Decorative Diaplay Rack Powder Coating , Epoxy Polyester Resin Silver Powder Coat

Application Area

1. Household Applications

7. Used for Security Door;

2. Car Coating

8. Radiator & Heat Sink;

3. Used for Valve

9. Corrosion Prevention of Pipes;

4. Track Traffic

10. Communications Equipments;

5. Aerospare field

11. Hardware & Brightwork;

6. Fitness Equipment

12. Zincing & Aluminium;

Composition

It is made of epoxy resin or polyester resin, curing agent, pigment, filler and additives through melting, extruding, grinding and processing.

Main features

It contains no lead heavy metal.

Application

It is applicable to the coating of products with requirements for metal contents.

Product series

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

Technical indexes

Residue on sieve %125μm

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

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 1,000 h

≤ Grade 1

Damp-heat resistance 1,000 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

Method of Application

It is applicable to high voltage electrostatic spraying
Spraying voltage: 50-90 kV; air pressure for spraying: 0.1-0.2 Mpa; distance between the gun and workpiece: 200-300 mm
Curing condition: 180-200℃/10-15 minutes or customized according to customers’ requirements.
Additional coating: different measures should be taken for the specific conditions: 1. If the requirements are not high, paints with the same color can be used for additional coating; 2. In case of high requirements, spraying and curing should be made after polishing the omitted part with sand paper and spraying the whole surface.