Prepainted Steel Coil - PPGI/PPGL

Multiple coating grades PE/SMP/HDP/PVDF for different anti‑weathering lifespan
Two substrate options: GI for PPGI, Aluzinc GL for PPGL for harsh coastal environment
Full RAL color palette, support custom printed & metallic finish
Meet ASTM / JIS / EN / GB standards, supply MTC for every export batch

Product Overview

Prepainted Steel Coil – PPGI/PPGL is a color coated steel material produced by continuously applying an organic paint coating onto a galvanized (GI) or galvalume (GL) steel substrate. PPGI uses hot-dip galvanized steel, while PPGL uses a 55% Al-Zn galvalume substrate for enhanced corrosion resistance.

Available substrate grades include DX51D+Z to DX56D+Z for PPGI and DX51D+AZ to DX56D+AZ for PPGL. The total thickness range is 0.12–1.5mm, with 0.17–1.5mm as the mainstream production range, while standard widths include 914, 1000, 1219 and 1250mm.

The product is available with PE, SMP, HDP and PVDF coating systems to suit different weathering and environmental requirements. Front coating thickness is 18–25 μm and back coating thickness is 5–10 μm, with thicker customized coatings available.

A full RAL1000–RAL9018 color range is available, together with special finishes such as metallic, pearl gloss, camouflage, wood-grain and marble-pattern coatings. The coils can also be slit, cut to length or roll formed for downstream fabrication, making them suitable for roofing, wall cladding, facades, photovoltaic projects, containers and industrial applications.

Prepainted Steel Coil - PPGI/PPGL

Chemical & Mechanical Property Snapshot

Grade	C (Max)	Mn (Max)	P (Max)	S (Max)	Yield Strength Rp0.2 (MPa)	Tensile Strength Rm (MPa)	Elongation A80 (%)	Substrate
DX51D+Z / DX51D+AZ	0.12	0.60	0.10	0.045	240–380	270–500	≥22	PPGI / PPGL
DX52D+Z / DX52D+AZ	0.12	0.60	0.10	0.045	220–350	260–420	≥26	PPGI / PPGL
DX53D+Z / DX53D+AZ	0.10	0.45	0.07	0.035	200–300	250–380	≥30	PPGI / PPGL
DX54D+Z / DX54D+AZ	0.08	0.40	0.06	0.030	180–260	240–350	≥34	PPGI / PPGL
DX55D+Z / DX55D+AZ	0.06	0.35	0.05	0.025	160–240	230–330	≥36	PPGI / PPGL
DX56D+Z / DX56D+AZ	0.05	0.30	0.04	0.020	140–220	220–310	≥38	PPGI / PPGL

Detailed Technical Specifications

Item	Specification
Product Name	Prepainted Steel Coil – PPGI/PPGL
Product Type	Prepainted Galvanized Steel Coil / Prepainted Galvalume Steel Coil
PPGI Substrate	Galvanized Steel
PPGL Substrate	Galvalume Steel
PPGI Main Grades	DX51D+Z, DX52D+Z, DX53D+Z, DX54D+Z, DX55D+Z, DX56D+Z
PPGL Main Grades	DX51D+AZ, DX52D+AZ, DX53D+AZ, DX54D+AZ, DX55D+AZ, DX56D+AZ
ASTM Grades	CS / DS / DDS / EDDS / SS Gr33 / SS40 / SS50 + Z for PPGI; ASTM A792 reference for PPGL
JIS Grades	SPCC+Z, SPCD+Z, SPCE+Z for PPGI; JIS G3321 reference for PPGL
Applicable Standards	ASTM A755/A755M, JIS G3312, GB/T 12755, EN 10169; PPGL substrate also references ASTM A792
Coating Types	PE, SMP, HDP, PVDF
PE Service Life	Approx. 5–8 years according to the provided product material
SMP Service Life	Approx. 10–15 years according to the provided product material
HDP Service Life	Approx. 15–20 years according to the provided product material
PVDF Service Life	Approx. 25–30 years according to the provided product material
Front Paint Thickness	18–25 μm
Back Paint Thickness	5–10 μm
Primer / Coating System	Customizable coating system according to application requirements
Color Range	RAL international color range, RAL1000–RAL9018
Available Colors / Finishes	Pearl gloss, metallic, camouflage, wood grain, marble pattern and other specified finishes
Steel Thickness	0.12–1.5 mm
Common Thicknesses	0.17 / 0.20 / 0.25 / 0.30 / 0.35 / 0.40 / 0.50 / 0.60 / 0.70 / 0.80 / 1.00 / 1.20 / 1.50 mm
Standard Widths	914 / 1000 / 1219 / 1250 mm
Coil Inner Diameter	508 mm
Coil Packaging	Standard export packaging; customized packaging options can be discussed
Surface Treatment	Anti-fingerprint, protective film, coating and other specified surface treatments
Processing Options	Slitting, cut-to-length, roll forming
Edge / Shape Processing	Suitable for subsequent profiling and forming according to customer requirements
Typical Applications	Steel structure buildings, exterior and interior wall panels, roofing panels, factory buildings, warehouse panels, container panels, mobile houses, advertising boards, farm buildings and related construction applications
Customization	Thickness, width, coating system, color, surface finish and processing requirements can be specified according to project requirements
MOQ	5 Ton
Payment Terms	T/T, L/C at Sight
Delivery Time	7–15 working days after receiving deposit
Package	Waterproof paper + galvanized steel strap + seaworthy export wooden pallet

