First-Aid Kits for Circuit Boards ®
22 Parkridge Road
Haverhill, MA 01835 USA
Copyright © CircuitMedic. All rights reserved.
A Circuit Technology Center Company
Operating Instructions

Instruction No. INS86

201-3130 Circuit Track Kit
Description
It's now easier than ever to repair damaged circuits. Circuit Tracks are rectangular shaped conductors made of pure copper.

These rectangular ribbons closely conform to the original conductor dimensions. The replacement Circuit Track is bonded in place using pre-packaged epoxy included in the kit.
Circuit Track Kit Includes

CircuitMedic Part
Abrader
Mild abrasive for removing oxides and contaminates from conductive surfaces.
CircuitMedic Part
Alcohol Swab
Self-saturating Isopropyl alcohol swab. Squeeze handle to release alcohol.
CircuitMedic Part
Circuit Bond Packs
Clear, superior strength epoxy in two-compartment plastic packages
CircuitMedic Part
Circuit Track, .002" x .005"
Rectangular shaped pure copper wire used to repair damaged conductors.
CircuitMedic Part
Circuit Track, .002" x .008"
Rectangular shaped pure copper wire used to repair damaged conductors.
CircuitMedic Part
Circuit Track, .002" x .010"
Rectangular shaped pure copper wire used to repair damaged conductors.
CircuitMedic Part
Circuit Track, .003" x .015"
Rectangular shaped pure copper wire used to repair damaged conductors.
CircuitMedic Part
Circuit Track, .005" x .020"
Rectangular shaped pure copper wire used to repair damaged conductors.
CircuitMedic Part
Circuit Track, .005" x .030"
Rectangular shaped pure copper wire used to repair damaged conductors.
CircuitMedic Part
Cleaning Brushes
Disposable brushes for use with solvents for cleaning and application of coatings.
CircuitMedic Part
Foam Swab
Ideal for absorbing cleaning solvents, and applying color agents and epoxies.
CircuitMedic Part
High Temp Tape Discs
High temperature polyimide tape discs, .50" diameter.
CircuitMedic Part
Knife with #16 Blades
A must-have tool for precise cutting, scraping and trimming.
CircuitMedic Part
Measuring Microscope Pen, 25X
Pocket pen microscope with measuring reticle.
CircuitMedic Part
Micro Probes
Use to dispense a minute amount of adhesive and for micro-positioning of small objects.
CircuitMedic Part
Mixing Picks
Unique mixing sticks have a paddle shape on one and sharp pick on the opposite end.
CircuitMedic Part
Plastic Cup
Small disposable cup for mixing epoxies and holding small items.
CircuitMedic Part
Tweezer, Crossover
Self locking stainless steel tweezers provide hands-free clamping force.
CircuitMedic Part
Tweezer, Point Tip
Fine point tweezers for precision work.
Circuit Bond

Description
Circuit Bond is a clear, low viscosity, superior strength epoxy, precisely measured out into two-compartment plastic packages so it's easy to use and there's no measuring.

Specifications
Packaging2 gram pre-measured packages
Mix ratio4 parts resin to 1 part hardener
ColorClear, transparent
Pot life30 minutes
Cure cycle24 hours at room temperature or 4 hours @ 149°F (65°C)
Viscosity (after mixing)2000 cps
Operating temperature range-67°F to 275°F (-55°C to 135°C)
Hardness88 Shore D
Dielectric strength400 volts/mil
Shelf Life6 months minimum


Circuit Bond Application Instructions
  1. Circuit Bond has a working pot life of 30 minutes. It should not be mixed until ready to use.
  2. To use Circuit Bond, remove the plastic clip separating the resin and hardener. Squeeze back and forth from one half of the package to the other to mix the contents.
  3. Cut a corner off the package and squeeze all the contents into a Plastic Cup. Stir the contents to ensure it is thoroughly mixed.
  4. NOTE: Circuit Bond may contain bubbles from the mixing process. If needed use a vacuum system to remove bubbles.
  5. If desired Color Agent can be mixed in with Circuit Bond to match surface colors.
  6. Apply using a Foam Swab, Micro Probe or Mixing Stick as required.
  7. Cure Circuit Bond for 24 hours at room temperature or 4 hours at 65°C (150°F).

Circuit Tracks

Description
Circuit Tracks are rectangular shaped conductors made of pure copper. These rectangular ribbons closely conform to the original conductor dimensions. The replacement Circuit Track is bonded in place using epoxy.

Circuit Track Repair
  1. Circuit Track
    Figure 1.
    Remove the damaged section of circuit using a knife. Scrape off any solder mask or coating from the ends of the remaining circuits. (See Figure 1.)
  2. Clean the area, then apply a small amount of flux to the ends of the circuits on the circuit board. Tin both ends using solder and a soldering iron.
  3. Circuit Track
    Figure 2.
    Select a Circuit Track to match the width and thickness of the circuit to be replaced and cut a length as needed.
  4. Remove the invisible protective coating from both ends on the Circuit Track by gently abrading the top and bottom surfaces using an Abrader. Removal of the coating is required to ensure a good solder connection to the circuit board.
  5. Circuit Track
    Figure 3.
    Place one end of the Circuit Track in position and hold in place with High Temperature Tape. (See Figure 2.)
  6. Lap solder the taped end of the Circuit Track to the existing circuit using solder, flux and a soldering iron.
  7. Bend the Circuit Track as needed to match the shape of the missing circuit. (See Figure 3)
  8. Circuit Track
    Figure 4.
    Lap solder the remaining end of Circuit Track to the remaining circuit using solder, flux and a soldering iron.
  9. Clean the area, then coat the top and sides of the Circuit Track with epoxy as required.


Available Sizes
Part No. Description
115-5204 Circuit Track, .002" x .004"
115-5205 Circuit Track, .002" x .005"
115-5206 Circuit Track, .002" x .006"
115-5208 Circuit Track, .002" x .008"
115-5210 Circuit Track, .002" x .010"
115-5312 Circuit Track, .003" x .012"
115-5315 Circuit Track, .003" x .015"
115-5520 Circuit Track, .005" x .020"
115-5530 Circuit Track, .005" x .030"


Reference Procedures
For detailed step by step process instructions for the following procedures.
1.0 Foreword
2.0 Basic Procedures
2.2 Cleaning
2.4.2 Coating Replacement, Conformal Coating, Encapsulant
2.7 Epoxy Mixing and Handling
3.0 Base Board Procedures
4.2.1 Conductor Repair, Foil Jumper, Epoxy Method
4.2.2 Conductor Repair, Foil Jumper, Film Adhesive Method