this post was submitted on 04 Sep 2026
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Chapotraphouse
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Tip for tv remote and game controllers, get a rubber grip if there are any available.
Still plastic!
Rubber comes from a tree doesn't it?
Some does but a lot of it is the side product of cracking naphtha into ethylene.
Wait, is rubber that is made from tree sap still technically a plastic?
synthetic plastics are called plastics because they're like other stuff that we used to call plastic (adjective).
Rubber is still a plastic, it just has a really low glass transition temperature so it stays soft. Even if it comes from sap.
It's a natural plastic, cis-1,4-polyisoprene! It's made of a volatile called isoprene that tons of plants and animals make, including humans. We breathe it out.
Trans-1,4-polyisoprene is a harder natural plastic called gutta-percha and dentists use it to refill root canals because it has really good biocompatibility.
Really? Because I never got the plastic feel from rubber grip.
Surely a high grade silicone would suffice, madame?
Yeah, platinum cure silicone is quite good.
Sometimes there is a small error in the production process and the rubber coating decomposes into sticky goop after a few years.
Ahh I see