TDS # CW3300
PRODUCT DESCRIPTION
CircuitWorks
Overcoat Pen is ideal for
protecting and insulating circuit board
traces, components, and other delicate
electronics. This highly effective acrylic
conformal coating provides excellent
protection against shorts, moisture, abrasion,
fungus, and other environmental hazards.
Allows for easy repair of solder mask in
prototype, manufacture and repair of circuit
boards.
Simple to use, single component system
Hard, durable coating
High dielectric strength
Helps prevent arcing and shorts
Contains fluorescent indicator
Protects against moisture damage
Meets requirements of Mil-I-46058C
and IPC-A-610D
Helps prevent static discharge problems
on sensitive components
TYPICAL APPLICATIONS
CircuitWorks
Overcoat Pen may be used
for electronics applications in:
Circuit Board Manufacturing
Data Communications
Aerospace
Instrumentation
Controls
General Maintenance and Repair
CHEMTRONICS
Technical Data Sheet
CircuitWorks Overcoat Pen
TYPICAL PRODUCT DATA AND
PHYSICAL PROPERTIES
Composition
Material Polymeric Conformal Coat
Color Clear, Green, Blue
VOC Content 630 g/L
Cured Compound
Temperature Range -67 to 255F (-55 to 125C)
Tack-Free Time < 5 Minutes
Resistivity >1012 ohm-cm @ 50 VDC
Dielectric Breakdown >500 volts/mil DC
Dielectric Constant 3 - 4
Dissipation Factor < .001 @ 1 KHz
Thermal Shock Resistance Pass, 10 Cycles
@ -55 to 155C
Flexibility Excellent
Moisture Resistance Excellent
Adhesion Good to Excellent
Typical Thickness 2 - 3 mil
Shelflife 2 years
CHEMICAL RESISTANCE
CircuitWorks
Overcoat Pen has excellent
resistance to water based cleaners and
limited resistance to aggressive organic
solvents such as acetone. The chemical
resistance of CW3300 can be enhanced by
heat curing.
Documentation Provided By HMC Electronics
33 Springdale Ave. Canton, MA 02021
http://www.hmcelectronics.com
(800) 482-4440
COMPATIBILITY
The CircuitWorks
Overcoat Pen material is
generally compatible with materials used in
printed circuit board fabrication. As with
any adhesive/sealant, compatibility with
substrate should be determined on a noncritical area prior to use.
USAGE INSTRUCTIONS
Read MSDS carefully prior to use.
Cleaning: For best adhesion, clean the
board with a Chemtronics
Electro-Wash
cleaner in order to remove any surface
contamination which may prevent adequate
material contact.
Application: The overcoat material is
dispensed throughout the CircuitWorks
Overcoat Pen. Squeezing the pen body
while pressing down on the surface will
allow the material to flow.
Thinning: The overcoat material has been
optimized for the CircuitWorks
Overcoat
Pen and thinning is not normally necessary.
However, propyl acetate may be added with
thorough mixing to make slight adjustments
for ease of application in the bulk form.
Drying: The overcoat material dries in 5 to
10 minutes at room temperature. A heat
cure of 5 - 10 minutes at 200F (93C) is
recommended for more demanding
applications and for enhancing the chemical
resistance.
Clean-Up/Removal: The overcoat material
can be removed from surfaces using acetone.
AVAILABILITY
CW3300C 4.9g / 0.16 oz. Clear
CW3300G 4.9g / 0.16 oz. Green
CW3300B 4.9g / 0.16 oz. Blue
TECHNICAL & APPLICATION
ASSISTANCE
ITW 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. ITW
CHEMTRONICS
does not guarantee the accuracy
of the data and assumes no liability in connection
with damages incurred while using it.
Chemtronics, CircuitWorks
and Electro-Wash are
registered trademarks of ITW Chemtronics. All rights
reserved.
All other trademarks herein are trademarks or
registered trademarks of their respective owners.
MANUFACTURED BY:
ITW CHEMTRONICS
8125 COBB CENTER DRIVE
KENNESAW, GA 30152
1-770-424-4888
REV. G (06/09)
DISTRIBUTED BY:
Documentation Provided By HMC Electronics
33 Springdale Ave. Canton, MA 02021
http://www.hmcelectronics.com
(800) 482-4440