3D Golden Oak Wooden Pattern Steel Coils/PPGI

Modern home appliance brands face two non-negotiable challenges: extending product lifespan in harsh household environments and creating distinctive designs to win market share. Traditional galvanized steel requires post-production painting, which adds 20-30% to manufacturing costs and extends lead times by 5-7 days. Generic PPGI sheets often suffer from coating peeling after stamping or premature corrosion in humid kitchens and laundry rooms.

PINJIE New Materials solves these industry-wide pain points with purpose-built color coated PPGI sheets for home appliances. As a leading Chinese manufacturer with 12+ years of specialized experience, we supply materials to 30+ global home appliance brands. Our products combine the strength of steel with durable, customizable coatings, eliminating extra surface treatment steps and delivering consistent performance across high-volume production lines.

Color coated PPGI (Pre-Painted Galvanized Iron) sheet is a composite material made by applying multiple layers of organic coatings to high-quality cold-rolled or hot-dip galvanized steel after rigorous surface pretreatment and high-temperature curing.

Our home appliance-grade PPGI sheets integrate the high strength and formability of steel with the corrosion resistance and decorative properties of advanced coatings. They can withstand complex processing techniques such as deep stamping, 180° bending, and laser cutting without coating damage. All our coatings use environmentally friendly formulations that comply with global environmental standards, ensuring no harm to human health or the environment during production and use.

We offer a wide range of surface finishes and color options to meet the diverse design needs of home appliance manufacturers. Our products provide a smooth, uniform surface that gives appliances a premium, modern appearance while delivering long-lasting protection.

1. Multi-Layer Corrosion Protection for Longer Appliance Lifespan

Refrigerators face constant condensation, washing machines are exposed to detergent residues, and ovens endure high temperatures and oil fumes. Ordinary PPGI sheets typically develop visible corrosion within 3-5 years, leading to costly returns and brand reputation damage.

Our home appliance-grade PPGI uses a 4-layer protective system: hot-dip galvanized base, chromate-free conversion layer, epoxy primer, and weather-resistant topcoat. This structure delivers 1000+ hours of neutral salt spray resistance (per ASTM B117 standard), extending appliance service life by 2-3 times. The coating achieves 5B-grade adhesion (per ASTM D3359), meaning no cracking or peeling even after 180° bending, deep stamping, or laser cutting. Your appliances will maintain a flawless appearance from the showroom to the end of their lifecycle.

2. Precision Manufacturing Reduces Production Waste

Inconsistent material quality is the top cause of downtime in high-volume appliance factories. Even minor variations in thickness or flatness can lead to misaligned parts, rejected components, and production line stoppages.

We produce all PPGI sheets on fully automated continuous coating lines imported from Germany with ±0.01mm thickness tolerance and ±1mm width tolerance. The sheet flatness is controlled to ≤2mm/m, ensuring uniform processing results across every batch. This precision reduces your scrap rate to below 1%, compared to the industry average of 5-8%. Our materials also exhibit excellent welding and secondary coating compatibility, simplifying assembly processes and shortening your overall production cycle.

3. Customizable Aesthetics for Brand Differentiation

Today's consumers view appliances as integral parts of home decor. Generic white or silver finishes no longer stand out in crowded retail spaces.

We offer 200+ standard colors (matching RAL and Pantone color cards) and 15+ texture options, including matte, semi-gloss, high-gloss, wood grain, stone texture, and brushed metal. Our custom color matching service achieves 98% accuracy, allowing you to create exclusive finishes that align with your brand identity. The scratch-resistant topcoat retains 90% of its original gloss after 10 years of indoor use, ensuring your products look new even after daily cleaning and wear.

4. Global Compliance for Seamless Market Access

Non-compliant materials can result in customs delays, product recalls, and lost market access. Global regulators continue to tighten environmental and safety standards for consumer goods.

All our PPGI coatings are lead-free, cadmium-free, and fully compliant with RoHS 2.0, REACH SVHC, and California Proposition 65. We hold ISO 9001:2015 quality management certification, CE safety certification, and third-party test reports from SGS and BV. We provide complete certification documentation with every order, helping you smoothly pass local product inspections and enter over 80 countries worldwide.

Our products have been adopted by a leading German refrigerator brand for their premium built-in series and a top 5 North American appliance manufacturer for their washing machine line, demonstrating consistent performance in global markets.

White Goods: Stain-Resistant Surfaces for Daily Use

Refrigerators and washing machines operate in high-humidity environments where condensation, detergent spills, and food stains are inevitable. Generic PPGI sheets develop yellowing stains within 2 years and require frequent deep cleaning, which erodes the coating over time.

Our home appliance-grade PPGI features a non-porous, anti-fouling topcoat that repels water, oil, and common household chemicals. Spills wipe away with a damp cloth without leaving residue, reducing cleaning time by 60% for end-users. This makes it the ideal material for:

Refrigerator outer shells, door panels, and inner liners

Washing machine drums, front panels, and control housings

Dishwasher door panels and side panels

Freezer compartments and ice maker housings

The material also resists scratches from daily handling and retains its original color for 10+ years, ensuring your appliances maintain a premium appearance throughout their service life.

