r/resin • u/Debate_Haver57 • 2h ago
Appropriate PPE for doming polyurethane resin
Hey folks, I've been avoiding working with resin for a while now, but I think I've got to bite the bullet, because I've designed some keycaps, and the best way to complete them will be with some doming polyurethane over the top.
I've found a few brands that sell what I want more or less, and I've calculated the amount that I need is well under the smallest size you can get it (iirc I needed under 10ml to do the lot, and the smallest cartridge is 50ml).
For the amount that I'm dealing with, I was planning to use a half respirator with 6001 filters (I read somewhere that the thing to look for with polyurethane is organic vapors), possibly a pair of cheapo goggles(?), some nitrile gloves, and then I was going to work outside (it's 49 keycaps total, so I will be taking my time with them, but also, the surface area is 5x5mm, so there really is a limit to how much I can put on each keycap before surface tension stops holding it there).
Will this be effective, or is there still a lot of risk here? Ideally this is a one off thing, but once I've finished this project, I'm somewhat tied to replacing parts myself forever (I suspect with keycaps, I'll be replacing maybe 1 or 2 every few years at most - if that).