aluminum mill finish

Mill finish aluminium means the extrusion products without any surface treatment; Common Mill finish aluminium metal are aluminum sheet, aluminum plate, aluminum coil, aluminum foil, aluminum disc/circle, aluminum checkered/tread plate, aluminum embossed coil/sheet etc.

The 2 main reasons for choosing Mill finish aluminum:

Aluminum is versatile and relatively low-cost. It has a high strength-to-weight ratio and possesses non-corrosive properties. It is environmentally friendly and can accept high-performance coatings.

Reason #1: Finishes can improve corrosion resistance.

Aluminum has a naturally occurring oxide film that protects it from corrosion. This oxide film is sufficient for many applications. But in extreme environments, extra protection may be needed.

Reason #2: Finishes can enhance the appearance of the aluminum.

Depending on the look you are trying to achieve, you will need to select the appropriate finish. Maybe you want something that’s brightly colored. Maybe you’re trying to achieve a “mirror” finish. You need to choose a finish that will give you the look you want to achieve.

What is meant by “Mill Finish”?

“Mill Finish” is the term that Lions aluminum uses to describe its aluminum trims that have no finish applied to them. It is raw aluminum from our mill and it can be field primed and painted. Typically, Mill Finish has a shiny or “mirror-like” appearance with some visible manufacturing lines.

What is meant by “Mill Finish” is aluminum in its original form and appearance as its comes directly from the rolling mill or an aluminum extrusion mill.

Here are 6 different types of finishes for extruded aluminum:

  • #1 Mechanical Finishes.
  • #2 Pretreatment. The aluminum is either etched or cleaned with alkaline or acidic materials.
  • #3 Bright Dipping.
  • #4 Anodizing.
  • #5 Liquid Paint.
  • #6 Powder Coating.
  • #7 Sublimation.

Here are some of the mill finish aluminium sheets produced by Lions aluminium to help you have a better understanding.

3104 aluminum
3104 aluminum

3104 aluminum

3104 aluminum alloy main alloying addition is manganese, it has high tensile strength ≥ 275Mpa, elongation up to 20%, excellent deep drawing and ductility. The most common applications are beverage cans and beer cans.

5005 Aluminum Sheet
5005 Aluminum Sheet

5005 Aluminum Sheet

5005 aluminum sheet and plate contains 0.8% magnesium, It has medium strength, good weldability, commonly available in flat rolled aluminum coil, sheet and plate from a wide range of producing mills.

5 bar aluminum checker plate
5 bar aluminum checker plate

5 bar aluminum checker plate

5 bar aluminum checker plate (tread plate) is a smooth sheet with a regular diamond pattern on one side. It is used for flooring, cladding, tool boxes, ramps or anything that requires an ultra-hard wearing property.

aluminum diamond plate
aluminum diamond plate

aluminum diamond plate

Aluminum diamond plate sometimes called aluminum tread plate, aluminum floor plate, or aluminum checker plate. the common size is 4x8', the thickness is 1/8, 3/16, 1/4, etc., it provides intensity, non-slip, and durability.

Thick aluminum foil
Thick aluminum foil

Thick aluminum foil

Thick Aluminum Foil is thicker than regular aluminum foil. Some thicker aluminum foils or household  extra heavy duty aluminum foils can be up to 0.94 mils thick.

5052 Aluminum Sheet Plate
5052 Aluminum Sheet Plate

5052 Aluminum Sheet Plate

5052 aluminum sheet  is alloyed with 2.5% magnesium and 0.25% chromium. 5052 aluminum sheet easily welded and highly corrosion-resistant.

Heavy duty aluminum foil
Heavy duty aluminum foil

Heavy duty aluminum foil

Heavy Duty Aluminum Foil is a thicker aluminum foil.Can be cut into 18 inch x 500ft and other sizes, silver or colored. offers extra protection against both high heat and freezing cold, making it perfect for cooking that calls for high-quality performanc.Find heavy duty aluminum foil supplier near you.

5X10 aluminum sheet and plate
5X10 aluminum sheet and plate

5X10 aluminum sheet and plate

5x10 aluminum sheet is available in lengths and widths of 5 feet and 10 feet. A variety of alloy grades of aluminum sheet can be cut to this size. Common thicknesses include 1/4', 1/8', 1/16', 0.125, 0.32, 0.40, etc.

4X8 aluminum sheet plate
4X8 aluminum sheet plate

4X8 aluminum sheet plate

The 4x8 aluminum sheet plate is used for truck and trailer skins, ships, buildings, can be painted in different colors, and the surface can be processed into tread plate, diamond plate. Factory price for sale.

Here are 6 different types of finishes for extruded aluminum:

#1 Mechanical Finishes

Aluminum can be buffed, blasted, polished, grinded or sanded. These finishes can improve surface quality or prepare the aluminum for other cosmetic finishes.

#2 Pretreatment

The aluminum is either etched or cleaned with alkaline or acidic materials. Then a pretreatment coating is applied. This coating enhances powder or paint adhesion and provides resistance against corrosion.

#3 Bright Dipping

An extrusion can be bright dipped, giving the aluminum a specular or “mirror” finish. To do this, technicians put the into a special dip solution (a combination of hot phosphoric and nitric acids). After bright dipping, can also be anodized, thickening the metal’s corrosion-resistant oxide layer.

#4 Anodizing

This electrochemical process provides additional protection aside from the natural oxide film. A durable, porous anodic oxide layer is formed on the surface of the aluminum. Anodized aluminum will also accept vibrant colors. You can anodize any kind of aluminum alloy.

#5 Liquid Paint

These coatings come in many colors and provide a uniform film thickness. Liquid coatings generally contain volatile organic compounds (VOCs). They are driven off during the curing or baking process. When the VOCs are gone the volume solids form a film on the extrusion.

#6 Powder Coating

Powder coatings leave behind a film that can meet stringent performance criteria. At the same time, they do not contain VOCs. This is ideal for meeting environmental regulations on VOCs. The product is applied as a solid on the extrusion. While going through the oven process, solid particles fuse together to form the film.

#7 Sublimation

Have you ever seen aluminum extrusions that look like wood? After applying a base coat of powder, can go through sublimation. Technicians wrap the in a thin film with a pattern on it. The sublimation process transfers that pattern directly onto the extrusions.

Packing

Aluminum products of Lions meet the export popular.

Plastic movie and brown paper can be protected at customers’ need. Also timber case or timber pallet is adopted to shield products from harm for the duration of the delivery.

There are styles of packaging, which is eye to wall or eye to sky. Customers can choose either of them for their convenience.

There are 2 tons in one package, and loading 18-22 lots in 1×20′ container, and 20-24 tons in 1×40′ container.

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