CHEMTRONICS Technical Data Sheet TDS # CW2900 CircuitWorks Flex Conductive Pen 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 Mylar, 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 mechanical properties. ! ! ! ! ! Single component system Highly adherent/flexible polymer Fast drying Excellent electrical conductivity Operating temperature to 212F (100C) 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 Particle Size Color Silver Filled Polymer < 20 microns Silver Gray Properties Conductivity Max. Temperature Tack-Free Time @ 25C Cure Time @ 25C Cure Time @ 80C Electrical Conductivity Tape Adhesion Flexibility Chemical Resistance Shelflife 0.05-0.15 ohms/sq/mil 212F (100C) 5 Minutes 1 Hour 15 Minutes Excellent Excellent Excellent Very Good 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. 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. AVAILABILITY CW2900 8.5 g (0.3 oz.) Pen 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. TECHNICAL & APPLICATION ASSISTANCE 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. 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. 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. Chemtronics provides a technical hotline to answer your technical and application related questions. The toll free number is: 1-800-TECH-401. NOTE: MANUFACTURED BY: ITW CHEMTRONICS 8125 COBB CENTER DRIVE KENNESAW, GA 30152 1-770-424-4888 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 90C for maximum conductivity, durability and chemical resistance. DISTRIBUTED BY: REV. D (03/01)