How To Keep Rubber From Dry Rotting Work ((free))

The question "how to keep rubber from dry rotting" has a clear answer:

| Myth | Truth | |------|-------| | "Heat shrink wrap preserves rubber perfectly." | Heat shrink requires high heat to apply, which damages rubber before storage. Use stretch wrap instead. | | "Baby oil keeps rubber soft." | Baby oil is mineral oil (petroleum). It dissolves most synthetic rubbers. | | "Freezing rubber stops aging." | Freezing makes rubber stiff. Upon thawing, condensation forms inside the rubber matrix, accelerating hydrolysis. | | "Spray paint protects rubber from UV." | Paint solvents attack rubber immediately. Only use rubber-specific coatings. | | "Dry rot means the rubber is dehydrated. Soak it in water." | Water causes rubber to swell unevenly and promotes mildew. It does not restore plasticizers. |

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What (e.g., extreme heat, sun, chemical exposure) does your gear face daily?

Contrary to the name, dry rot isn't a fungus. It is the chemical breakdown of the oils and polymers within the rubber caused by environmental stressors. Essentially, the rubber is "aging" prematurely. The question "how to keep rubber from dry

Store rubber in a basement, cool garage, or covered shed.

| Cause | Mechanism | |-------|-----------| | | Attacks double bonds in rubber (especially natural rubber, nitrile, SBR). Causes surface cracks perpendicular to stress. | | UV Light | Breaks carbon-carbon bonds, generates free radicals, leads to surface chalking and cracking. | | Heat | Accelerates oxidation and volatilizes protective plasticizers (Arrhenius behavior: rate ~doubles per 10°C rise). | | Humidity extremes | High humidity can leach antioxidants; low humidity accelerates plasticizer loss. | | Stretching/Stress | Opens microscopic cracks for ozone to penetrate deeper. | It dissolves most synthetic rubbers

Do not store rubber in a vent-free attic or a metal shed in summer. Those spaces routinely hit 140°F, which destroys rubber in one season.