Chemtronics CW3300 User Manual

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Material Polymeric Conformal Coat

Color Clear, Green, Blue, Black, White

VOC Content 630 g/L

Temperature Range -67 to 255°F (-55 to 125°C)

Tack-Free Time < 5 Minutes

Dielectric Breakdown >500 volts/mil DC

Dielectric Constant 3 - 4

Dissipation Factor < .001 @ 1 KHz

@ -55 to 155°C

Flexibility Excellent

Moisture Resistance Excellent

Typical Thickness 2 - 3 mil

Shelflife 2 years

CHEMTRONICS

Technical Data Sheet

CircuitWorks Overcoat Pen

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 c omponent system  Hard, durable coating  High dielectric st re ng th  Helps preve nt arcing and shorts  Contains fluorescent indicator  Protects against moisture damage  Meets requir ements of MIL-I-46058C

and IPC-A-610D

 Helps prevent sta tic d isc har ge problems

on sensitive components

TYPICAL APPLICATIONS



CircuitWorks

Overcoat Pen may be used for electronic s ap pl ic ati o ns in:

 Circuit Board Manufacturing  Data Communications  Aerospace  Instrumentation  Controls  General Maintenance and R epair

TYPICAL PRODUCT DATA AND PHYSICAL PROPERTIES

Composition

Cured Compound

Resistivity >1012 ohm-cm @ 50 VDC

Thermal Shock Resistance Pass, 10 Cycles

Adhesion Good to Excellent

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.

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COMPATIBILITY



The CircuitWorks

Overcoat Pen mate rial is generally compatible with mater ials used in printed cir cuit board fabrication. As with any adhesive/sealant, compatibility with substrate should be dete rmined on a noncritical ar ea prior to u se.

USAGE INSTRUCTIONS Read MSDS carefully pr ior 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 co ntact.

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 a dded 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 200°F (93°C) is recommended for more demanding applications and for enhancing th e 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 CW3300BLACK 4.9g / 0.16 oz. Black CW3300WHITE 4.9g / 0.16 oz. White

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.



and Electro-Wash are

CHEMTRONICS 8125 COBB CENTER DRIVE KENNESAW, GA 30152 1-770-424-4888

REV. J (08/13)

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