How to Repair a Plastic Fridge Liner
- 1). Take all of the food out of the refrigerator. It is best to remove everything from all shelves and bins, even if not located near the crack, for food safety and health reasons.
- 2). Unplug the refrigerator and remove any shelving that blocks the area needing repair.
- 3). Have a bright light handy, such as a trouble light, to illuminate the inside of the fridge. Since it is unplugged, the electrical components will not work, and no light can hinder the outcome of your repair.
- 4). Drill two small holes in the liner, one on each end of the crack. This will prevent the plastic from cracking further. A larger, longer crack may force you to have to replace the liner, and that is the last option you want to have.
- 5). Soak a soft cloth with rubbing alcohol and wipe down the entire plastic liner. Focus mostly on the area where you drilled your holes, so that you can wipe away any lingering plastic pieces and buildup. Allow the surface to air-dry for roughly 30 minutes before proceeding.
- 6). Apply a thin layer of silicone sealant to the cracked areas. Use the putty knife to spread it around and fill the crack entirely. Make sure you use food-grade silicone, since it will not cause any harmful effects on the food you keep in the refrigerator.
- 7). Allow roughly two or three hours for the sealant to harden and then replace the shelving and other components of the fridge. Put all of the food back inside, and remember to plug it back in.
Source...