According to this quick research, rubber is okay if exposed to sunlight. Although I don't store anything garden equipment or tools outside in the sun. I'm really tired of buying them over and over again!
I did not know about silicone rubber, though. Interesting.
(I have no connection to either of these websites, it's just info.)
https://www.timcorubber.com › blog › archive › what-is-the-best-rubber-for-uv-resistance
What is the Best Rubber for UV Resistance? - Timco Rubber
Apr 3, 2024This versatile, cost-effective rubber material is known for its durability, which includes excellent weathering resistance, including an ability to withstand regular exposure to sunlight. Silicone Silicone rubber is one of the most popular materials for high temperature environments, and it can help you beat more than just heat.
siliconemakers.com
https://siliconemakers.com › uv-resistant-silicone-rubber-products-long-lasting-performance-under-the-sun
UV Resistant Silicone Rubber Products: Long-Lasting Performance Under ...
The UV-resistant silicone Rubber is a great invention, making life easier by utilizing its ultraviolet-resistance elements