PPGI Roofing Sheet Manufacturer - Mill Direct Factory

Zhonghe Building Materials Co., Ltd.

Verified Custom manufacturer · 3 yrs ·

China

Customizable Rock-bottom price

$650 1-49 ton Base price

$621 50-99 ton 4.5% off

$607 ≥100 ton 6.6% off

Price validity: subject to market conditions

Supplier's customization ability

Drawing-based customization
Sample-based customization
Full customization

Quantity

Minimum order quantity: 1 ton

Shipping total: To be negotiated

Subtotal of goods US$ 650.00

Start order request

Payment and delivery

Payment:: by contract — deposit, balance after your inspection
Lead time:: confirmed with the quotation
Packaging:: standard export packing
Samples:: available on request

Product details

Technical Specifications of PPGI Roofing Sheet Manufacturer

Property	Parameter	Description
Product Name	PPGI Roofing Sheet	Pre-Painted Galvanized Iron / Steel Roofing Sheet, color-coated corrugated or trapezoidal profile
Material Grade	DX51D+Z / SGCC / S280GD+Z	International equivalents: DX51D (EN 10346), SGCC (JIS G3302), CS Type B (ASTM A653); base metal hot-dip galvanized steel
Standard Compliance	ASTM A755 / EN 10169 / JIS G3312 / GB/T 12754	Covers organic-coated flat-rolled steel for roofing and cladding applications
Chemical Composition	C ≤0.12%, Mn ≤0.60%, P ≤0.045%, S ≤0.045%, Si ≤0.50%	Base steel chemistry per EN 10346 / ASTM A653; zinc coating: Zn ≥99.7% purity
Tensile Strength	270–500 MPa	Typical range per EN 10346 / ASTM A653; DX51D min. 270 MPa, S280GD min. 360 MPa
Yield Strength	140–420 MPa	DX51D: 140–300 MPa; S280GD: 280–420 MPa per EN 10346
Elongation	≥16–22%	A80 elongation per EN 10346; DX51D ≥22%, S280GD ≥16%
Base Metal Thickness	0.12–1.50 mm	Common roofing thickness: 0.25–0.80 mm; tolerance per EN 10143 / ASTM A924
Sheet Width	600–1,250 mm	Effective coverage width after profiling: 750–1,000 mm; custom widths available
Sheet Length	1,000–12,000 mm	Standard lengths 1,800–6,000 mm; custom cut-to-length available per order
Zinc Coating Weight	Z60–Z275 g/m²	Both sides combined per EN 10346 / ASTM A653; Z120 (AZ50) standard for roofing
Paint Coating	Top coat: 15–25 µm; Primer: 5–7 µm; Back coat: 7–10 µm	Polyester (PE), High Durability Polyester (HDP), PVDF, SMP; RAL / custom colors available
Surface Finish	Smooth / Embossed / Matte / Glossy	Gloss level 10–85 GU (60° angle); pencil hardness ≥2H; T-bend ≤2T per ASTM D4145
Application	Residential & commercial roofing, wall cladding, industrial buildings, warehouses	Suitable for corrugated, IBR, trapezoidal, and standing seam roof profiles
Certification	ISO 9001, SGS, BV, CE, RoHS	Factory audit and third-party inspection available; mill test certificate (MTC) provided
Packaging	Export seaworthy packaging; steel strapping, waterproof paper, wooden pallet	Bundle weight: 3–5 MT; moisture-proof inner wrapping; corner protectors included
MOQ	25 MT per order	Mixed specifications accepted; FCL (20'/40') shipment; lead time 15–25 days after deposit

PPGI Roofing Sheet Manufacturer - Mill Direct Factory

As a dedicated PPGI roofing sheet manufacturer, we supply mill-direct pre-painted galvanized iron roofing sheets to construction contractors, steel distributors, and building developers across global markets. PPGI (Pre-Painted Galvanized Iron) roofing sheets find extensive application in residential housing, commercial warehouses, industrial facilities, and agricultural structures where long-term weather resistance and aesthetic appeal are equally critical. Our integrated production line — from cold-rolled substrate to finished coated coil — allows us to maintain strict quality control at every stage while offering mill-direct rates that eliminate unnecessary intermediary costs. With an annual output capacity exceeding 200,000 metric tons and compliance with ASTM A755, JIS G3312, and EN 10169 international standards, we serve clients in Southeast Asia, the Middle East, Africa, Europe, and South America. Whether you need standard corrugated profiles or custom-cut flat sheets, our engineering team provides tailored solutions backed by consistent product performance and reliable lead times.

What is PPGI Roofing Sheet?

A PPGI roofing sheet is a structural cladding product manufactured by applying one or more layers of organic coating — typically polyester, PVDF, or SMP resin — onto a hot-dip galvanized steel substrate. The zinc coating weight typically ranges from Z60 to Z275 g/m², providing a robust anti-corrosion barrier, while the organic topcoat delivers UV resistance, color retention, and surface hardness measured at a minimum pencil hardness of 2H. The finished product combines structural rigidity with decorative versatility, making it a preferred roofing solution in both temperate and high-humidity coastal environments.

