Powder coating for buliding coating ,such as aliumium extrusions, shelvings, spaying on the surface of alum door and window....Polyester power coating is recommend for this use.

Powder coating/powder paint is a kind of coating that is used as a free-flowing, dry powder, and dose not need a solvent to keep the binder and filler parts in a liquid suspension form, and is typically applied electrostatically and is then cured under heat to allow it to flow and form a hard finish that usually is tougher than conventional paint.

Powder coating/powder paint is widely used for coating of metals, such as drum hard, aluminium extrusions, warehouse, hold appliances and automobile and bicycle parts. Newer technologies allow other materials, such as plastics, glass, MDF(medium-density fibreboard) coated using different new methods.

The main types of powder coating,

Sort by chemistry:

Epoxy powder coating

Epoxy-polyester/hybrid powder coating

Polyester-TGIC

Polyester TGIC-free

Sort by Finish and Characteristic

Anti-gassing powder coating

Anti-graffiti powder coating

Antimicrobial powder coating

High temperature resistance

Crocodile skin powder coating

Chrome effect powder coating

Metallic/peal powder coating

Heat-transfer/Sublimation powder coating

Wood effect powder coating

Wrinkle effect powder coating

Sand effect powder coating

Zinc rich epoxy primers

Transparent clear topcoat

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Advantages of Powder coating/powder paint:

Tough, durable, lasting coating for metals. Excellent hardness and abrasion impact resistance gives improved product performance over most liquid coatings.

Wide range of colors.

Environmentally friendly outsourcing option to avoid permitting for solvent-based paints.

Less process variation results in consistence color and appearance of the product.

High film builds and excellent edge coverage gives better resistance to corrosion with proper pretreatment.

Coatings can be easily formulated for specific applications such as prolonged exposure to sunlight, the ability to survive in highly corrosive environments, flexibility to allow forming after coating, or high durability and resistance to chipping.

Application Schedule:

Applied by electrostatic spraying gun that can provide negative tension of 60-80kV

Curing Schedule: 10-15minutes at 180°C-200°C

Optimal film thickness: 60-90μm

Powder Properties

Specific gravity: 1.25-1.75(depend on colors)

Particle size distribution(Laser Particle size analyser): Less than 5% above 100μm;50-65% above 32μm

Average particle size:35-45μm

Average Coverage

8-12 square meters/kg, thickness 60μm(100% of the powder coating utilization rate)

Gloss

Supper Matt(<10%), Matt(<20%),Sub-gloss(20%-50%),Semi-gloss(50-75%),

Glossy(76%-85%),High gloss(>85%)

Texture

Wrinkle/Sanded/Netted/Crackle/Crocodile/Hammer/Woodgrain/Metallic/Pearl/Antique

Color

RAL color, full color range is available

Substrates and Pre-treatment

In order to obtain optimal anti-corrosion properties it is recommended to apply a chemical pretreatment prior to powder coating application

Ferrous metals(cold rolled steel, cast iron ect.):Iron or Zinc phosphation

Zinc surfaces(Galvanized steel, zinc alloy):Chromation or Zinc phophation

Aluminum alloys:Chromatation

Storage

Should be stored under dry conditions with good ventilation at a temperature not exceeding 30°C

Storage period recommended should not exceed 6 months, in case exceeding 6 months without affecting their free flowing properties, the powder will still have optimal characteristics.

Should be protected from excessive heat, humidity, water and contamination with foreign materials such as powder, dust, dirt ect.

Any leftover powder should be kept in an appropriate area that is cool and dry. Do not expose to the air too long as the powder properties may deteriorate with the moisture.

We offer powder coating capabilities that include a wide spectrum of colors, thickness, textures, softness, edge coverage, flexibilities, machinabilities, smoothness and temperature ranges. Free samples are available.

If you want to know more on powder coating in buliding coating, please feel easy to contact me

at Mobile phone: +0086 13222050182 Nik Luo