How To Keep Rubber From Dry Rotting ((hot)) File

Take 15 minutes this weekend to inspect and treat your rubber items. Future you—with crack-free tires, working seals, and pliable hoses—will thank you.

Dry rot is the silent killer of rubber. You’ve seen it: the cracked sidewall of a spare tire, the brittle seal on a refrigerator door, or the crumbling handle on a pair of pliers. Technically, "dry rot" is a misnomer—it’s not a fungus. It’s oxidation . When rubber is exposed to oxygen, ozone, UV light, and heat over time, its polymer chains break down, causing it to harden, shrink, and crack. how to keep rubber from dry rotting