds about 25 tons. Stock colours ship in 7-15 days, special shades in 25-35 days. Payment by L/C at sight or T/T with 30% deposit. Mill certificate, colour difference and coating test reports, RoHS declaration, SGS report, packing list and Certificate of Origin are provided.