Prepainted GL Steel Coil Quotes - Galvanized Steel Coils for Construction & Manufacturing

Tianjin TISCO International Trade Co., Ltd.

Verified Custom manufacturer 5yrs

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Technical Specifications of Prepainted Galvanized Steel Coil

Property	Parameter	Description
Product Name	Prepainted Galvanized Steel Coil (PPGI/PPGL)	Color-coated steel with zinc or zinc-aluminum coating
Base Material	Hot-dip galvanized steel (GI) / Galvalume steel (GL)	Zinc coating (PPGI) or 55% Al-Zn coating (PPGL)
Standard Compliance	ASTM A755, EN 10169, JIS G3312, GB/T 12754	Meets major international standards
Coating Type	Polyester (PE), Silicon Modified Polyester (SMP), Polyvinylidene Fluoride (PVDF)	Multiple coating options for different applications
Zinc Coating Weight	40-275 g/m² (both sides)	Corrosion protection layer thickness
Paint Thickness	Top: 15-25 μm, Back: 5-10 μm	Standard paint film thickness range
Thickness Range	0.13 - 1.5 mm	Available substrate thickness options
Width Range	600 - 1500 mm	Standard and custom widths available
Coil Weight	3 - 8 tons	Standard coil weight per unit
Tensile Strength	≥270 MPa (G550), ≥550 MPa	Minimum tensile strength per grade
Yield Strength	≥550 MPa (G550)	Structural strength specification
Color Options	RAL/Pantone color chart available	Customizable colors per customer requirements
Surface Finish	Glossy, Matte, Wrinkled, Embossed	Multiple surface texture options
Application	Roofing, Wall Cladding, Appliances, Furniture	Construction and manufacturing industries
Temperature Resistance	-40°C to +120°C (PE), -40°C to +260°C (PVDF)	Operating temperature range by coating type
Certification	ISO 9001, EN 10204 3.1, SGS, BV	Quality certifications provided
Packaging	Waterproof paper, steel strapping, wooden pallet	Standard export seaworthy packaging
MOQ	25 tons	Minimum order quantity per specification

Prepainted GL Steel Coil Quotes - Galvanized Steel Coils for Construction & Manufacturing

Prepainted GL steel coil quotes represent cost-effective solutions for manufacturers and construction firms seeking factory-direct pricing on color-coated galvanized steel. These premium-grade coils combine hot-dip galvanized substrate protection with durable polyester or PVDF topcoats, delivering exceptional corrosion resistance for architectural panels, roofing systems, and appliance manufacturing. Our mill-direct quotation system provides transparent pricing structures aligned with ASTM A755/A755M standards, enabling procurement teams to secure competitive rates for volumes ranging from 25-ton minimum orders to full container shipments.

What is Prepainted GL Steel Coil?

Prepainted GL steel coil refers to continuous hot-dip galvanized steel substrate that undergoes chemical pretreatment followed by roller-coating application of primer and topcoat layers in controlled factory environments. The galvanized base provides zinc coating weights between 60-275 g/m² per ASTM A653/A653M, while organic coatings ranging from 15-25 microns deliver UV resistance and color retention exceeding 10 years in standard atmospheric exposure per ASTM D4214 testing protocols.

Prepainted gl steel coil quotes supplier

Prepainted GL Steel Coil Technical Specifications

Standard specifications include base metal thickness from 0.14mm to 1.2mm with width capabilities of 600-1250mm. Coating systems comply with ASTM A755/A755M-17 requirements, featuring zinc layer mass of Z100-Z275 (both sides total) and paint film build measuring 18-22 microns topcoat plus 5-8 microns primer. Yield strength typically ranges 250-550 MPa depending on substrate grade selection, with coating adhesion meeting 0-1 rating per ASTM D3359 cross-hatch testing.

Why Choose Our Prepainted Galvanized Steel Coils

Our manufacturing facility operates continuous galvanizing lines certified to ISO 9001:2015 quality standards, processing 450,000 annual tons with real-time coating thickness monitoring via X-ray fluorescence systems. We maintain strategic inventory across RAL and Pantone color libraries, enabling 7-10 day lead times for standard specifications. Third-party inspection services from SGS or Bureau Veritas can be arranged, with full material traceability through mill test certificates documenting chemical composition per ASTM E415 optical emission spectrometry and mechanical properties per ASTM E8 tensile testing.

Frequently Asked Questions

What is the minimum order quantity for prepainted GL steel coil quotes?

Our standard MOQ stands at 25 metric tons per color and specification combination, equivalent to approximately one 20-foot container. For high-volume projects exceeding 200 tons quarterly, we offer preferential pricing tiers with reduced per-ton rates and flexible payment terms including 30-60 day credit arrangements for established accounts.

Do you provide material test certificates with prepainted steel coils?

Every shipment includes EN 10204 Type 3.1 mill certificates documenting base metal chemistry per ASTM E1019 carbon-sulfur analysis, zinc coating weight verified through ASTM A90 triple-spot testing, and paint system properties including pencil hardness (ASTM D3363), impact resistance (ASTM D2794), and flexibility per ASTM D4145 T-bend evaluation at 0T-2T radius.

Prepainted gl steel coil quotes China

What is the typical delivery time for prepainted galvanized coil orders?

Stock colors from our standard RAL palette ship within 7-10 business days FOB manufacturing facility. Custom color matching requires 18-22 days including drawdown preparation, color approval, and production scheduling. Rush orders can be accommodated with 15% expedite surcharge for 5-day processing on quantities under 50 tons.

