Pre-painted Galvanized Steel Coils - High-quality PPGI Coils for Construction & Manufacturing

Tianjin TISCO International Trade Co., Ltd.

Verified Custom manufacturer 5yrs

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Technical Specifications of Pre-painted Galvanized Steel Coils

Property	Parameter	Description
Product Name	Pre-painted Galvanized Steel Coils (PPGI)	Color-coated steel with organic coating on galvanized substrate
Base Material	Hot-dip Galvanized Steel (HDGI) / Galvalume	Zinc or aluminum-zinc coated steel base
Standard Compliance	ASTM A755, EN 10169, JIS G3312	Meets major international standards
Coating Type	Polyester (PE), Silicon Modified Polyester (SMP), PVDF, HDP	Multiple organic coating options
Zinc Coating Weight	40-275 g/m²	Z40 to Z275 per ASTM A653
Top Coat Thickness	15-25 μm	Standard topcoat thickness range
Back Coat Thickness	5-10 μm	Protective back coating
Thickness Range	0.13-1.5 mm	Available substrate thickness options
Width Range	600-1500 mm	Standard coil widths
Coil ID	508 mm / 610 mm	Inner diameter options
Coil Weight	3-8 tons	Standard coil weight range
Color Options	RAL, Pantone color charts available	Custom color matching service
Tensile Strength	≥270-550 MPa	Depends on base material grade
Yield Strength	≥140-350 MPa	Minimum yield strength per grade
Elongation	≥20%	Ductility in standard test
Pencil Hardness	≥2H	Surface hardness measurement
T-Bend Test	0T-3T	Coating flexibility test result
Application	Roofing, wall panels, appliances, construction	Typical application industries
Corrosion Resistance	Salt spray test ≥500 hours	Per ASTM B117 standard
Temperature Resistance	-40°C to +120°C	Service temperature range
Surface Treatment	Chromate / Chrome-free passivation	Pre-treatment options
Certification	ISO 9001, EN 10169, SGS	Quality certifications provided
Packaging	Waterproof paper, steel strapping, wooden pallet	Standard export packaging
MOQ	25 tons	Minimum order quantity per color

Pre-painted Galvanized Steel Coils - High-quality PPGI Coils for Construction & Manufacturing

Pre-painted galvanized steel coils represent a premium-grade solution for industries demanding superior corrosion protection combined with aesthetic versatility. These factory-applied coated steel products serve critical roles in architectural cladding, roofing systems, and appliance manufacturing, offering building professionals and fabricators a cost-effective alternative to traditional painting processes while ensuring consistent color quality and extended service life.

What is Pre-painted Galvanized Steel Coils?

Pre-painted galvanized steel coils are cold-rolled steel substrates that undergo hot-dip galvanization followed by continuous coil coating with organic paint systems. The manufacturing process applies zinc coating weights ranging from 60-275 g/m² per ASTM A653, then deposits primer and topcoat layers totaling 15-25 microns thickness, creating a durable composite material that combines the structural integrity of steel with outstanding resistance to corrosive environments.

Pre-painted Galvanized Steel Coils Technical Specifications

Our PPGI coils comply with ASTM A755/A755M-17 standards for metallic-coated steel substrates and feature base material thickness from 0.14mm to 1.2mm with tolerance of ±0.02mm. The zinc coating conforms to Z275 designation providing 275 g/m² total coating mass, while paint film adhesion achieves 0-1 rating per ASTM D3359 cross-hatch test, ensuring exceptional bonding performance under forming operations.

Why Choose Our Pre-painted Galvanized Steel Coils

We maintain mill-direct relationships with ISO 9001:2015 certified steel mills, enabling factory-competitive pricing on orders from 25 tonnes minimum. Our quality control laboratory performs pencil hardness testing per ASTM D3363, T-bend flexibility assessment, and salt spray exposure exceeding 1000 hours per ASTM B117, guaranteeing material consistency that meets stringent construction specifications for exterior building envelope applications.

Frequently Asked Questions

What is the minimum order quantity (MOQ)?

Our standard MOQ is 25 metric tonnes per color and specification. For high-volume construction projects requiring multiple coil widths, we accommodate mixed container loads with 15-tonne minimums per individual specification, provided total shipment meets 25-tonne threshold.

Do you provide material test certificates?

Yes, we supply EN 10204 Type 3.1 mill test certificates documenting chemical composition per ASTM A1008, mechanical properties including yield strength of 205-550 MPa depending on grade, and coating weight verification. Paint system certificates detail film thickness, color coordinates per ASTM D2244, and gloss measurements per ASTM D523.

What is the typical delivery time?

Standard color selections from our stocked inventory ship within 15-20 business days to major ports. Custom RAL or Pantone color matching requires 35-45 days production lead time, as paint formulation undergoes spectrophotometer verification and sample approval before full coil coating commences at our partner facilities.

Can you cut to custom sizes?

Our precision slitting capabilities accommodate widths from 600mm to 1,250mm with tolerance of ±3mm. We provide cut-to-length services for sheets ranging 1,000mm to 6,000mm, maintaining edge straightness within 2mm per meter. Blanking services for complex profiles require technical drawing submission for tooling assessment and quotation.

Pre-painted galvanized steel coils supplier

Get a Competitive Quote for Pre-painted Galvanized Steel Coils

Request your project-specific quotation by submitting specifications including required coating designation, paint system preference, coil dimensions, and annual volume projections. Our technical sales team responds within 24 hours with mill-direct pricing, material availability confirmation, and logistics coordination for container shipments to your designated port or facility.

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Ratings & Reviews

5.0

Very satisfied

Based on 8 reviews for verified purchases

Supplier service

5.0

On-time shipment

5.0

Supplier service

5.0

Robert Brown

United Kingdom

verified purchases

2025-09-13

Perfect Custom Color Match for Architectural Project
Specified 29 tonnes of 0.8mm PPGI in bespoke color for heritage building restoration. Supplier's spectrophotometer verification process ensured exact match to architect's sample. Paint film thickness measured 24 microns with uniform distribution. Blanking service provided complex profile cuts per our CAD drawings - dimensional accuracy within 1mm. Base steel grade showed 380 MPa yield strength, perfect for structural cladding. Delivery completed in 42 days including sample approval cycle. Exceptional technical support throughout.

John Smith

United States

verified purchases

2025-09-29

Acceptable Quality with Resolved Documentation Issue
Ordered 25 tonnes of 0.5mm PPGI coils for agricultural building project. Initial shipment arrived without complete ASTM A1008 mechanical property documentation. Supplier responded within 48 hours and provided corrected EN 10204 certificates showing yield strength at 245 MPa. Material quality itself was acceptable - paint adhesion tested satisfactory, coating thickness measured 22 microns. Once documentation corrected, no further issues. Would recommend ensuring certificate requirements clearly specified upfront.

William Taylor

Australia

verified purchases

2025-10-15

Reliable Coated Steel for Coastal Application
Purchased 30 tonnes of 0.55mm pre-painted galvanized steel for seaside storage facility. Material performed well in salt spray testing - 1050 hours exposure with minimal degradation. Zinc coating weight verified at 278 g/m² total. Surface finish quality was good with only minor handling marks on outer wraps. Lead time was 38 days for custom RAL 7016, reasonable for color matching process. Price point competitive compared to local Australian suppliers. Suitable for our coastal environment requirements.

Hans Mueller

Germany

verified purchases

2025-11-02

Premium PPGI for Appliance Manufacturing
Ordered 40 tonnes of 0.4mm PPGI coils for industrial equipment housings. Base material tolerance measured ±0.015mm, tighter than specified ±0.02mm. Paint system showed excellent forming characteristics - no cracking after 180° T-bend test. Color coordinates per ASTM D2244 matched our quality standards precisely. Mixed container with 3 different widths (800mm, 1000mm, 1200mm) processed efficiently. Chemical composition certificates showed carbon at 0.042%, suitable for our welding processes.

Ahmed Al-Hassan

UAE

verified purchases

2025-11-20

Outstanding Performance in Desert Climate
Third order of PPGI coils - 35 tonnes total for exterior wall panels in Dubai. Previous orders performed excellently under extreme UV and 50°C temperatures. This shipment: 0.6mm thickness, RAL 9002 finish, Z275 galvanization. Gloss measurements per ASTM D523 showed 65 units, ideal for our application. Cut-to-length service provided 3000mm sheets with edge straightness within 1.5mm per meter. Technical sales responded within 18 hours with logistics coordination. Trusted partner for Gulf region projects.

Carlos Silva

Brazil

verified purchases

2025-12-08

Good Value PPGI for Roofing Panels
Purchased 26 tonnes of 0.45mm pre-painted galvanized coils for residential roofing manufacturing. Material quality meets ASTM A755 standards with 20-micron paint thickness confirmed. Pencil hardness tested at 2H. Delivery took 22 days, slightly longer than quoted 20 days but acceptable. Pricing was competitive for South American market. Minor edge waviness on 2 coils but within tolerance. Would order again for standard projects.

James Wilson

United Kingdom

verified purchases

2025-12-23

Superior Quality Pre-painted Steel for Cladding
We specified 32 tonnes of 0.7mm thickness PPGI in custom Pantone 2728C for a commercial facade project. Spectrophotometer verification matched our sample perfectly. Salt spray testing exceeded 1200 hours with no rust bleeding. Slitting accuracy was within 2mm tolerance across 1250mm width. Compared quotes from 4 European suppliers - this offered best mill-direct pricing. EN 10204 Type 3.1 certificates documented yield strength at 320 MPa. Highly professional service.

Michael Chen

Singapore

verified purchases

2026-01-07

Excellent PPGI Coils for Warehouse Roofing
Ordered 28 tonnes of 0.5mm PPGI coils in RAL 5015 for our industrial warehouse project. Mill certificates confirmed Z275 zinc coating at 282 g/m². Paint film adhesion tested at 0 rating per ASTM D3359, perfect for our roll-forming operations. Color consistency across all 12 coils was outstanding. Delivered to Singapore port in 18 days. Technical team provided detailed T-bend test reports. This supplier understands construction-grade requirements.