How biodegradable is PLA exactly?

I know PLA is biodegradable, and quite fast under specific, controled circumstances, but how about normal use? Can a part hold up for years or decades, or does it get soft and sticky after a few months or years? I do not particularly like the glossy appearance of PC, and would like to continue using PLA and PLACF.

Head will effect it, also if it’s going to be outside make sure you paint it to keep the uv rays off. Petg probably would hold up better outside I would still suggest painting if it’s going to be in the sun

I have a rain cover on my Ring doorbel made out of black PLA.

It hads been there for 4 years now out in the elements. So it catches rain, direct sunlight, cold, heat… everything!

It has not changed since the day I put it up there.

So I wouldn’t worry too much your products will auto degrade anytime soon…

It was tested by CNC kitchen for example. Maybe you Check out his Video

it’s only indoor use, room temperature.

Thanks, that helps, sure seems enough proof.

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I whish the doorbell was made from PLA…

You can likely print it yourself and replace the case.

No I don’t like the Ring doorbell anyway. It will be replaced very soon.