Comment on Making PLA 0.15mm smooth, glossy and safer. How well will just resin work?
comfy@lemmy.ml 2 weeks ago layer lines create crevices that are difficult to clean. If you aren’t willing to sand the piece, your resin coat probably won’t change that.
I assumed (without evidence) the resin would tend to level out rather than retain those layer lines, but I suppose the viscosity might affect that and I don’t know how viscous the once I’m looking at is.
finalarbiter@lemmy.dbzer0.com 2 weeks ago
Generally speaking, a coating will conform to the substrate as a function of both viscosity and layer depth. You are right that a more viscous coating is going to be easier to apply and smooth, but it still won’t be particularly smooth unless you did the pre-work to get it there.
That person sanded their print first. There are also some filler-primer paints that will fill the layer line crevices for you, but you still need to sand the surface before applying anything.