Powder Paint for Aluminum Profile

Composition

It is made of excellent polyester resin, curing agent, all kinds of high quality pigments, filters and additives through processing

Main features

Excellent durability, decoration and process-molding performance;

Excellent resistance to ultraviolet light and high humidity environment;

Excellent physical and mechanical performance;

Excellent resistance to heat and chemicals.

Application

It can be applied to building aluminum profiles such as aluminum frames, aluminum doors and windows, corridors, partition plates and curtain wall.

Product series

It can be made into series of products according to customers’ requirements, such as common powder with various glosses and colors, art powder and power coating with metal effect.

Technical 

indexes

Residue on sieve 125 μm

0 or based on negotiation

Color and appearance of paint film

The paint film should be smooth but slight orange peel is allowed

 and the color should meet the color difference specified.

Hardness

≥2 H

Bending mm

2

Gloss (60°)

High gloss ≥86, semi gloss 21-85, matt ≤20

Adhesive force (1×1 mm) Grade 6×6

0

Impact resistance kg.cm

≥40

Acid resistance (HCI 3%)240 h

The film has no change.

Alkali resistance (NaOH 5%) 168 h

Slight change is allowed but it shall be recovered within 2h

Salt spray resistance 400 h

≤ Grade 1

Damp-heat resistance 500 h

≤ Grade 1

Film thickness μm

50~60

Surface 

prepartion

The corresponding treatment method should be used based on the substrates, such as phosphating, chromizing,

 shot blasting or blast cleaning

1. The surface roughness should be 30 ~75 μm if reaching Grade Sa2.5 by shot blasting or blast cleaning.

2. Phosphating: degreasing- derusting- neutralizing- surface control- phosphating- passivating

Appearance of phosphating film: The phosphating film should be crystallized densely, continuously and evenly.

3. Chromizing: degreasing- rinsing- immersion cleaning- deoxidating- rinsing- chromizing