Aluminium Coil Coating

Aluminum coil coating is a kind of polyester coating coil. It has the characteristics of high weather resistance, which can effectively improve the anti-ultraviolet ability and prolong the service life of outdoor use.

Introduction of Aluminium Coil Coating

Aluminium Coil Coating is an industrial process used to produce pre-coated aluminum coils. Different types of coatings are available: anodized, painted, liquid or powder coating. This method is used to promote the use of aluminum in most environmental conditions. For this reason, the application of coil coating involves two major industries: architecture and interior design.

Aluminum coil coating is the process of applying a protective layer or coating to aluminum coils or sheets. The coating is typically applied using a continuous coil coating process, in which the aluminum is passed through a series of coating stations on a continuous production line. The coating material is applied to the aluminum using a variety of techniques, such as roll coating, spray coating, or electrostatic coating.

Coatings applied to aluminum coils and sheets serve a number of purposes, including:

1. Protecting the aluminum from corrosion and other types of damage
2. Improving the appearance of the aluminum by providing a uniform, smooth finish
3. Enhancing the performance of the aluminum in certain applications, such as in the construction or automotive industries

There are several different types of coatings that can be applied to aluminum coils, including:

1. PVDF (polyvinylidene fluoride) coatings: These coatings provide excellent weathering resistance and are commonly used in architectural and construction applications.

2. Powder coatings: These coatings are made from dry, finely ground resin and are applied to the aluminum using heat. They are known for their excellent corrosion resistance and durability.

3. Anodized coatings: These coatings are formed by an electrolytic process that creates a thin, oxide layer on the surface of the aluminum. Anodized coatings are known for their excellent corrosion resistance and durability.

4. Organic coatings: These coatings are made from a variety of organic materials, such as paints, enamels, or lacquers, and are applied to the aluminum using a variety of techniques, such as roll coating or spray coating. Organic coatings are commonly used for decorative or aesthetic purposes.

In summary, aluminum coil coating is the process of applying a protective layer or coating to aluminum coils or sheets to protect the aluminum and improve its performance in certain applications. There are several different types of coatings that can be applied to aluminum, including PVDF, powder, anodized, and organic coatings.

Advantages of Aluminium Coil Coating: 

1. Light texture, easier to form

2. Corrosion resistance Because its surface has a dense oxide film, it has strong adhesion, anti-oxidation, acid resistance, alkali resistance, corrosion resistance, corrosion resistance, and UV resistance.

3. Good temperature resistance, the melting point of aluminum is 660 degrees, and the general temperature does not reach its melting point

4. The board has extremely high strength and can be cut, slit, balanced, drilled, joined, fixed and compressed at the edges.

Applications

● Building facades

● Curtain wall and shading elements

● Roofing

● Roller blinds

● Composite walls and partitions

● Ceiling panels

● Laminate or sandwich panels

● Decorative panels

● Billboards

The Aluminium Coil Coating performance

PVDF & FEVE & HDPE coated aluminum coil performance Item Testing Standard Standard requirement PVDF FEVE HDPE 1 Color ECCA T3 Using range Matt and dark colors All colors All colors 2 Gloss ECCA T2 Max. gloss degree 35 85 90 Min. gloss degree 15 50 20 3 Coating Thickness ECCA T1 2 layers coating Min.23µm ≥25µm ≥25µm ≥25µm 3 layers coating Min. 30µm ≥34µm according to requirements according to requirements 4 Pencil Hardness ECCA T4 ≥HB HB H H 5 T-bend ASTM D4145 Aluminum thickness≥0.50mm 90 degrees no crack / 90 degrees no crack Aluminum thickness＜0.50mm 2T 2T 2T 6 Adhesion ASTM D3359 Grade 0 Grade 0 Grade 0 Grade 0 7 Impact Resistance ASTM D2794 ≥50kg.cm ≥50kg.cm ≥50kg.cm ≥50kg.cm 8 Boil Resistance GB/T17748 2 hours no change 4 hours no change 2 hours no change 2 hours no change 9 Solvent Resistance ASTM D2248 200 times no change 200 times no change 200 times no change 200 times no change 10 Acidity Resistance ASTM D1308 5%HCL 24h, no change 5%HCL 24h, no change no change 2%HCL 24h, no change 11 Alkalescence Resistance ASTM D1308 5%NaOH 24h,△E≤2.0 5%NaOH 24h,△E≤2.0 5%NaOH 24h, △E≤2.0 saturated Ca(OH)2 24 hours△E≤2.0 12 Nitric acid Resistance AAMA620 △E≤5.0 △E≤5.0 △E≤5.0， slight blister △E≤5.0， slight blister 13 Oil Resistance ASTM D1308 20＃Engine oil 24 hours no change 20＃Engine oil 24 hours no change 20＃Engine oil 24 hours no change no change 14 Salt Resistance ASTM B117 4000hours no less than grade 1 4000hours no less than grade 1 4000hours no less than grade 1 2000 hours corrosion edge≤2mm 15 Abrasion Resistance ASTM D968 ≥5L/µm ≥5L/µm Waiting for the third-party testing Waiting for the third-party testing 16 Dirt Resistance GB/T9780 ≤5% ＜5% Waiting for the third-party testing Waiting for the third-party testing 17 Color retention GB/T16259 4000hrs，△E≤4.0 4000hrs，△E≤4.0 2000 hours△E≤4.0 2000 hours△E≤4.0 18 Gloss weaken level 4000hours no less than grade 2 4000hours no less than grade 2 2000h, no less than grade 2 2000h, no less than grade 2 19 Chalk resistance 4000 hours no change 4000 hours no change（no less than grade 2） 2000hours, no less than grade 2 2000hours, no less than grade 2 20 Fluoride resin percentage     70% ≥95% none 21 Guarantee for exterior using GB/T16259   10-15 years in different colors 10-15 years in different colors 7-8 years in different colors

About manufacturer

As one of the most professional coated aluminum coil manufacturers and suppliers in China, with our experience and good management here, you will find the right coated aluminum coil with us, we are your reliable partner.

When you contact us, please provide your detailed requirements. That will help us give you a valid quotation.