PPGI / PPGL Color Chart & Finishes

We supply PPGI and PPGL prepainted steel coil with full RAL solid color system and multiple customized pattern finishes. Gloss, matte, metallic, pearlescent, wood grain, marble grain, brick pattern, tile pattern and stucco texture options are available. Custom color & custom pattern are acceptable according to customer samples. Please note that slight color difference exists between screen display and real steel coil, physical color card can be provided for final confirmation before mass production.

Color Category	RAL No.	Color Name	Surface Finish	Application
White Series	RAL9010	Pure White	Gloss / Matte	Roofing, wall cladding, containers
White Series	RAL9002	Off White	Gloss / Matte	Building facades, warehouse panels
Grey Series	RAL7035	Light Grey	Gloss / Matte	Factory walls, equipment shells
Grey Series	RAL7024	Graphite Grey	Gloss / Matte	Roof tiles, exterior decoration
Grey Series	RAL9006	Silver Grey (Metallic)	Metallic Gloss	Roof decorative panels
Red Series	RAL3009	Oxide Red	Gloss	Corrugated roofs, agricultural buildings
Red Series	RAL3020	Traffic Red	Gloss / Matte	Doors, advertising boards
Blue Series	RAL5005	Signal Blue	Gloss	Factory roofing, enclosures
Green Series	RAL6005	Moss Green	Gloss / Matte	Warehouse roofs, farm buildings
Brown Series	RAL8017	Chocolate Brown	Gloss / Matte	Villa roofs, wall panels
Pattern Series	Custom	Wood Grain	Embossed Printed Texture	Interior & exterior walls, villa roofing
Pattern Series	Custom	Marble Grain	Printed Texture	Wall cladding, decorative panels
Pattern Series	Custom	Camouflage Pattern	Printed Coating	Special engineering projects, warehouse enclosures
Pattern Series	Custom	Brick Pattern	Embossed Printed Texture	Building facade decoration
Pattern Series	Custom	Tile Pattern	Printed Texture	Imitation tile roofing sheets
Pattern Series	Custom	Stucco Texture	Embossed Matte	Exterior wall panels

