How To Keep | Rubber From Dry Rotting Work
| 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. |
To stop a problem, you must understand its cause. Rubber dry rot is triggered by four main enemies: how to keep rubber from dry rotting work
This may sound counterintuitive, but rubber lasts longer when it is used. Flexing the rubber helps work the internal oils through the material, keeping the polymer chains flexible. | Cause | Mechanism | |-------|-----------| | |
If your equipment spends all day in the sun, you need a barrier. However, (often found in cheap "tire shine" products). These may look good for a day, but the silicone and petroleum distillates can actually speed up the drying process over time. | | Heat | Accelerates oxidation and volatilizes
Here is the definitive guide to stopping dry rot before it starts.














