Not all rubber is the same. Here is how to handle the most common problem items:
Extreme temperatures are the enemy.
Heat speeds up chemical reactions. For every 18°F (10°C) increase in temperature, the rate of oxidation doubles. An attic that hits 120°F will kill rubber in one summer. how to keep rubber from dry rotting work
Dirt, salt, sweat, and automotive fluids act as catalysts for rot. Before storing any rubber item, wash it. Not all rubber is the same
Rubber does not rot in a vacuum; it rots because of its environment. The "Four Enemies" of rubber are: how to keep rubber from dry rotting work