Product Comparison Table

Specification	PPGI	PPGL
Product Type	Prepainted Galvanized Steel Coil	Prepainted Galvalume Steel Coil
Base Material	Galvanized Steel Substrate (Hot-Dip GI)	55% Al-Zn Galvalume Steel Substrate (GL)
Main Grades	DX51D+Z, DX52D+Z, DX53D+Z, DX54D+Z, DX55D+Z, DX56D+Z	DX51D+AZ, DX52D+AZ, DX53D+AZ, DX54D+AZ, DX55D+AZ, DX56D+AZ
US Standards / Grades	CS / DS / DDS / EDDS / SS Gr33 / SS40 / SS50 + Z Coating	CS / DS / DDS / EDDS / SS Gr33 / SS40 / SS50 + AZ Coating
JIS Grades	SPCC+Z, SPCD+Z, SPCE+Z	SPCC+AZ, SPCD+AZ, SPCE+AZ
ASTM Reference	ASTM A755/A755M	ASTM A792
Main Coating Systems	PE / SMP / HDP / PVDF	PE / SMP / HDP / PVDF
PE Coating	Polyester coating for general outdoor use; typical service life 5–8 years	Polyester coating for general outdoor use; typical service life 5–8 years
SMP Coating	Silicon Modified Polyester; typical service life 10–15 years	Silicon Modified Polyester; typical service life 10–15 years
HDP Coating	High Durability Polyester; typical service life 15–20 years	High Durability Polyester; typical service life 15–20 years
PVDF Coating	PVDF coating; typical service life 25–30 years	PVDF coating; typical service life 25–30 years
Recommended Environment	General buildings, outdoor roofing and wall applications; coating selected according to environment	Coastal, high humidity & corrosive outdoor environments where superior anti-corrosion performance is required
Front Paint Thickness	18–25 μm	18–25 μm
Back Paint Thickness	5–10 μm	5–10 μm
Customized Coating	Available	Available
Color Range	RAL international color range, RAL1000–RAL9018	RAL international color range, RAL1000–RAL9018
Special Finishes	Pearl gloss, metallic, camouflage, wood grain, marble pattern	Pearl gloss, metallic, camouflage, wood grain, marble pattern
Thickness	0.12–1.5 mm; common 0.17 / 0.2 / 0.25 / 0.3 / 0.35 / 0.4 / 0.5 / 0.6 / 0.7 / 0.8 / 1.0 / 1.2 / 1.5 mm	0.12–1.5 mm; common 0.17 / 0.2 / 0.25 / 0.3 / 0.35 / 0.4 / 0.5 / 0.6 / 0.7 / 0.8 / 1.0 / 1.2 / 1.5 mm
Standard Widths	914 / 1000 / 1219 / 1250 mm	914 / 1000 / 1219 / 1250 mm
Coil ID	508 mm	508 mm
Processing	Slitting, cut-to-length, roll forming	Slitting, cut-to-length, roll forming
Protective Treatment	Anti-fingerprint, protective film and other surface treatments available	Anti-fingerprint, protective film and other surface treatments available
Typical Applications	Roofing and wall panels, factory buildings, warehouse panels, exterior wall insulation panels, container panels, advertising boards, mobile houses, farm buildings	Roofing and wall panels, factory buildings, warehouse panels, exterior wall insulation panels, container panels, advertising boards, mobile houses, farm buildings, coastal construction projects

App Market

Reliable Steel Coil Solutions For Diverse Industrial Applications

Industrial Factory Panels PPGI Steel

Container Sheets PPGI Steel

Rolling Shutters PPGI Steel

Product Packaging

Secure Export Packaging For Safe Handling And Delivery

FAQs

What is Prepainted Steel Coil - PPGI/PPGL?

Prepainted Steel Coil - PPGI/PPGL is color coated steel produced by applying an organic paint coating onto galvanized GI or galvalume GL substrate. PPGI uses GI, while PPGL uses a 55% Al-Zn galvalume substrate.

What is the difference between PPGI and PPGL?

PPGI uses a hot-dip galvanized GI substrate, while PPGL uses a 55% Al-Zn galvalume substrate. The PPGL configuration is intended for applications requiring enhanced corrosion resistance.

Which coating system should I choose?

PE, SMP, HDP and PVDF are available. The supplied product information associates them with different weathering and environmental requirements, with PVDF positioned for coastal and heavy-industrial corrosive applications.

Can the color and surface finish be customized?

Yes. The product supports the RAL1000–RAL9018 color range, together with special finishes such as pearl gloss, metallic sheen, camouflage, wood-grain and marble-pattern coatings.

Can the prepainted steel coil be slit or cut to size?

Yes. Available processing includes slitting, cut-to-length and roll forming for roof panels.

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Prepainted Steel Coil - PPGI/PPGL | Color Coated Steel