A can of WD-40 with a straw
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The Potential Drawback Of Using WD-40 To Lubricate A Garage Door
It's recommended that you lubricate the moving parts of your garage door twice a year, but using WD-40 for the job is, beyond any doubt, not the way to go.
WD-40 works well
as a lubricant for squeaky hinges, handles, locks, and other creaking household items, but for garage doors, you’ll need something specifically made
for them.
WD-40 can actually do more harm than good to your garage door. Garage doors have a powder-coat finish that the WD-40 formula may damage.
Not only that, but WD-40 softens plastic, nylon, and rubber parts, so if your garage model features nylon rollers, they can get irreversibly damaged.
Instead, you can
use the 3-in-1 Professional Garage Door Lubricant that Amazon sells for $7.99 and comes in an 11-oz. can with a straw. It dries fast and deters rust
and corrosion.