Palladium silver conductor paste DT4306

   LEED DT4306 £¨Pd/Ag£©is a environmentally conductor paste designed for thick film circuit on stainless steel substrate. It is toxic element free up to European RoHS environmental regulation and can effectively restrain from Ag  ion  moving. It has features of strong adhesive power, good weldability, excellent ageing resistance, small resistivity and good rheology. DT4306 is also designed on ceramic for making environmental resistance plate, consumed hybrid integrated thick film circuit, ceramic capacitor, filter and household appliances.

Paste trait¡¡

Composition

Noble metal, Organic solvent

Form and color

Paste form, silver grey

Rheology

Thixotropic, screen printable paste

Viscosity

180¡À20 Pa•s( 10 rpm, 25¡æ¡À0.5¡æ)

Fineness

£¼18¦Ìm

Solid content

81¡À1%

Shelf time

6 months £¨5¡«10¡æ£©

Recommended technics

Material of substrate

print LEED JZ4301 on 430 type stainless steel substrate

Screen mesh

200 stainless steel screen  (e. g., SD90/40,BOPP)

Leveling time

room temperature£¬2¡«3min

Drying temperature

120¡«150¡æ /( >15 min)

Firing

Range of peak temperature £º850¡æ-900¡æ

The perfect firing temperature£º865¡æ

Preservation time of peak temperature£º>10min

Time of ascent/descent£º10¡«12 min

Thinner

LEED DZ-XS

 

Typical properties

Fired thickness

20¡À2 ¦Ìm

Spreading rate

¡«50cm2/g £¨fried thickness :20¦Ìm£©

Conductivity

¡Ü 5mΩ/sq.

Weldability

good

Adhesive force

¡Ý40 N(rise upright, 2.0 mm x 2.0 mm,62 Sn/36 Pb/2 Ag,220¡æ¡À5¡æ)

Ageing in 48 hours at 150¡æ: ¡Ý35N

 

Notice of usage and storage:

1.  The used material should be collected and sealed up alone. Don¡¯t mix with other untapped material.

2.  Before using the paste, it is essential to take out of from icebox or icehouse firstly and place it at about 25¡æ. Keep stir it slowly and fully till the composition of this paste is uniform.

3.  It should be guarantee that the room temperature and appliance temperature remains 26¡À2¡æ during printing.

4.  Paste material placed on the screen should be moderate and added regularly when making screen-printing.

5.  Dilute the paste moderately to recover the printing performance.

6.  The storage temperature is recommended between 5 and 25¡æ. The shelf time is commonly 6 months.

7.  Please test for products suitability before mass production to avoid causing unnecessary losses.

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