PET Laminated Steel Sheet

PET-laminated steel sheets are created by bonding a film to a metal substrate through a lamination process. These films can be decorative (such as high-gloss or iridescent films), realistic (such as wood-grain or marble films), or functional (such as weather-resistant outdoor films or fingerprint-resistant films). As a result, laminated steel sheets offer enhanced decorative appeal, improved wear resistance, and a high degree of customization.

This metal sheet product combines the excellent strength and processability of metal materials with the outstanding decorative properties, corrosion resistance, weather resistance, and stain resistance of polymer films. It is widely used in the home appliance, construction, decoration, and packaging industries.

Specifications and Parameters

Product Name	PET Laminated Steel Sheet
Substrate	Cold-rolled steel sheet, hot-dip galvanized steel sheet, electro-galvanized steel sheet, stainless steel, aluminized zinc steel sheet, aluminum sheet
Substrate Thickness	Steel sheet: 0.3-1.5mm, Aluminum sheet: 0.3-2.3mm
Total Thickness	Base material thickness: +0.05-0.18mm
Roll Available	Width: <1500mm, Length: <5000mm
Single Roll Weight	Size: <5.5 Tons
Surface Finish	Gloss, semi-matte, full matte finishes; supports various 3D textures including wood grain, stone grain, fabric grain, and pearlescent finishes
Color	RAL full color range or custom orders available
MOQ	25 Tons
Certification	ISO, CE, SGS

Key Advantages

Outstanding Decorative Properties

PET-laminated steel sheets feature a decorative PET film laminated onto the surface of the metal sheet. They offer vibrant gloss and a rich color palette, capable of producing a variety of surface effects ranging from matte to high-gloss, with high color fidelity and no color deviation.

High Functionality

• Corrosion Resistance: The laminate layer effectively blocks erosion caused by moisture, acids, alkalis, and chemical agents. Testing has shown that the product can withstand immersion in highly corrosive media—such as 98% sulfuric acid, 65% nitric acid, and 37% hydrochloric acid—for over 168 hours without developing surface defects such as cracks, loss of gloss, corrosion, or blistering.
• Weather Resistance: The product offers superior UV resistance and can pass accelerated weathering tests using xenon lamps for over 12,000 hours. It maintains stable performance across a wide temperature range from -20°C to 60°C.
• Scratch Resistance: The surface pencil hardness reaches 3H or higher, making it resistant to scratches from sharp objects during daily use.
• Self-Cleaning Properties: The smooth, anti-static surface allows oil stains and water marks to be wiped away with a single swipe, eliminating the need for frequent cleaning.

Excellent Formability

PET film bonds tightly to the metal substrate, making it resistant to cracking, peeling, or wrinkling during complex processing operations such as stamping, bending, and stretching.

Environmental Protection

The production of PET-laminated steel sheets uses solvent-free adhesives and eco-friendly laminating materials, ensuring no release of harmful substances such as formaldehyde or heavy metals. Compared to traditional spray-coating processes, the lamination technology significantly reduces VOC (volatile organic compound) emissions.

Fire Resistance and Safety

PET-laminated steel sheets meet Class A fire resistance standards and feature flame-retardant and self-extinguishing properties. The products are waterproof and moisture-resistant, preventing coating blistering or rusting even in humid environments.

Typical Applications

Home Appliances

PET-coated steel sheets are widely used in the home appliance industry for products such as refrigerator door panels and side panels, washing machine housings and front panels, air conditioner panels, water heater panels, disinfection cabinet panels, and freezer housings.

Architectural and Decorative Applications

For interior and exterior decoration, PET-coated steel sheets can be used for building exterior walls, interior partitions, suspended ceilings, and wall cladding. They are particularly suitable for locations with high requirements for weather resistance and corrosion resistance, such as airports, railway stations, and large public buildings.

Packaging Sector

In the field of metal packaging containers, PET-coated steel sheets can replace traditional tin-plated and chrome-plated steel in the printing process, and are used for food cans, chemical packaging, and other applications.

It can also be used in transportation applications such as ship interiors, train car interiors, and automotive interiors.

PET-Coated Steel Sheets vs. Pre-Coated Steel Sheets (PCM)

Comparison Item	PET-coated steel sheet	Pre-Coated Steel Sheets (PCM)
Surface Protective Layer	High-polymer film, thick and uniform	Paint coatings are typically thin
Decorative Effect	Multiple textures including wood grain, stone grain, fabric grain, pearlescent, and brushed metal	They are mainly solid colors with limited pattern options
Surface Texture	Three-dimensional texture, high color fidelity	Flat surface coatings offer relatively simple textures
Scratch Resistance	Pencil hardness of 3H or higher, strong scratch resistance	Thin coatings are prone to scratches
Corrosion Resistance	Complete high-polymer film coating, dense protection	Coatings may corrode due to pinholes or scratches
Lifespan	Strong aging resistance, longer lifespan	Prone to aging and yellowing under long-term temperature and humidity changes
Cost	Relatively high	Relatively low

Wanzhi Steel: A Professional Manufacturer of Laminated Steel Sheets

Wanzhi Steel specializes in the research, development, and manufacturing of laminated metal sheets. With proprietary lamination and composite processing technology, the company applies high-performance polymer films to the surfaces of metal sheets such as hot-dip galvanized steel sheets, cold-rolled steel sheets, and aluminum sheets. The products combine the strength of metal with the functionality of the film, ensuring stable performance over the long term.

Core Products

• PET-Laminated Steel Sheets: Laminated with PET film, these sheets offer a variety of decorative finishes—including high-gloss, matte, pearlescent, wood grain, and marble patterns. They are scratch-resistant, chemical-resistant, and UV-resistant, making them ideal for applications requiring high surface durability and aesthetic appeal.
• PVC-Laminated Steel Sheets: Featuring a PVC film laminate, these sheets offer excellent flexibility and balance cost-effectiveness with practicality, making them suitable for outdoor decoration and building envelope applications.

Different applications have varying requirements regarding substrate thickness, film type, and weather resistance ratings. Please let us know your specific application, and we will match you with the most suitable product solution.