Color Coated Steel Coil/Sheet(PPGI/PPGL)
Primers
Epoxy – Polyester (Chrome – Chrome Free); for excellent corrosion and inter-coat adhesion. The Back Coat of the PPGI/PPAZ strip is Generally Polyurethane(PU)-Compatible Epoxy coated in order to have adhesion in case the coils are used for insulated sandwich panel manufacturing.
Topcoats - R.M.P (Regular Modified Polyester)
Regular Modified Polyester is most widely-used coil coating with durable Polyester paint and heat dried. It is applied to interior/exterior materials with no heavy drawings. Thanks to its variable colours and glosses with an economic feasibility. RMP coated products are used for exterior panels and interior design purposes that do not require excessive processing. It generally displays superior workability, durability, and weather resistance and used for a variety of purposes; offered in a wide array of colours and degrees of polish.
Matt and wrinkle effect can be added to the top finish.
End Usage:
- Roofing & siding panels
- Interior Partition
- Building Interior/Exterior
- Sandwich panels
- Roof, Gutter
- Steel furniture
- Shutter, Door, Garage Door, Iron Frame, etc.
Topcoats - S.M.P (Silicon Modified Polyester)
Silicon Modified Polyester is a silicon resin modified Polyester paint coated and heat dried. Due to its higher durability than the Regular Polyester, generally applied for building construction. SMP assures economic benefits under circumstances of sea-side or industrial zones. 10-15 years limited warranty provided.
SMP products are coated and baked with paint containing silicon resin. It is suitable for coastal area due to its excellent weather resistance.
End Usage:
- Public Construction Material
- Sandwich Panel
- Corrugated Roof in Industrial Complexes
- Airport, etc.
Color Coated Steel Coil/Sheet(PPGI/PPGL) Specifications
| Specification Item | Details & Options |
|---|---|
| Application | Household appliances, Decoration, Construction, Automotive |
| Base Plate | Galvanized sheet, Galvalume sheet, Zinc-aluminum-magnesium, Aluminum-zinc-magnesium, Aluminum-magnesium-manganese |
| Structure of Coating | Double-Coating + Double-Baking, Triple-Coating + Triple-Baking + Monochrome Printing, Color Printing + Hot Laminating + Embossing |
| Internal Dia. | 508/610mm |
| Coil Weight | 3-7 Tons |
| Size | Thickness: 0.11-1.5mm | Width: 600-1500mm |
Coating Description
| Type of Coating | Base Coil | Coating (um) | MEK | T Bend | 5% HCl | Neutral Salt Spray | Common Environment Warranty |
|---|---|---|---|---|---|---|---|
| Polyester (PE) | Z/AZ/ZM/AZM | ≥20 | ≥100 | 3T | 24 h | 1000 h | 10 years |
| Silicon Modified Polyester (SMP) | Z/AZ/ZM/AZM | ≥23 | ≥100 | 3T | 24 h | 1500 h | 15 years |
| High Weatherability Polyester | Z/AZ/ZM/AZM | ≥23 | ≥100 | 3T | 24 h | 1500 h | 15 years |
| Fluorocarbon (PVDF) | Z/AZ/ZM/AZM | ≥25 | ≥100 | 2T | 24 h | 1500 h | 15 years |
| High Corrosion & Weather Resistance Polyester (HDP Pro) | Z/AZ/ZM/AZM | ≥25 | ≥100 | 2T | 24 h | 1500 h | 20 years |
Production Process
Frequently Asked Questions (FAQ)
What is the difference between PPGI and PPGL?
PPGI refers to Pre-painted Galvanized Steel, which has a pure zinc coating base. PPGL refers to Pre-painted Galvalume Steel, which features an aluminum-zinc alloy base coating. PPGL typically offers higher corrosion resistance, while PPGI offers better formability.
What types of primers are used for color coated steel coils?
Epoxy-Polyester primers (both Chrome and Chrome-Free) are commonly used to provide excellent corrosion resistance and ensure strong adhesion between the base metal and the topcoat.
What are the main differences between RMP and SMP coatings?
RMP (Regular Modified Polyester) is highly cost-effective and widely used for standard interior and exterior applications. SMP (Silicon Modified Polyester) incorporates silicon resin, providing superior durability, weather resistance, and a longer warranty (10-15 years), making it ideal for coastal or industrial environments.
Which base plates can be used for color coated steel coils?
Available base plates include Galvanized sheet, Galvalume sheet, Zinc-aluminum-magnesium, Aluminum-zinc-magnesium, and Aluminum-magnesium-manganese, depending on the required corrosion resistance and application.
What is the typical lifespan of HDP Pro coating?
HDP Pro (High corrosion resistance and weather resistance polyester) features a coating thickness of ≥25 um and offers an exceptional lifespan of up to 20 years in common environments, along with superior chemical and salt spray resistance.