Prepainted gl steel coil quotes manufacturer

Can you cut prepainted GL coils to custom widths?

Our precision slitting capabilities accommodate width tolerances of ±2mm across the 600-1250mm range, with edge quality meeting ASTM A1063 S1 standards for burr-free edges suitable for roll-forming operations. Minimum slit width measures 100mm, with coil ID options of 508mm or 610mm matched to customer decoiling equipment specifications.

Get a Competitive Quote for Prepainted GL Steel Coil

Request detailed quotations by submitting specifications including base metal grade, thickness, width, zinc coating designation, color system, and annual volume requirements. Our technical sales team responds within 4 business hours with itemized pricing covering material costs, coating surcharges, packaging options, and freight estimates to your destination port. Volume commitments exceeding 500 annual tons qualify for locked-in pricing agreements protecting against market fluctuations for 6-12 month contract periods.

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

Carlos Silva

Brazil

verified purchases

2025-09-10

Superior Technical Support for Custom Color Matching
Required custom color for 35-ton order, 0.48mm thickness, 1100mm width for architectural roofing system. Technical team provided three drawdown samples for approval, color matching process took 20 days total. Final product showed excellent color consistency with Delta E less than 1.0 across batches. ASTM D4214 weathering data provided for Brazilian climate conditions. Yield strength 320 MPa suitable for roll-forming operations. Bureau Veritas inspection confirmed all specifications. Third repeat order confirms reliability.

Ahmed Al-Hassan

UAE

verified purchases

2025-09-28

Acceptable Quality with Initial Documentation Delay
Ordered 25 tons of 0.55mm prepainted coil, Z120 coating, RAL 5015 for Dubai project. Material quality met ASTM A755 requirements with proper adhesion and flexibility testing. Initial shipment lacked complete EN 10204 certificates but supplier provided within 48 hours after request. Coating thickness measured 20 microns, within specification range. Color match was satisfactory. Delivery time 10 days was good. Minor issue resolved professionally, material performed well in installation.

Wei Chen

Singapore

verified purchases

2025-10-15

Perfect for High-Volume Distribution Requirements
Established annual contract for 600 tons prepainted GL coils across multiple specifications. Factory operates ISO 9001:2015 certified lines with consistent quality control. Stock colors from RAL palette ship within 7 days as promised. X-ray fluorescence monitoring ensures coating thickness uniformity. Flexible payment terms with 45-day credit arranged after third order. Technical team assists our customers with specification selection. Volume pricing tier reduced per-ton cost by 8% compared to spot orders.

Chris Martin

Canada

verified purchases

2025-11-02

Reliable Quality for Appliance Manufacturing
Sourced 50 tons prepainted coil, 0.4mm thickness, 914mm width, white RAL 9010 for appliance panel production. Base metal chemistry per ASTM E1019 showed carbon at 0.042%, suitable for our forming requirements. Impact resistance 50 inch-pounds per ASTM D2794. Coil ID 508mm fit our decoiling equipment perfectly. Lead time was 21 days, slightly longer than quoted 18 days but acceptable. Pricing locked for 6-month contract helped budget planning.

William Taylor

Australia

verified purchases

2025-11-20

Premium Z275 Coating for Coastal Applications
Ordered 18 tons of heavy zinc coating prepainted GL steel, 0.7mm thickness, 1250mm width, Z275 grade with polyester topcoat for our Sydney harbor project. ASTM A90 triple-spot testing confirmed 275 g/m² zinc mass. Salt spray testing documentation showed 1500+ hours performance. Color retention guaranteed 10 years per supplier. Slitting tolerance held at ±1.5mm across full width. Material arrived Melbourne port in 14 days, well-packaged with moisture protection.

Hans Mueller

Germany

verified purchases

2025-12-08

Good Value Polyester Coated Coils for Industrial Use
Purchased 32 tons of 0.6mm prepainted coil, 1000mm width, RAL 7035 polyester coating for warehouse cladding. Price was competitive compared to European suppliers, approximately 12% lower. Material quality acceptable with 18-micron topcoat verified. Minor edge waviness on two coils but within ASTM A1063 tolerance. T-bend test at 1T passed without cracking. Delivery took 11 days FOB Qingdao. Would order again for cost-sensitive projects.

Michael Johnson

United States

verified purchases

2025-12-23

Outstanding Service and Fast Delivery for Roofing Project
Requested quote for 45 tons prepainted galvanized coil, 0.45mm gauge, custom color match to Pantone 287C. Sales team responded within 3 hours with detailed pricing breakdown including coating surcharge and freight to Houston. Production completed in 19 days with color drawdown approval process. EN 10204 3.1 certificates included zinc weight at Z150, yield strength 280 MPa. SGS inspection arranged at factory. This is our 4th order this year.

James Wilson

United Kingdom

verified purchases

2026-01-07

Excellent PVDF Coating Quality for Architectural Panels
Ordered 28 tons of prepainted GL coil, 0.5mm thickness, 1220mm width, RAL 9002 with PVDF topcoat for our facade project. Mill certificates confirmed Z180 zinc coating and 22-micron PVDF layer meeting ASTM A755 standards. Cross-hatch adhesion tested at 0 rating, pencil hardness 2H verified. Color uniformity was outstanding across all coils. Delivered in 9 days to Southampton port. Technical support helped us select proper coating system for coastal environment exposure.