With different coatings, the painted aluminum coil is widely used in bottle cap material, gutter, roof, electric appliances,etc. 5xxx and 6xxx aluminum sheets are widely used in shipbuilding and vehicles making. Aluminum 8011 are usually used in the from of aluminum foil.

1. What Are Popular Uses of Aluminum Sheet
and Aluminum Coil
Abstract: With different coatings, the painted aluminum coil is widely used in bottle cap
material, gutter, roof, electric appliances,etc. 5xxx and 6xxx aluminum sheets are widely
used in shipbuilding and vehicles making. Aluminum 8011 are usually used in the from of
aluminum foil.
Wholesale Painted Aluminum Coil
The color painted aluminum coil has excellent corrosion resistance, durability and light
weight. It is widely used in public buildings, power plants, steel mills, chemical industry
and other industries. We have pre-painted aluminum coils with different aluminum alloys
as base metals. The colors and patterns depends on your needs.

2. Physical test
It is important to carry out a physical inspection to see if the paint has been painted and
the coil has been properly cured before being placed on the market for use.
1. Film thickness
For the color coated aluminum coil, the detection of film thickness is very important,
because it will affect the performance of the paint film. Poor adhesion or premature
corrosion can result if the first coat is not done properly. If the finish is left unfinished, it can
cause premature failure and damage due to weathering.
A thin film coating that is too thin will affect the durability and performance of the aluminum
coil. It can be tested by a coating thickness gauge. The coating film thickness gauges are
used to calculate performance, quality and cost.
2. Color test
The pre painted aluminum coils must maintain standard color to satisfy customers. Most
of the time, if there is a specific
requirement for a specific color, it
is important to provide the same
color in the final product.
Therefore, the consistency of
matching shades from run to run
is critical.
A few factors that you must
consider that affect color quality
are film thickness, substrate color, curing temperature and coating formulation.
3. Gloss
Gloss adds luster to color coated aluminum coils and gives them a uniform appearance.
The coated aluminum coil production includes many processes. It is is necessary to check
the consistency of gloss in the aluminum coil.
4. Adhesion
The coating consists of various adhesives and resins. This test is performed to check

3. T-bend, impact and scratch resistance.
Vision Test
After the physical inspection, it's time for a visual inspection. Here are a few ways you can
perform a visual inspection test.
1. Different appearance standards
Since prepainted aluminum coils are so versatile, it is important to test whether the
aluminium coil is suitable for the application. Therefore, you must perform quality checks
by visual inspection according to the industry of use.
2. Defects
The color difference, aluminum sheet damage or inconsistent thickness can affect the
performance of the wholesale painted aluminum coil. Perform visual tests to make sure
the panels work for different applications.
5182 6111 for Aluminum Car Body
Frames
Aluminum alloy is of light weight, high specific strength and rigidity, good corrosion
resistance, good electrical and thermal conductivity, which can be subjected to various

4. surface treatments. Therefore, aluminum alloy sheets are widely used in transportation,
new energy, civil construction, electronics and power engineering.
Aluminum sheets have become ideal materials for automobile lightweight due to their high
specific strength, good formability, corrosion resistance and easy recycling. Since the car
body accounts for at least 30% of the total weight of the car, the aluminization of the car
body has attracted the attention of car manufacturers in various countries in recent years.
The 6xxx aluminum alloys that can be strengthened by heat treatment including aluminum
6111, 6009, 6010, 6017, 6082 has good formability in the solution quenched state, and its
age hardening potential can be further exerted by the coating and baking process of the
stamped parts of the outer body of the car, so it becomes an ideal replacement material
for the car body frame.
Because of its low original yield strength, aluminium 6111 has the characteristics of easy
stamping and small spring back, relatively less die loss, easy shape control of sheet metal
parts after stamping.
And in the stage of baking paint after forming,
the strength of 6111 can be greatly improved
due to the precipitation strengthening effect of
heating at a constant temperature (about
170°C, 30min). The above advantages make
AA6111 aluminum alloy one of the most
popular materials for automobile body sheet
metal, with strong commercial potential.
Among the 5000 series alloys, 5023 with high
magnesium content has high strength and
good formability. But it is sensitive to
intergranular corrosion. Aluminum 5182 has
medium magnesium content. It has good intergranular corrosion performance and good
formability.
In terms of deep processing performance and tensile strength, 5052 aluminum alloy is far
inferior to 5182 alloy. Therefore, the preferred aluminum alloy material for complex

