Let’s get specific.

Dirt, salt, sweat, and automotive fluids act as catalysts for rot. Before storing any rubber item, wash it.

| Application | Primary Risk | Prevention Strategy | | :--- | :--- | :--- | | Automotive Tires | UV Light, Ozone, Road Grime | Apply tire dressing/protectant; store vehicles out of sun; move vehicle periodically if stored long-term. | | Seals & O-Rings | Compression set, Drying | Lubricate with silicone grease before installation; replace immediately if cracking is visible. | | Industrial Hoses | Pressure cycles, Sun exposure | Store coiled in a dark room; inspect for surface cracking before pressurizing. | | Wiper Blades | UV, Friction | Clean rubber with alcohol wipes to remove road film; park in shade or use windshield covers. |

Dry rot (degradation from UV, ozone, heat, and oxygen) makes rubber brittle, cracked, and weak. Below is a concise, practical guide to slow or prevent dry‑rot on rubber parts (tires, hoses, seals, belts, boots, gaskets, inflatable goods).

Before diving into solutions, understand the enemy. Three factors cause dry rot:

"Work" accelerates dry rot. A rubber part that is regularly flexed, stretched, compressed, or heated (like an engine mount) generates internal friction, which creates free radicals—the starting point of cracking. In short: A working rubber part is a dying rubber part unless you intervene.

Weather stripping fails because it is constantly exposed to UV and ozone from outside air.