Removal Procedure

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Locate the original attachment point for the defogger terminal (1) on the rear window.

Courtesy of GENERAL MOTORS COMPANY

Courtesy of GENERAL MOTORS COMPANY

Prepare the rear window defogger buss bar (1) surface.

1. Prepare the surface of the rear window defogger buss bar (1) with 500 grit sandpaper, or Emery cloth. It is not necessary to remove all of the original solder, but it should be scuffed sufficiently so that no oxidation is present. Lightly sand the area to prep the defogger buss bar. DO NOT sand through the defogger buss bar.
2. Wipe the prepared rear window defogger buss bar (1) area with Kent Automotive Acrysol or equivalent to remove any residual oil or dirt.
NOTE:

Use care when spraying primer to avoid getting primer on the rear window or surrounding areas.

3. Spray the prepared rear window defogger buss bar (1) area with the Loctite 736 Primer.

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Locate the original defogger terminal (1) and disconnect it from the electrical connector.

Courtesy of GENERAL MOTORS COMPANY

Courtesy of GENERAL MOTORS COMPANY

Prepare the defogger terminal (1) for installation and install the defogger terminal on the defogger buss bar.

1. Prepare the surface of the defogger terminal (1) with 500 grit sandpaper or Emery cloth. Lightly sand the contact points to remove any oxidation and to etch the surface for the adhesive. Use care when sanding the terminal feet not to bend or deform the terminal.
2. Wipe the prepared defogger terminal (1) with Kent Automotive Acrysol or equivalent to remove any residual oil or dirt.
3. Spray the defogger terminal (1) with the Loctite 736 Primer.
NOTE:

Once the adhesive is applied to the defogger terminal (1), the terminal needs to be installed on the rear window defogger bus bar immediately.

4. Apply a small drop of the Loctite 312 to the contact points of the defogger terminal (1).
NOTE:
• If too much Loctite 312 adhesive was applied, the loctite Primer 736 can be reapplied while holding the terminal in place.
• Try to align the contact so that it is positioned with the same orientation as the original terminal.
• The primer on the rear window defogger buss bar (1) should still be wet when the defogger terminal is installed.
5. While the primer is still wet, press the terminal (1) onto the defroster grid and hold for 1 minute. After releasing allow 5 minutes of curing time to form a secure bond.

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Prepare and apply tab bonding epoxy to the top of the terminal (1).

1. Mix the epoxy thoroughly for 45 seconds. There is a 2 minute work time once the epoxy is mixed.
2. Apply the epoxy to completely cover the terminal feet (1) and the prepared area of the defroster grid. Smooth out the epoxy for a good contact between the terminal and defroster grid within the two minute work time.
3. Remove the tape.
NOTE:

Placing the opposite hand under the glass at the terminal (1) while heating the terminal will prevent overheating the eqoxy. Once the glass becomes hot to the touch, remove the heat.

4. Apply light heat between 38 - 65° C (100 - 150° F) do not to exceed 65° C (150° F).
5. Recheck the epoxy in 10 minutes to verify the epoxy had firmed up. If the epoxy remains soft reapply heat while touching the opposite side of the glass. The second application of heat only needs to be brief enough to reach 38° C (100° F).