Paraloid B-72

Oh I've used this personally! I had various surgeries that removed various amounts of bone from me and I asked to keep the bones, which they allowed! I wanted to preserve them in case I wanted to make some esoteric jewelry and it lead to paraloid B-72.

It's quite wonderful. I dissolve the paraloid B-72 in acetone (1 part B-72, 8 parts acetone), then soak the bone in the acetone for about an hour, let the bones dry, and then suddenly they're solid and strong. You can adjust how much acetone you use for how thin/thick you want the fluid. Bones are porus so I opted for a thinner solution and it worked great. It was also really cheap.

Heh, I upvoted this a few days ago and it must've gotten on the second-chance queue.

Links to obsure but interesting Wikipedia articles are some of my favorite HN posts.

What we really need is a wipe on self leveling version. Finishing guitars is hard!

Could this be used to 3D print supports ? For now, the only thermoplastic I know of that can be used to this effect is HIPS in conjunction with d-limonene.

This is the most esoteric post I've seen on HN in a while.

How many museum curators who need non-yellowing flexible thermoplastic are there on here?

Huh. So it's a stronger, harder, less brittle, clear wood glue you can dissolve with acetone. Neat!

How does its strength compare to MMA structural adhesives? What materials is it compatible with?

Am I the only one that read it as Polaroid ;) ?

Thanks for Sharing this information.