5. deep-drawing inner panels of automobiles is 5182-O aluminum thin plate.
5182 is a typical aluminum-magnesium alloy with good processing and forming properties,
corrosion resistance and good weldability. Mg dissolves in the Al matrix to form solid
solution strengthening, which makes the alloy have the characteristics of general steel in
terms of yield strength, tensile strength, formability and corrosion resistance. Therefore,
some countries choose 5000 series aluminum alloys( 5022, 5023, 5182) as automotive
inner panel materials.
Marine Grade Aluminum and Paint for Boat
Due to the advantages of light weight, strong corrosion resistance, high metal strength,
good weldability, and long life, the marine grade aluminum is widely used in the
manufacture of ships and marine engineering equipment, which greatly promotes the
development of the industry.
The chemical properties of aluminum and aluminum alloy are very active, but because it
can form a dense and passivated oxide film with oxygen, its corrosion resistance is much
better than that of steel. When aluminum alloy is used on ships, no matter where it is, it
will be more or less in contact with seawater, or be attacked by seawater droplets and
marine atmosphere, so it will be corroded to a certain extent.

6. The corrosion of marine grade aluminum sheet is a very complex process, which is not
only affected by the environment, but also related to the properties of the alloy. For ships,
the corrosion environment of different parts is different. The bottom of the ship is mainly
affected by the osmotic erosion of natural seawater and the attachment of aquatic
organisms, and the parts above the waterline are mainly affected by salt spray corrosion
and atmospheric aging. So we need to do certain protection for the boats.
For the parts above the waterline, the marine paint for the aluminum boat should have
good atmospheric aging resistance, good gloss retention and decoration, and have good
compatibility with the primer.
Polyurethane topcoats, alkyd topcoats, acrylic topcoats, etc. can be used, and now
polyurethane topcoats are usually used. With the continuous improvement of the
performance requirements of coatings, fluorocarbon coatings or epoxy and acrylic
modified fluorocarbon coatings with superior performance have also begun to be applied
to the supporting coating system of aluminum alloys.
Micro-arc oxidation treatment is a new surface treatment technology emerging in recent
years. It adopts higher energy density, introduces the anodic oxidation working area from
the Faraday area to the high-voltage discharge area. Through the joint action of
electrochemistry, thermochemistry and plasma chemistry, etc., a ceramic oxide film is
formed on the surface of the aluminum sheet.

7. The surface of marine aluminum plates has its special requirements for coatings. It is very
important to choose appropriate coatings and formulate appropriate matching for the
anti-corrosion effect of aluminum alloy ships. As one of the big aluminum plate suppliers,
Haomei Aluminum provides rich alloys of aluminum plates with marine certification.
Aluminium 8011 applications
Unlike pure aluminum, 8011 aluminium is an Al-Fe-Si alloy metal with better properties in
terms of tensile strength, yield strength and processability. What are the aluminium 8011
applications? It is the most widely used material in food packaging, medicine packaging,
bottle cap material, transformer and air conditioner.
Flexible packaging
Food packaging makes full use of the good barrier properties of aluminum foil, which can
effectively block the gases in the air that are easy to deteriorate food, such as oxygen.
Moreover, the aluminum foil is opaque and has good shading properties to prevent certain

8. foods from being discolored or deteriorated due to exposure to light.
Food container
The food container made of the aluminum foil is resistant to high temperature, oil, acid and
alkali. It will not decompose with food. Haomei aluminum foil provides a food-grade SGS
report. Compared with other packaging materials, aluminum foil can maintain food flavor
faster and better.
Aluminum bottle cap material
Aluminum bottle caps are very common in life, such as cosmetic bottle caps, cans, wine
bottle caps, medical bottle caps, etc. The requirement of the bottle cap material is to
ensure the airtightness and stability of the product, and secondly, it must also have the
effect of anti-theft. The more commonly used bottle cap material is 8011 aluminum foil that
is divided into cast-rolled and hot-rolled.
PTP blister packaging
Pharmaceutical PTP aluminum foil is mainly used for aluminum-plastic blister packaging
of pharmaceutical tablets, capsules, pills, etc. Pharmaceutical PTP aluminum foil is
generally made of aluminum alloy, which has excellent mechanical properties and pinhole
performance, and its roughness and gloss are better than pure aluminum foil, which is
conducive to printing.
Air conditioner fins
8011 aluminum foil is for the manufacture of heat exchanger fins for air conditioners. The
common tempers are H22/H24/H26, and the thickness range is 0.08 to 0.2mm. There are
certain differences in the strength and plasticity of each state. The choice of which alloy
grade or which temper of aluminum foil to choose depends on the actual situation.

9. Aluminum transformer winding
Aluminum foil is mainly used for small and medium-sized transformers with a capacity of
less than 2000kVA. Its advantage is that it can increase the filling factor of conductive
materials in the iron window, and the volume can be reduced. At the same time, it can
increase the thermal conductivity of the winding radial direction and ensure a low
temperature gradient, thereby suppressing the hot spot temperature of the winding.