Pre-Painted Galvanized (PPGI) Coils
Pre-painted galvanized steel coils in PE, SMP, HDP and PVDF paint systems on Z120 / Z180 / Z275 substrate, supplied in any RAL colour for roll-forming, fabrication and architectural cladding.
Technical overview.
PPGI is a coil-coated galvanized steel; the GI substrate is continuously cleaned, chemically pre-treated, primer-coated and finished with a top-coat paint system on a coil coating line. The result is a uniform factory finish that outperforms post-painted steel in adhesion, colour consistency and service life.
Pre-Painted Galvanized Iron (PPGI) is a galvanized steel coil that has been coated on a continuous coil-coating line with a primer and one or two top-coat paint layers. Paint chemistry (PE, SMP, HDP, PVDF) is selected based on exposure and required service life; substrate coating (Z120 – Z275) is selected based on cut-edge and back-side corrosion requirements; colour is specified in the RAL system.
Configured to your specification.
PPGI Coils is produced to project requirement. Specify the parameters below and we'll revert with a quote, mill availability and lead time.
Substrate, coating, certification.
Where ppgi coils is specified.
- Architectural roofing & wall cladding
- Industrial & commercial building envelope
- Sandwich panels (EPS / PU / rockwool)
- Garage doors & shutter slats
- White goods & appliance casings
- HVAC ducting & ceiling systems
- Furniture & partition systems
- Highway & infrastructure signage
Substrate zinc coating.
PPGI is built on a galvanized substrate; the zinc layer beneath the paint determines cut-edge corrosion life and back-side performance.
| Grade | Zinc (g/m²) | Per face | Service life | Typical use |
|---|---|---|---|---|
| Z60 | 60 g/m² | ≈ 30 g/m² / face | Internal / dry, short-life | Internal dry-wall studs, internal HVAC ducting, painted secondary use |
| Z80 | 80 g/m² | ≈ 40 g/m² / face | Internal / mild exposure | Door frames, sheet-metal fabrication, internal cladding, white-goods |
| Z100 | 100 g/m² | ≈ 50 g/m² / face | Mild atmospheric: 10 – 15 years | Light roofing, internal ducting, fabrication, PPGI substrate (entry) |
| Z120 | 120 g/m² | ≈ 60 g/m² / face | Atmospheric: 15 – 20 years | Commercial roofing, PPGI substrate, sandwich panels, fabrication |
| Z180 | 180 g/m² | ≈ 90 g/m² / face | Industrial / coastal: 20 – 30 years | Industrial roofing, PEB envelope, coastal commercial roofing, PVDF substrate |
| Z275 | 275 g/m² | ≈ 137.5 g/m² / face | Heavy industrial / coastal: 30 – 50+ years | Long-life roofing, coastal cladding, infrastructure, premium PPGI |
PE · SMP · HDP · PVDF.
Paint chemistry determines colour life, UV resistance and coastal suitability. Specify based on project life and exposure category.
Polyester
Economical roofing & cladding, inland exposure, short-life projects
Silicone-Modified Polyester
Commercial roofing in moderate UV / atmospheric exposure
High-Durability Polyester
Long-life industrial roofing, GCC inland & semi-coastal projects
Polyvinylidene Fluoride (Kynar 500 / Hylar 5000)
Architectural facades, coastal Gulf, premium long-life roofing
Any RAL: stock and bespoke.
Certified to international specification.
PPGI Coils: answered.
Send your ppgi coils requirement.
Share thickness, width, zinc coating, paint system and RAL colour and quantity. We will revert with availability, lead time and pricing within one working day.