In order to improve its elastic properties
Treated rubber is made to not melt and flow when hot or be brittle when too cold.
Rubber Mallet
it works better because it can be more flexible and moves around easier
It is made into tires and used for most vehicles and other tranportational things.
I own
A bouncy ball is made of either treated leather, or plastics, and other polymers. They were originally made of rubber.
yes! some people are only allergic to rubber (elastic, latex, spandex) which has been bleached or treated with rubber accelerators. Other people are allergic to latex, spandex, tires, pencil erasers, tennis balls, condoms, hairbrushes. They put rubber everywhere! Take it from me, I have a TRUE latex allergy. with a true latex allergy, an exposure leads to at least three weeks of contact dermatitis. For someone with this allergy, that includes spandex in jeans (which is bad because it is treated with lots of the rubber accelerator which is sometimes the real allergy)
To clean stickiness from rubber products, you could:try freezing the item, then gently 'scratching' the sticky area with your fingernail to remove it.turn the item to an unseen area, and try plain denatured alcohol (drug store) on a paper towel or cotton ball --- just a little ! Then, use a cleaner made for rubber products to keep the rubber supple (softened).
No point in asking the question until you have approval.
many things some examples are tempered steel, plastics of almost all kinds, rubber, rock(to a certain degree), and many other treated metals
list of items made of rubber
Rubber roofing should be treated occasionally to protect it from the sun's damaging UV rays. The roof should be carefully cleaned with appropriate cleaners to remove any mold, mildew and that chalky residue that starts to develop over time. A mop and a soft bristle broom can be used to clean the surface without damaging it. Once the surface is dry, it should be treated with a UV protectant. This chemical is mopped on and allowed to dry on the surface. Application is relatively easy and it will allow rubber roofing to stay soft and supple, despite the sun beating down on it.