Repair 7

Installing Used Auto Glass

Auto glass, or a car windshield, is the front window of a car that protects occupants of a car from the elements. Auto windshields are typically made of tempered glass designed to break into many small pieces without sharp edges. Removing and replacing a windshield is not a difficult job, but it is a job that can be done better by professional installers. Nevertheless, the determined DIYer can follow a few steps.

Instructions

1

Remove the windshield wipers, using a socket wrench. Seal any vents in front of the windshield with masking tape to prevent dirt and debris from falling into the vents. Cover the front seats with old cloth to protect them from debris and dirt. Cover any other vents on the cars dashboard to prevent glass and other particles from getting inside the vents.

2

Unscrew the trim at the base of the windshield with a screwdriver. Pry off any other trim around the windshield. Embed the pointed tip of a windshield removal tool into the rubber seal along the edge of the windshield, but make sure you do not hit the glass. Following the manufacturers instructions on how to safely handle the windshield removal tool, cut the rubber seal at the edge of the windshield by dragging the cutting tool all the way around the windshield several times. Apply enough pressure on the windshield removal tool while cutting to ensure that the cutting tip penetrates deep into the rubber seal.

3

Recline the cars front seats. Lie back in the drivers seat, place a foot against each side of the windshield, and gently push the windshield outward, but do not kick the glass. Have a helper grab the glass to prevent it from falling, and to remove it. Pull away the remaining rubber seal around the windshield frame. Remove old sealant along the edge of the metal frame with a putty knife. Clean the edges of the metal frame with a rag.

4

Prepare the glass by applying primer specially matched to the urethane adhesive on the black band around the perimeter of the windshield. Apply a consistent bead of urethane adhesive around the metal edge of the windshield frame, using a caulk gun. Mount the glass carefully onto the opening and align the top, bottom and sides of the windshield to the metal frame. Press the windshield down gently to allow the bead of adhesive to spread slightly.

5

Let the adhesive set for the recommended time, then reinstall the trim pieces. Note that the adhesive must completely cure before the vehicle can be driven. Replace the windshield wiper, and clean the windshield.