PPGI Color Glazed Tile Pre-painted Galvanized Steel Roof Tile Factory Direct Supply

PPGI Color Glazed Tile is a building roofing material made from Pre-Painted Galvanized Steel, formed by roll pressing and cold bending. The product uses high-quality galvanized steel sheets such as SGCC, SGCH, G550, DX51D as the base material, with polyester (PE) coating on the surface, achieving the integration of substrate anti-corrosion and surface decoration functions through a continuous production process.

This product combines the architectural aesthetics of traditional glazed tiles with the engineering performance of modern steel materials. It not only retains the visual effect of classical architecture but also has the characteristics of light weight, high strength and strong durability of metal materials. Compared with traditional ceramic glazed tiles, PPGI color glazed tiles have significant technical advantages in installation efficiency, structural load, impact resistance and other aspects, and are widely applicable to roofing systems of various buildings.

Corrosion Resistance

The product substrate is treated by hot-dip galvanizing process, with galvanized layer weight covering the range of 30-275g/m², forming a dense zinc-iron alloy protective layer. The surface polyester coating further isolates the penetration of corrosive media, and the double protection system ensures the long-term use stability of the product in complex environments such as industrial atmosphere and coastal high salt spray.

Weather Resistance

The PE coating is cured at high temperature and has excellent UV resistance and color retention performance. The product can be used normally within the temperature range of -40°C to +80°C. Verified by artificial accelerated aging tests, the coating adhesion, gloss and color difference changes all meet the requirements of GB/T 1766 standard.

Light Weight and High Strength

The mechanical properties of the steel substrate ensure that the product has high bending strength and impact resistance. Meanwhile, the weight per unit area is only 1/5-1/8 of traditional ceramic tiles, effectively reducing building structural load and reducing material consumption and construction cost of roof support system.

Easy Installation

The product adopts standardized modulus design with uniform plate size and supporting special fasteners and sealing system. With large single coverage area and simple lap structure, the construction efficiency is more than 3 times higher than traditional tile materials, which can significantly shorten the construction period of roofing projects.

Rich Colors

Adopting RAL international standard color card system, it provides dozens of conventional color options such as bright red, sea blue, white gray, etc., and also supports customer customized color matching. The coating adopts continuous roll coating process with uniform color and luster, and batch color difference is controlled within the industry standard range.

Industrial Buildings

Roofing enclosure systems for various factories, workshops and warehouses, especially suitable for chemical, metallurgical, electric power and other industrial buildings with high anti-corrosion requirements.

Civil Buildings

Roofing of residential buildings, villas, new rural construction and other civil buildings, which can realize the organic combination of traditional architectural style and modern material performance.

Public Facilities

Long-span public building roofs such as farmers' markets, stadiums, exhibition centers, stations, etc. The lightweight feature reduces structural design difficulty.

Agricultural Facilities

Greenhouses, breeding plants, agricultural product storage facilities and other agricultural buildings, with good weather resistance to meet long-term outdoor use requirements.

Steel Structure Buildings

Light steel villas, modular buildings, temporary facilities and other steel structure systems, perfectly matching with steel frames to form a complete enclosure system.

Substrate Pretreatment

Select qualified hot-dip galvanized steel coils, after uncoiling and leveling, enter the cleaning process. Remove surface oil and oxide layer through alkaline cleaning, pickling and water washing to ensure coating adhesion.

Chemical Conversion Treatment

Form a dense phosphating film or chromating film on the clean steel surface to enhance the bonding force between the substrate and the coating, and improve the underlying anti-corrosion performance.

Coating Application

Adopt two-coat two-bake process:

Primer Coating: Roll coat special primer, cure in oven to form uniform primer layer

Top Coat: Roll coat polyester top coat, complete coating cross-linking curing through precisely controlled curing oven

Back Coat: The back of the steel plate is coated with protective paint simultaneously to prevent back corrosion during storage, transportation and use

Forming Processing

The coated color steel coil is fed into the cold bending forming unit according to customer required profile, and formed into glazed tile waveform through multi-pass rolling. The rolling speed and forming pressure are strictly controlled during forming to ensure no coating damage and accurate plate size.

Quality Inspection

Finished products undergo multiple quality inspections including appearance inspection, dimensional measurement, coating thickness detection, adhesion test, bending test, etc. Qualified products are labeled, packaged and prepared for delivery.

Shandong PinJie Steel has established a comprehensive quality management system and passed ISO 9001:2015 international quality management system certification. The whole production process strictly implements the following control measures:

Raw Material Incoming Inspection: Each batch of steel substrate is accompanied by material certificate, and chemical composition analysis and mechanical property re-inspection are conducted after incoming

Process Quality Control: Quality control points are set in key processes to real-time monitor process parameters such as coating thickness, curing temperature, forming size, etc.

Finished Product Delivery Inspection: Conduct full performance testing according to GB/T 12754 standard and issue product quality certificate

Traceability System: Establish product production files to realize full-process quality traceability from raw materials to finished products

The products comply with many international standards such as Chinese GB, Japanese JIS, European Union EN, American ASTM, and can meet the technical requirements of different regional markets.

Q1: What is the service life of PPGI color glazed tiles?
A: Under normal use conditions, the service life of PE coated products is 10-15 years. The actual service life is affected by factors such as use environment, installation quality, maintenance conditions, etc. For coastal high salt spray areas or heavy industrial areas, it is recommended to choose products with higher galvanized layer and thicker coating.

Q2: What technical points should be paid attention to during product installation?
A: Special waterproof fasteners should be used during installation, and fixing points should be set at the wave crest position; lap length is recommended to be no less than 150mm, and should be increased to 200mm when the slope is less than 15°; walking directly on the board surface is strictly prohibited, and special springboards should be used; cutting operations should use electric saws to avoid high temperature damage to the coating.

Q3: Which scenarios are products of different thicknesses suitable for?
A: 0.12-0.3mm is suitable for temporary buildings and simple warehouses; 0.3-0.5mm is suitable for ordinary factories and civil buildings; 0.5-0.8mm is suitable for large-span industrial factories and public buildings; above 0.8mm is suitable for buildings with special load requirements or high wind and snow areas.

Q4: How to choose the appropriate galvanized layer weight?
A: 60-90g/m² is recommended for general environment; 120-180g/m² is recommended for industrial areas and humid areas; 180-275g/m² is recommended for coastal areas. The heavier the galvanized layer, the better the anti-corrosion performance and the longer the product life.

Q5: How to repair scratches on PPGI color glazed tiles?
A: Minor scratches can be repaired by brushing with the same color special repair paint; when the scratch is deep enough to expose the substrate, rust removal treatment should be carried out first, then anti-rust primer should be applied, and finally top coat should be applied. For large-area damage, it is recommended to replace the damaged plate.