Coil Coated Aluminium

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.

Painted Aluminium Coil
Painted aluminium coil is a color coating treatment on aluminum coil. Commonly
fluorocarbon color coated aluminum and polyester color coated aluminum are
widely used in aluminum composite panels, aluminum veneer, aluminum honeycomb
panels and so on. Aluminum ceilings, roof surfaces, leftovers, cans and
electronic products. Its performance is very stable and not easy to corrode.
After special treatment, the surface can reach 30 years of quality assurance.
The weight per unit volume is the lightest among metal materials.
painted aluminium coil is treated with various colorful paint coatings on the
surface of aluminum coils after washing, chromium penetration, roller coating,
baking and other processes.
Coatings applied to Painted aluminium coil and sheets serve a number of
purposes, including:
Protecting the aluminum from corrosion and other types of damage
Improving the appearance of the aluminum by providing a uniform, smooth finish
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 painted
aluminium coil, including:

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

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.

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.

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, painted aluminium coil 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 Painted Aluminium Coil: 
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 painted aluminium coil 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.

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