Using Hot Dip Galvanized Steel Coil as the substrate, PPGI is made
by first going through surface pretreatment, then the coating of
one or more layers of liquid coating by roll coating, and finally
baking and cooling. The coatings used including polyester, silicon
modified polyester, high-durability, corrosion-resistance and
formability.
Production Process
1. raw material steel coil
2. cold rolled steel coil
3. Zinc or Alu-Zinc coating
4. annealing
5. color coated steel coil
6. packing
Features
1. Anti-corrosion and moisture-proof construction convenience
2. Good ductility and strong moisture-proof function.
3. 0.1-0.15mm kraft paper has high strength bonding.
4. Liner and top grade stadiums can be composited with kraft paper.
There are two processes for covering kraft paper on the surface of
aluminium roll:
First: The kraft paper used on the surface is self-adhesive bonded
by glue, which has the advantages of high production efficiency,
timely delivery and low production cost.
Two: The kraft paper and aluminium roll are bonded together by
heating.
After covering kraft paper, the aluminium roll can be further
processed to make embossed aluminium roll.
Parameter
| Product Name | PPGI, Prepainted Galvanized Steel Coil |
| Technical Standard | ASTM DIN GB JIS3312 |
| Grade | SGCC SGCD or customer's requirement |
| Type | Commercial Quality/DQ |
| Thickness | 0.13-2.0mm |
| Width | 600-1500mm |
| Zinc Coating | 40-275 g/m2 |
| Color | all RAL Colors, or According to Customers Require/Sample |
| Top Side | Primer paint+polyester paint coating |
| Back side | Primer epoxy |
| Coil Weight | 3-8 tons per coil |
| Package | Standard export package or customized |
| Hardness | >=F |
| T Bend | >=3T |
| Reverse Impact | >=9J |
| Salt Spray Resistance | >=500 hours |
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