Plug in and turn on an electric fan in your workspace to dissipate adhesive fumes, which can be noxious and potentially dangerous if inhaled for a prolonged period.
Remove the old door seal, which pulls off under pressure. On some appliances, such as refrigerators, you may need to extract the screws in the seal frame with a screwdriver to pull off the seal completely. A quick inspection should help you determine how the seal is attached.
Pour rubbing alcohol onto a folded rag to apply on the old adhesive. Rub the alcohol over the adhesive to loosen and dissolve the dried material.
Scrape away any remaining adhesive with the flat edge of a plastic putty knife. Use a plastic tool to avoid scraping the door surface.
Squeeze a thin bead of adhesive from the tube around the inside of the new seal along the groove or channel where the seal fits with the door. Do not apply too much adhesive; stay within the groove or channel or you could end up gluing your door shut.
Attach the seal to the door in the location of the original seal, working clockwise around the seal to press it in place.
Shut the door to place pressure on the new seal for a strong bond with the adhesive. Leave the door shut for the adhesive to dry. The length of time depends on the adhesive used for your particular project, although 8 to 12 hours is not uncommon. Check the product labeling on the adhesive tube for specifics.