Even with perfect care, rubber has a lifespan:

Dry Rot in Tires: Causes, Prevention & When to Replace - TrailersPlus

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 . 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.

: For pneumatic rubber (like tires), maintaining the correct PSI reduces internal friction and heat generation, which otherwise accelerates brittle-point reaching. TireMart.com +3 Recommended Maintenance Products For active protection and restoration of rubber seals and components, reviewers and manufacturers recommend the following: 303 Aerospace Protectant ₹2,640.00 amazon.in & more 4.8 (2.6K) Frequently cited by experts for providing high-level UV protection without petroleum distillates. SONAX Rubber ₹2,615.00 desertcart.in & more 4.7 (800) A dedicated seal conditioner designed to keep weather stripping supple and prevent sticking. ATP 205 Re-Seal ₹2,227.87

Most "rubber conditioners" sold in auto stores are short-term cosmetics. The real secret is environmental control. A $5 can of silicone grease and a $10 opaque tote will save you hundreds in replacement parts.