PPGI roofing sheet supplier

PPGI Roofing Sheet Manufacturing Process

Our PPGI roofing sheet manufacturing process begins with premium cold-rolled steel coils that undergo continuous hot-dip galvanizing in a zinc bath maintained at approximately 450°C. The galvanized substrate is then cleaned, chemically pre-treated with a chromate-free passivation layer, and fed through a precision roll-coating machine where primer and topcoat are applied sequentially. Each coating layer is cured in a thermal oven at 220–250°C peak metal temperature (PMT). Final inspection includes adhesion cross-cut testing per ISO 2409, salt spray evaluation exceeding 500 hours per ASTM B117, and color consistency verification using CIE Lab spectrophotometry.

PPGI Roofing Sheet Technical Specifications

Our standard PPGI roofing sheets are produced to the following verified parameters:

PPGI roofing sheet factory

Base Steel Thickness: 0.12 mm – 1.50 mm (±0.02 mm tolerance)
Coil Width: 600 mm – 1,500 mm (custom slit widths available)
Zinc Coating Weight: Z60 – Z275 g/m² per ASTM A653
Topcoat Thickness: 15–25 μm polyester or 25–35 μm PVDF
Yield Strength: 240–550 MPa depending on steel grade (DX51D / S280GD)
Tensile Strength: 270–560 MPa minimum per EN 10346
Color Options: RAL / Pantone custom matching available
Surface Finish: Smooth, embossed, matte, or high-gloss
Coil Weight: 3–10 MT per coil; cut-to-length sheets also available

All coils are wrapped in moisture-proof kraft paper and steel-strapped for safe ocean freight, with MTC (Mill Test Certificates) provided for every shipment.

Get a Competitive Quote for PPGI Roofing Sheet

Ready to source premium-grade PPGI roofing sheets at mill-direct rates? Our sales engineers are prepared to review your project specifications, recommend the optimal coating system, and deliver a detailed quotation — including FOB, CFR, or CIF pricing — within 24 hours of your inquiry. Bulk order discounts and flexible MOQ arrangements are available for long-term partnership contracts.

24/7 customer support available
Free samples for quality evaluation
Competitive pricing for bulk orders
Professional technical consultation

Contact us today to get your free quote within 24 hours!

PPGI roofing sheet exporter

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Liam O'Sullivan

Australia

2025-02-01

Initial color mismatch resolved — quality otherwise acceptable

Ordered 55 MT of 0.42 mm PPGI roofing coils in Z160 coating with 20 μm polyester topcoat in a custom Pantone 7690C blue for a Melbourne industrial shed project. On arrival, CIE Lab spectrophotometry readings showed a ΔE of 2.8 versus the approved sample — noticeable under direct sunlight. I raised the issue with the sales team, who arranged a replacement production run of the affected 8 coils within 18 days at no additional cost, and the replacement batch measured ΔE 0.9. The resolution process was handled professionally. Zinc coating weight and mechanical properties were correct throughout. Will consider reordering once confidence in color QC is established.

Charlotte Davies

United Kingdom

2025-02-23

Competitive mill pricing justifies the longer lead time

We sourced 45 MT of 0.55 mm PPGI sheets with Z150 zinc coating and embossed surface finish for a mixed-use development in Manchester. Product quality met EN 10346 tensile strength requirements, and the embossed finish looked excellent on the completed building. The mill-direct cost advantage over local stockholders was approximately 9% on this volume. Lead time ran 35 days versus the quoted 30 days, which caused minor scheduling friction — hence four stars rather than five. Communication during the delay was proactive, and the team offered partial shipment to mitigate the impact. Reasonable overall experience.

Marcus Greene

United States

2025-03-17

Good value for DX51D grade — minor slit width variance noted

Purchased 75 MT of DX51D grade PPGI coils, 0.30 mm thickness, Z100 coating, in 900 mm slit width for light commercial roofing in Florida. Overall quality-to-price ratio is strong compared to domestic US suppliers — mill-direct rates represent genuine savings on larger volumes. Coating adhesion and color uniformity in RAL 9002 were consistent. Docked one star because two coils measured 897 mm versus the specified 900 mm, slightly outside the stated tolerance. Customer service acknowledged the variance promptly and offered credit adjustment. Would order again with tighter QC confirmation upfront.

Know your supplier

Zhonghe Building Materials Co., Ltd.

3 yrs on Sinoali.com

Located in China

Company information More goods

FAQ

Q: What materials do you offer for roofing and wall cladding?

A:We supply color coated steel coils, corrugated roofing sheets, glazed tiles, PPGI, PPGL and related roof accessories.

Q: How long is the service life of your roofing sheets?

Q: Can you provide customized colors and patterns?

Q: What thicknesses are available for color steel coils and sheets?

Q: Can your color steel sheets be used outdoors?

Q: How about the packaging to avoid damage during shipment?

Product display

Zhonghe Building Materials Co., Ltd. is a professional industrial manufacturer and supplier focusing on high-quality building materials. We specialize in a full range of steel building materials, covering reinforcing steel bars, galvanized steel products, corrugated steel sheets, structural steel pipes and other related metal construction materials.

Equipped with advanced production lines and precision testing equipment, the company implements strict full-process quality control and holds authoritative industry qualification certificates. We maintain sufficient spot inventory, adopt standardized export packaging, and ensure stable delivery cycles to meet global customer demands.

Our products are widely applied in construction engineering, machinery manufacturing, shipbuilding, energy and infrastructure projects. Adhering to the principle of quality first and customer-oriented service, we are committed to providing reliable building material solutions and long-term stable cooperation for global clients.