Changzhou Dingang Metal Material Co.,Ltd.
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26 Gauge Thick Pre-painted Aluminum Used For Roofing Corrugated Sheet
PPAL which full named pre-painted aluminum or color coated aluminum,which is produced with aluminum sheet or coil and processed by coating with color or pattern.
Compared with steel material,prepainted aluminum coil is the more popular material.
Due to its excellent property. The first is that aluminum is very stable then the surface is erosion resistant,warranty could up to 30 years long after special treatment.Then,the density is the lowest among metal material when volume is fixed.
Specifications:
Alloy:AA1100,3003,3004,3105,5052 and Etc
Temper:H16/H18/H24
Standard: ASTM
Thickness:0.40mm (26 Gauge)
Width:500-1200mm
Paint Layer Thickness: (PVDF) above 25 micron; (PE) more than 18 micron
Interior Diameter: 505mm etc.
Color: Ral Color Code Or As Per Clients Requirements And Sample
Paint Performance:
| Test Item | Paint | ||||
| PVDF | PE And Others | ||||
| With Varnish | Without Varnish | ||||
| Paint Film Thickness, μ | ≥22 | ≥30 | ≥18 | ||
| Shine Tolerance | Shine≥80 Unit, ±10 Unit Allowed | ||||
| Shine≥20-80 Unit, ±7 Unit Allowed | |||||
| Shine<20 Unit, ±5 Unit Allowed | |||||
| Pencil Hardness | ≥1H | ||||
| Abrasion Resistance, L/μm | ≥5 | -- | |||
| T-bend | ≤2T | ≤3T | |||
| Impact Strength | 50KG.CM Without Depainting And Crack | ||||
| Adhesive Force (Class) | ≥1 | ||||
| Boiling Water Resistance | Unvarying | ||||
| Chemical Resistance | Acid Endurance | Unvarying | |||
| Alkali Stability | Unvarying | ||||
| Oil Resistivity | Unvarying | ||||
| Resistance To Solvent | ≥70 | ≥50 | |||
| Scrub Resistance | ≥10000 Times Unvarying | ||||
| Dirt Resistance | ≤15% | -- | |||
| Salt Spray Resistance(class) | ≥ 2 class | -- | |||
Packing:
Export Standard Seaworthy Packing With Wooden Pallets In Horizontal Or Vertical (As Per The Requirements Of Clients)
Appliance:
As per types of surface coating of paint,coated aluminum coils can be divided into polyester (PE) coated aluminum coil, fluorocarbon (PVDF) coating aluminum coil and epoxy coated aluminum coil.
Color coated aluminum coil is widely used in the roofing and cladding system,ceiling system,curtain wall plate,shutter,gutter,composite panel, can, home appliances board and embossed aluminum coil.