Kitchen Appliances: High-Temperature and Oil-Resistant Performance

Microwaves, ovens, and range hoods face extreme conditions: temperatures up to 180°C, constant oil fume exposure, and frequent cleaning with harsh degreasers. Ordinary coatings will yellow, crack, or peel within 1-2 years under these conditions.

Our specialized kitchen-grade PPGI is formulated with heat-resistant resins that withstand continuous 120°C operation and short-term 180°C exposure without discoloration or degradation. The oil-repellent surface prevents grease buildup, making it easy to clean even after months of use. It is widely used for:

Microwave oven cavities and outer shells

Electric oven door panels and side panels

Range hood filters and outer casings

Toaster and air fryer housings

All coatings are food-safe and comply with FDA 21 CFR 175.300 food contact regulations, eliminating health risks for consumers.

Packaging Standards: Wrapped with waterproof and moisture-proof film + Reinforced with steel bands + Wooden pallets, suitable for long-distance sea and land transportation, preventing bumps and moisture exposure.

Shipping Ports: Qingdao Port and Tianjin Port in China. The shipping routes cover the entire world, with high logistics efficiency and controllable costs.

Delivery Cycle: 7-15 days for orders. Adjustments can be made flexibly according to the order quantity.

Minimum Order Quantity: Standard 5 tons. New customers can negotiate to lower the threshold for trial orders.

Authoritative qualification certification

The product has obtained multiple international certifications to ensure its compliance for global projects:

ISO 9001 Quality Management System Certification

CE European Safety Certification

Third-party testing report from SGS/BV

RoHS & REACH Environmental Compliance Certification

Compliant with multiple national material standards such as GB, ASTM, and EN

Customized production: Customize dimensions, coatings, finishes, textures according to drawings and samples, matching the exclusive requirements of the project.

Supply guarantee: Large-scale production line, ensuring stable supply for both small-batch trial orders and large-batch engineering orders.

Payment methods: Support various settlement methods such as T/T, immediate L/C, and cash, reducing the financial pressure on customers.

After-sales guarantee: Provide online technical support, prompt after-sales response to solve problems throughout the project cycle.

Q1: What coating type should I choose for my home appliance application?

A: We recommend different coatings based on your specific use case:

PE coating: Best for indoor appliances with moderate durability requirements (refrigerator interiors, small appliance housings)

HDP coating: Ideal for high-wear applications (washing machine drums, dishwasher panels)

SMP coating: Excellent color retention for exterior surfaces (air conditioner outdoor units)

PVDF coating: Maximum durability for harsh environments (coastal HVAC systems, outdoor kitchen appliances)

Our technical team can help you select the optimal coating based on your performance requirements and budget.

Q2: How long does custom color matching take?

A: Our standard custom color matching service takes 3-5 business days from receipt of your color sample or Pantone/RAL number. We provide a physical color sample for your approval before starting full production. For urgent orders, we can expedite the process to 24 hours.

Q3: Do you provide samples? How much do they cost?

A: Yes, we provide free A4-sized samples of our standard colors and coatings. Custom samples are available for a small fee, which will be credited toward your first order. The customer is responsible for shipping costs: approximately $35 to the US, $40 to Germany, and $25 to Australia via international express.

Q4: What is your minimum order quantity (MOQ)?

A: The MOQ for standard-sized products is 5 tons. For trial orders and custom products, we can accept orders as low as 1 ton to allow you to test our quality before placing a larger order.

Q5: What payment methods do you accept?

A: We accept a variety of payment methods to accommodate different customer needs:

T/T: 30% deposit, 70% balance before shipment

Irrevocable sight letter of credit (L/C)

D/P at sight (for established customers)

Alibaba Trade Assurance

Q6: Can you arrange door-to-door delivery?

A: Yes, we offer comprehensive door-to-door delivery services to most countries worldwide. Our logistics team will handle all shipping, customs clearance, and local delivery arrangements, so you don't have to worry about any logistics details.

Q7: How do you ensure consistent quality across large orders?

A: We implement a strict quality control process at every stage of production: raw material inspection before production, in-process testing every 30 minutes, 100% online surface inspection, and final batch inspection before shipment. We provide a complete quality report with every order, including test results for coating thickness, adhesion, corrosion resistance, and color uniformity.

Q8: What is your warranty policy?

A: We offer a 10-year limited warranty against coating defects such as peeling, cracking, and abnormal corrosion. The warranty covers the cost of replacement materials and shipping for any defective products. Full warranty terms and conditions are available upon request.

Q9: Are your PPGI sheets suitable for refrigerator inner liners that come into direct contact with food?

A: Yes, our food-grade PPGI sheets have passed the FDA 21 CFR 175.300 certification, ensuring they are safe for direct contact with food. They also have excellent resistance to food acids and stains, making them ideal for refrigerator interiors.

Q10: What coating thickness is recommended for different home appliance components?

A: We recommend:

20-25μm total coating thickness for indoor appliance shells

30-35μm for washing machine drums and dishwasher panels

40-50μm for outdoor HVAC units and coastal applications

Our technical team can provide customized thickness recommendations based on your specific product design.

Q11: How can I get a detailed quotation for my order?

A: You can request a quotation by filling out the form on our website, sending an email to sales@sino-galvanized.com, or contacting our sales team via WhatsApp. Please provide the required thickness, width, coating type, color, and quantity, and we will send you a detailed quotation within 24 hours.