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WF-ED2010 CED Coatings

WF-ED2010 CED coatings are composed of emulsion binder and quaternary amine salt dispersed pigment paste, which improves greatly the sedimentation of pigments in the bath. WF-ED2010 CED coatings do not Pb, Cd, Hg, Cr, PBBs or PBDEs. WED-2010 CED coatings have characteristics of high throw power and good edge coverage. WF-ED2010 CED coatings were designed to meet the corrosion requirement of automotive industry and electric appliances.

1)         Properties Index of Coatings

Material

Resin

Paste

Blend ratio( wt.)

4

1

Color

Milky

Black

Gray

Solids (wt.),  %

36.0 ± 2.0

45.0 ± 2.0

55.0 ± 2.0

Conductivity,  μs/cm

1800±400

1200±400

1200±400

pH

6.4±0.4

7.2±0.4

7.2±0.4

2)         Process parameter

Item

Spec.

Bath Solids %

19±1%

Bath Conductivity µs/cm

1400±400

Bath pH

6.4±0.3

Bath Solvent, 

1? 2

Permeate Conductivity,  µs/cm

1400±400

Anolyte Conductivity  µs/cm

300-800

Bath Temperature,

28-32

Coating time, min 

2 - 3

Coating volts, V

150 - 300

Rupture, volts 

350

Baking

170×30min*

Shrink loss %      

8

3)         Film Properties

Item

Demand

Method

Appearance

Good

 

Film Build ,  µm

15 ? 30

GB/T 1764-1989

Gloss  (60º)

50 ? 80

GB/T 9754-1988

Flexibility,  mm      

2

GB/T 1731-1993

Pencil Hardness 

3H

GB/T 6739-1996

Cross-hatch Adhesion  ,

100/100

GB/T 1720-1989

Impact,  kg · cm

50

GB/T 1732-1993

 L panel 

Pass

 

Throw power, cm       

20

Ford Box (250V/3min)

* SST             

1000 hrs

GB/T 1771-1991

* Resistance to water   

500 hrs

GB/T 5209-1985

Note* Bonder standard phosphate steel panel.

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