How To Install Burglar Alarm Window Foil

1. Foil will not stick on wet, sweated or dirty windows. Windows must be tight in  their frames.
    

2. Clean window using a clean lint free cloth and a solvent such as alcohol or benzine.  Store used cloths carefully.
    

3. Mark the windows on the outside of the glass using a foil marker. A foil template should be used as a guide to draw straight lines. The guide line should, ideally, be 3’ from the edge of the frame.
    

4. Attach the self adhesive foil blocks to the clean, preferably warm (60-70 degrees) surface of the glass alongside of, but not touching the frame of the window where the foil will come off the glass.  Be sure the blocks are mounted on the inside of the guide lines so the foil will line up properly.
    

5. It is best to work with the foil above you. Therefore, hang the foil from a foil holder above the window frame.  A foil holder is a reel made from two circles of lexan, placed on either side of the foil will prevent the foil from unraveling and make the process extremely easier.
    

6. Apply foil (adhesive side down) in one continuous strip.  Breaks can be repaired as described in the next section.  Starting at the edge of the foil block, start by running the foil up the foil block ramp where the screw hole is, then onto the window. End at the other foil block the same way. Hold the foil securely against the glass with your thumb.  Stretch a section of foil  using the template line to achieve a straight line.  With a foil squeegee, smooth the foil to the glass. Apply your alarm  warning decal.
    

7. Make a standard turn in the opposite direction and then fold the foil over itself in the direction that the foil is supposed to follow. A small dab of foil protector should be placed on the fold where the two layers of foil come together.  Avoid applying self adhesive foil on cold windows.  Avoid touching the back of the foil. 
    

8. At no time should the foil be permitted to touch metal crossbars or frames holding the windows.  These windows are generally grounded.  A short circuit to ground can make the alarm inoperative.  Most alarm grounds occur at poorly installed foil take off points and crossover areas.
    

9. The most secure method of crossing foil over a frame is stop at a foil block and start at a foil block. Use a small piece of wire to connect one foil block screw to the other.
    

10. After foil is applied,  apply two coats of  foil protector over the foil allowing the first coat to dry before applying the second. Use a ½ inch camel hair brush. 

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     How To Repair Burglar Alarm Window Foil

1. Locate the break or tear in the foil.
2. Use 000 (fine) steel wool, and rub the top coat off the old foil until it turns a dull gray. Do this at least one inch on both sides of the break.
3. Cut a new piece of foil to cover the break, leaving a one inch overlay on both sides
4. Place the new foil (adhesive side down) on top of the old foil.
5. Squeegee the new foil down tight.
6. Use your splicing tool to perforate both sides of the foil patch (this will give the patch continuity).
7. Apply at least two coats of foil protector allowing first coat to dry before applying the second. Apply this using a quality camel hair 1/2 brush.
8. Check your system

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