Rubber Window seals on a vehicle generally gets little consideration, at least until they start to crack and break. They’re important for keeping wind and water out of your interior, so if there’s an issue, they need to be changed. It might seem daunting, but it’s actually quite an easy job, although it does needs patience to do it correctly.
TAKE OUT OLD SEAL
Begin by opening the vehicle door as this will give you more freedom of movement around the window. find the spot on the seals where there’s damage and gently ease the head using a flat head under it. Very carefully, move the screwdriver along to separate the rubber from the metal. Once you’ve loosen enough of it, you should now be able to peel off the trim. It might break as you do this if it’s especially brittle; in this situation, begin again with the screwdriver until you’ve removed all the seals.
There will be left of particles of rubber and adhesive where you’ve removed the seals. Before fixing in new ones, you’ll need to clean all this off. Begin by applying solvent to get rid of most of this debris, and then rub hard with a rag to take off as much as possible.
Once the cleaned area is dried, use automotive cleaner for anything that remains, scrubbing all the way down to the metal. Dry afterward with paper towels.
Now you want to sand the metal so the new adhesive will stick. Be very careful here. Use very fine-grit sandpaper, rubbing in circles, but don’t sand the area beyond where the seals will be fixed or you’ll ruin the appearance of your car. Once you’ve completed this task, dampen a paper towel and wash off all the dust thoroughly.
APPLY NEW ADHESIVE
You’ll have to put down weather stripping adhesive in order for the rubber seals to remain in position. First, however, you will have to cut them to size and dry fit them to the window. Only after this can you apply your glue. Put a thin layer where the seals will sit on the metal, and while it starts to dry, apply a bead to the inside of the rubber itself.
PUT NEW SEALS IN PLACE
Allow the weather stripping adhesive about 10 minutes to become properly tacky, and then start to fit the new window seals in place. Go slowly, pushing down firmly as you go. This will ensure a firm bond and also send out any air trapped between the rubber and the metal. Squeeze along as you move.
Once your new seal is firmly in place, go around once more, pressing down on the rubber. This will not only take out the remainder of the air, but also ensure that the seal between rubber and metal is tight and remains that way.