submitted 1 year ago by FabulousAardvark@lemmy.ml to c/3dprinting@lemmy.ml

10 comments fedilink hide all child comments

So, yes, I know that due to layer lines etc, FDM (PLA) printing isn't safe for food, however is there a way of making it safe? Essentially I want to create a draw insert for cutlery, so can I print it, the coat it in something to make it food safe?

you are viewing a single comment's thread
view the rest of the comments

[-] MxRemy@lemmy.one 2 points 1 year ago

There are definitely a few potential options, I think! Mostly experimental ones though, so no guarantees that they actually work lol. For example:

Sinter it. Basically print at 100% infill, completely pack it in salt/sand/etc, and heat it in a kiln/oven/etc. The plastic will (hopefully) remelt and solidify without all the pockets inside.
Seal it with something foodsafe and nonpermeable, some kind of varnish or lacquer, even electroplating maybe. The pockets will still be in there but nothing will be able to get into them.
Use the 3d print for lost PLA casting instead, essentially replacing it with something else like metal.

this post was submitted on 03 Jul 2023

7 points (88.9% liked)

3D Printing

4296 readers

11 users here now

For everyhting 3D printing related.

Please be excellent to each other :)

Icon by Freepik, Banner photo by Thiago Medeiros Araujo

founded 3 years ago

MODERATORS

3dnudel@lemmy.ml