aluminium mill finish

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

The 2 main reasons for choosing Mill finish aluminium:

Aluminium 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.

Aluminium 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 aluminium.

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 Tigers aluminium uses to describe its aluminium trims that have no finish applied to them. It is raw aluminium 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 aluminium in its original form and appearance as its comes directly from the rolling mill or an aluminium extrusion mill.

Here are 6 different types of finishes for extruded aluminium:

  • #1 Mechanical Finishes.
  • #2 Pretreatment. The aluminium 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 Tigers 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 Aluminium Sheet
5005 Aluminium Sheet

5005 Aluminium Sheet

5005 aluminium 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 aluminium checker plate
5 bar aluminium checker plate

5 bar aluminium checker plate

5 bar aluminium 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.

aluminium diamond plate
aluminium diamond plate

aluminium 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 aluminium foil
Thick aluminium foil

Thick aluminium foil

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

5052 Aluminium Sheet Plate
5052 Aluminium Sheet Plate

5052 Aluminium Sheet Plate

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

Heavy duty aluminium foil
Heavy duty aluminium foil

Heavy duty aluminium foil

Heavy Duty Aluminium Foil is a thicker aluminium 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 aluminium foil supplier near you.

5X10 aluminium sheet and plate
5X10 aluminium sheet and plate

5X10 aluminium sheet and plate

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

4X8 aluminium sheet plate
4X8 aluminium sheet plate

4X8 aluminium sheet plate

The 4x8 aluminium 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 aluminium:

#1 Mechanical Finishes

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

#2 Pretreatment

The aluminium 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 profile into a special dip solution (a combination of hot phosphoric and nitric acids). After bright dipping, profiles 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 aluminium will also accept vibrant colors. You can anodize any kind of aluminium 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 aluminium extrusions that look like wood? After applying a base coat of powder, profiles can go through sublimation. Technicians wrap the profiles in a thin film with a pattern on it. The sublimation process transfers that pattern directly onto the extrusions.

Packing

Aluminium products of Tigers 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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