PRODUCT DESCRIPTION
CircuitWorks Flex Conductive Pen makes
instant highly adherent silver traces on
flexible polymeric substrates used in flex
circuitry. CW2900 is used in prototype,
rework and repair of My lar , Melinex, and
other flexible circuits by linking
components, repairing defective traces, and
making smooth jumpers. The Flex
Conductive Pen traces also have excellent
adherence to Indium Tin Oxide (ITO)
substrates. The silver traces dry in minutes
and have excellent m echanical properties.
! Single component system
! Highly adherent/flexible polymer
! Fast drying
! Excellent electrical conductivity
! Operating tem perature to 212°F (100°C)
TYPICAL APPLICATIONS
CircuitWorks Conductive Pen may be used
for electronics applications including:
! Circuit Trace Repair
! Solderless Linking of Components
! EMI Shielding
! Grounding
! Quick Prototype Modifications
TYPICAL PRODUCT DATA AND
PHYSICAL PROPERTIES
Composition
Material Silver Filled Polymer
Silver Particle Size < 20 microns
Color Silver Gray
Properties
Conductivity 0.05-0.15 ohms/sq/mil
Max. Temperature 212°F (100°C)
Tack-Free Time @ 25°C 5 Minutes
Cure Time @ 25°C 1 Hour
Cure Time @ 80°C 15 Minutes
Electrical Conductivity Excellent
Tape Adhesion Excellent
Flexibility Excellent
Chemical Resistance Very Good
Shelflife 12 months
COMPATIBILITY
CircuitWorks Flex Conductive Pen
material has excellent compatibility with
materials used in flexible circuit board
fabrication. As with any chemical system,
compatibility with the substrate must be
determined on a non-critical area prior to
use.
TDS # CW2900
CHEMTRONICS
Technical Data Sheet
CircuitWorks
Flex Conductive Pen
USAGE INSTRUCTIONS
Read MSDS carefully prior to use.
Cleaning: For best adhesion, clean board with
Chemtronics Electro-Wash PX Cleaner Degreaser
in order to remove any surface contamination which
may prevent adequate material contact.
Mixing: Although this system has been formulated
to resist hard-packing, it should be shaken
vigorously for 30 seconds to insure the proper
dispersion of the silver flakes. If pen has been
allowed to sit idle for a long period of time, the
mixing ball may seize in the barrel. To free the ball
use force to tap the barrel end of the pen until the
ball begins to move inside the pen.
Application: The conductive ink is dispensed
through the CircuitWorks Flex Conductive Pen.
Squeezing the pen body while pressing down on the
surface will allow the material to flow, enabling the
trace to be drawn. Practice with the pen before
attempting detail work.
Thinning: The conductive ink has been optimized
for the CircuitWorks Flex Conductive Pen and
thinning is not normally necessary. However, a
small amount of Butyl Acetate may be added with
thorough mixing to make slight adjustments for ease
of application for other dispensing systems.
Clean-up/Removal: The conductive ink may be
cleaned or removed using a strong organic solvent
such as acetone or Chemtronics Electro-Wash
Two-Step.
Curing: Tack-free in about 5 minutes at room
temperature. Achieves electrical conductivity
within 15 minutes. Heat cure for 15 minutes at 80
to 90°C for maximum conductivity, durability and
chemical resistance.
AVAILABILITY
CW2900 8.5 g (0.3 oz.) Pen
TECHNICAL & APPLICATION
ASSISTANCE
Chemtronics provides a technical hotline to answer
your technical and application related questions.
The toll free number is: 1-800-TECH-401.
NOTE:
This information is believed to be accurate. It is
intended for professional end users having the skills
to evaluate and use the data properly.
CHEMTRONICS does not guarantee the accuracy
of the data and assumes no liability in connection
with damages incurred while using it.
MANUFACTURED BY:
ITW CHEMTRONICS
8125 COBB CENTER DRIVE
KENNESAW, GA 30152
1-770-424-4888 REV. D (03/01)
DISTRIBUTED BY:
