This post has exactly zero relevance to my professional career or personal projects, and this is exactly the type of esoteric content I love about HN!

Oil painter here, this is news to me and if it doesn't dissolve in gamsol this is EXACTLY what I've been looking for for about 2 years.

Yes, but that esoteric nature is the charm of HN at its best.

This is unusual as posts go, but it's not totally unreasonable and even though I wouldn't have an immediate use, it's fascinating, leads to further exploration (like another commenter mentioning the inks) and knowledge gets filed away.

I try to remember posts like this when people are less positive about HN! :-)

I'm especially curious about the high upvote count, considering the Wikipedia article as well as the substance in general is not that interesting IMHO.

I use paraloid all the time, a bit surprised to see it posted here but I’ll support it.

Not many, but there are a few amateur and professional musicians here benefitting from better piano hammers made possible by Paraloid B-72!

Note: I thought this was about Polaroid, not Paraloid, at first!

The issue is that it does yellow but after 25 to 50 years. The challange is that it is very difficult to reverse.

On the restoration of my house I allow its use on very specific cases. It very useful for example in strengthening wood that has rotten. Sometimes Paraloid is the only thing that can be used, but it needs to be used with care.

I've done some DIY piano maintenance and I saw what was presumably this available to firm up the hammers. My piano needs them softened, though.

They should make non-yellowing transparent phone cases out of this stuff.