LF391
Conductive Copper Ink – Durable and Flexible, PI
Copprint LF391 screen printable paste is formulated to provide high electrical conductivity on PI.
Technology: Screen printing
Appearance: Copper paste
Filler Type: Copper
Substrate:PI
Key Product Benefits
Drying: Hot air/Reflow oven
Sintering: Hot press
Application: Conductive Copper Ink
Common Applications: Printed electronics
TYPICAL PROPERTIES OF COPPRINT NANO COPPER PASTE (UNCURED)
Particle Size, μm D50 < 1.0, D90 < 7.0
Solid Content, after 10 minutes @150ºC, 91.4±1.5
Density, 3.8±0.2 g/ml
Viscosity @ 250C , DVEHA Brookfield spindle 14, 20 rpm, mPa∙s (cps) 45000-55000
Thixotropic Index (2/20 rpm) 5.6
Coverage area @ 10μm dry film thickness, 16.7 m²/kg
Shelf Life, @<-10°C, 180 days
Pot life @ 25°C, Hours 72
Drying and Sintering
Drying cycle: 120sec @900C (Hot air, Reflow oven)
Sintering cycle: 180 sec @ 200°C (Hot press)
Conditions (time and temperature) may vary based on customers’ experience, application requirements,
drying equipment, oven loading and actual oven temperatures.
TYPICAL PROPERTIES OF CURED MATERIAL
Physical Properties
Adhesion: (tape test 3M Scotch 234) pass
Cross cut test ISO 2409-2007 3-4 b
Electrical Properties: Sheet resistivity
Hot press @ 200ºC, 180sec ohm/sq/25 μm < 0.009
DIRECTIONS FOR NANO COPPER INK USE
Copprint LF-361 is supplied as a single-component formulation ready for use.
SCREEN PROPERTIES
Emulsion, Solvent resistant emulsion: 10 to 40 μm
Squeegee Shore Hardness: 70 to 90 Shore
Screen Type: Polyester screen, mesh 150 to 250
EQUIPMENT MAINTENANCE & CLEAN-UP
The equipment can be cleaned with Dowanol DB followed by water and repeated if necessary.
STORAGE
Store sealed container under -10°C in a dry location (Long storage above -10°C can adversely affect product properties).
Paste removed from containers may be contaminated during use.
Do not return Paste to the original container.
Copprint is not responsible for paste which has been contaminated or stored under faulty conditions.
For safe handling of Copprint Nano Ink consult the Safety Data Sheet (SDS.
For technical data please see the Technical Data Sheet (TDS)
