Base
POW-THIN 250 Series thermosetting powders are designed for Thin Film PCM Powder Coatings. Specially designed Polyester resins, hardener, and Pigment to get high coating efficiency .
POW-THIN 250 Series can be formed stable film with 30~40¡×¡©D.F.T compared with general powder coatings that can be formed it with 60~80¡×¡©. It is continuous and highly automated process for coating metal . The metal is then cleaned and chemically treated in preparation for painting.
Pretreatments may be used to provide the bond between the metal and the coating, in addition to adding any corrosion resistance. The type of chemical treatment varies with the type of metal being used. This type of powder can substitute for liquid type paints the result that overcomes the problem of having extra fine particles by technique of particle controls.
Field of application
Interior and exterior materials for building |
Electric home appliances |
Line Process
- Coil Load
- Degreasing & Pretreatment
- Squeezing & Drying, Cooling
- Back side Coating & Drying
- Powder Spray
- Curing(IR) & Cooling
- Winding & Unloading
Line Process : Conveyor System
Properties of POW-THIN 250 Serise
Properties
|
Test Method |
Value |
Impact
|
ASTM D2794 |
25Kg*cm |
Bending
|
90¢®¨¡ Bending |
No crack and No peeling of film when variation value 3% |
Particle size
|
Mean particle size : 20 ~ 25¡Æ
|
Particle Size Analyzer |
Adhesion
|
ASTM D3359
|
100/100 |
Salt spray
|
ASTM B117
|
>480hrs |
Erichsen
|
ISO 1520 |
>6mm |
Film Thickness
|
1.2 ~ 1.6 Mils |
| Curing Schedule |
10 minutes / 200¢µ ~ 1 minutes / 250¢µ |
REMARK : Tested at 30 ~ 45§¡© thickness on Bond rite 1000 CRS Curing temperature given is metal temperature, ascending temperature time has to be added considering thermal inertia's of metal as to be absolutely clean, dry and free of any grease. (Galvanized Steel free of ¢®¢çwhite rust' Aluminum : Not anodized).
Theoretical sprayed area per weight
56~64 g/§©ø (D.F.T; 40§¡©, Efficiency; over 90%, there is a difference by using of reclaimed powder or film thickness .
Required amount(g/ m2)
=
|
| Dry film thickness 1) ¡Æ¡Í Specific gravity 2 ) |
|
| Solid of the film 3) ¡Æ¡Í Efficiency of powder spread 4) |
|
=
|
| Dry film thickness 1) ¡Æ¡Í Specific gravity 2 ) |
|
| Efficiency of powder spread 3) |
|
Cost of powder($/m2)
=
|
| Dry film thickness ¡Æ¡Í Specific gravity ¡Ë¡Í Cost of powder($/kg) |
|
| 1000 ¡Ë¡Í Solid of the film ¡Æ¡Í Efficiency of powder spread |
|
|
| Required amount ¡Æ¡Í Cost of powder($/kg) |
|
| 1000 |
|
1) unit ; §
2) 1.2 ~1.8 (depend on the color)
3) Generally it is 1
4) Over 95% if using recovery powder |
