What is PVDF Color Coated Aluminum Coil
Color coated aluminum coils include two common types: fluorocarbon color coated aluminum (PVDF) and polyester coated aluminum coils (PE). PVDF (fluorocarbon) coating utilizes ester solvent, pigment, and fluorocarbon resin as raw materials. The coating undergoes multiple high-temperature baking processes to form a solid, dry film that exhibits exceptional resistance to temperature changes. There are two types of PVDF coating: conventional PVDF coating and nano PVDF coating. The conventional PVDF coating uses KYNAR500 PVDF, which provides excellent resistance to acids and alkalis after three coatings and baking. It maintains its color for 15 years, even in harsh weather conditions, making it suitable for external wall cladding. On the other hand, nano PVDF coating is a transparent coating that contains nano components, offering protection against contaminants. Additionally, its self-cleaning effect allows dirt and pollutants to be easily washed away by rain or water.
The increasing popularity of PVDF color coated aluminum coil has made it a highly desirable material in today’s market. Environmental-friendly nature of PVDF color coated aluminum coil is well-suited to the growing emphasis on environmental issues. These coils demonstrate fantastic resistance to corrosion caused by saltwater, alkalis, and acid rain. They do not corrode, release harmful toxins or gases, and they do not cause any harm to structural elements like keels. What’s more, the fixings on these coils are rust-resistant and has flame retardant characteristics.
PVDF Color Coated Aluminum Coil Parameters
Material | 1050、1060、1100、3003、3004、3105、5005、5052 |
Coating | fluorocarbon coating |
Thickness | 0.25mm-4.00mm |
Width | ＜1800mm |
Coating thickness | PVDF ≥ 25micron |
Color | CBCC, RAL and Pantone color cards or color matching according to customer samples |
Implementation standard | YS/T431-2009 |
Color standard | E < 2 or not obvious by visual inspection |
Brinell hardness | > 2HB |
Coating glue | Not less than first-level impact: no cracks (50kg/cm, ASTMD-2794:1993) |
Bending strength | >100 times |
Boiling point | no any distortion and color change (in the 99 more or less 1 degree water, then cooling 2 hours) |
Corrosivity | surface deep in the 5% muriatic acid and 5% NaCL, interior deepin the 2% muriatic acid and 2% NaCL, after 48 hours, no change |
Fluorocarbon Spraying Process
Fluorocarbon spraying process adopts multi-layer spraying to give full play to the advantages of durability and weathering resistance of Kynar500 metallic paint, from the pre-surface treatment of aluminum to the various spraying processes need to be strictly controlled for quality, and the final product must meet the American Architectural and Manufacturing Association AAMA-605.02.90 standard.
Fluorocarbon spraying process is:
Pre-treatment process: Degreasing and decontamination of aluminum → water washing → alkali washing (degreasing) → water washing → acid washing → water washing → chroming → water washing → pure water washing
Spraying process: spraying primer → top coat → overcoat paint → baking (180-250 ℃) → quality inspection
Multi-layer spraying process: Multi-layer spraying process with three times spraying (referred to as three spraying), spraying primer, top coat and overcoat paint and secondary spraying (primer, top coat).
PVDF Coating Features
Excellent anti-corrosion properties: Thanks to excellent chemical inertia, film resistance to acids, alkalis, salts and other chemical substances and a variety of chemical solvents, to provide a protective barrier for the substrate; the film tough – high surface hardness, impact resistance, resistance to flexing, good wear resistance, showing excellent physical and mechanical properties.
Maintenance-free, self-cleaning: Fluorocarbon coating has a very low surface energy, surface dust can be self-cleaning through the rain, excellent hydrophobicity and oil repellent, very small coefficient of friction, will not stick to the dust and dirt, good antifouling.
Strong adhesion: In copper, stainless steel and other metals, polyester, polyurethane, vinyl chloride and other plastics, cement, composite materials and other surfaces have its excellent adhesion, basically showing that it is appropriate to attach to any material characteristics. High decorative – in the 60 degree gloss meter, can reach more than 80% of high gloss.
Ultra-long weatherability: The coating contains a large number of F – C bonds, which determines its super stability, does not chalk, does not fade, the service life of up to 20 years, with more excellent performance than any other class of coatings. Excellent workability – two-component packaging, long storage period, convenient construction.
PVDF Color Coated Aluminum Coil Applications
The PVDF Color Coated Aluminum Coil can be widely used in the decoration and protection of bridges, tankers, roofs, walls, railings, plastic building materials, trains, airplanes, ships, automobiles, road signs, highway guardrails, and large-scale steel structures.
Why Choose Yongsheng PVDF Color Coated Aluminum Coil
Henan Yongsheng Aluminum strictly controls the quality of PVDF color coated aluminum coil to ensure the uniformity of the spraying layer. Below are some advantages of Yongsheng PVDF color coated aluminum coils
Durability: The durability of Pvdf coated aluminum coil is exceptional, allowing it to withstand even the most demanding environmental conditions. It can effectively endure UV radiation, high temperatures, and exposure to harsh chemicals, ensuring long-lasting performance.
Chemical Resistance: Pvdf coatings demonstrate remarkable resistance to a wide range of chemicals, including acids, alkalis, and organic solvents. This property makes them highly suitable for various industrial and commercial applications where exposure to chemicals is common.
Weather Resistance: Pvdf coated aluminum coil exhibits excellent weather resistance, providing reliable protection against the damaging effects of sunlight, moisture, and extreme weather conditions. It maintains its color and appearance over an extended period, ensuring a visually appealing and durable surface.
Easy Maintenance: Maintaining Pvdf coated aluminum coil is effortless due to its smooth surface, which prevents the accumulation of dirt and debris. This feature makes it easy to clean and maintain the aesthetic appeal of the coated surface with minimal effort.
Versatility: Pvdf coated aluminum coil is incredibly versatile and finds application in a wide range of uses. Whether it’s for building facades, roofing, interior decoration, signage, or other applications, it offers flexibility and adaptability to meet diverse project requirements.
Wide Range of Colors: Pvdf coated aluminum coil offers a diverse selection of colors, encompassing both metallic and non-metallic options. This wide color range allows for customization, enabling the coil to be tailored to meet specific aesthetic preferences.
Excellent Dimensional Stability: PVDF coatings exhibit commendable dimensional stability, meaning they undergo minimal expansion or contraction in response to temperature and humidity variations. This characteristic ensures that the coated metal retains its original shape and size over extended periods.
Environmentally Friendly: PVDF coatings are an environmentally conscious choice as they are crafted from fluoropolymers that can be recycled and reused. This sustainable feature promotes resource conservation and reduces waste generation.
Summary
PVDF color coated aluminum coil provides a winning combination of aesthetics, durability, and versatility. With its vibrant color range, fantastic weather resistance, low maintenance needs, and broad applications, it has become a preferred choice for architects, designers, and builders. Whether it’s enhancing the exterior of a commercial building or adding a touch of elegance to an interior space, PVDF color coated aluminum coil provides a durable and visually appealing solution that stands the test of time.
FAQ
What is the difference between PE and PVDF coating?
PE (Polyester) coating is a cost-effective option with moderate durability and color retention, suitable for interior applications or short-term outdoor use. PVDF (Fluorocarbon) coating offers superior durability, color retention, and chemical resistance, making it ideal for long-term outdoor applications, but it is generally more expensive.
Is PVDF coating expensive?
Yes, PVDF (Fluorocarbon) coating is generally more expensive compared to other coating options such as PE (Polyester). The higher cost of PVDF coating is due to its superior durability, color retention, and chemical resistance properties.
