PVB smoothing
Has anyone used Prusament PVB and successfully smoothed a model (not using a Polysher)? I sprayed IPA using a mist/spray bottle, and then enclosed the model in an airtight container overnight. This did indeed result in a smooth model but left it in a very soft state - which it is still in almost a week later! At this rate it could take months to dry out . . .
Does anyone else have experience of using PVB/IPA?
RE: PVB smoothing
Am I the only one who has tried this stuff? It is still like fresh chewing gum a week after the IPA treatment. Does it ever go back to a rigid state or does it always stay like this?
RE: PVB smoothing
I haven't tried the PVB but your experience sounds similar to when I first had a go at acetone smoothing.
I used the jar and paper towel method, all seemed to be going well until I got distracted and left it in there for a couple of hours. It was super smooth and exceptionally squishy. Would have been ideal if I wanted to drape it over a form to take a new shape. It eventually went harder but it took a month or so and never returned to the same rigidity as it came off the printer.
I'd have an experiment with the jar method and do it in several steps - short bursts and leave to harden in-between each go.
RE: PVB smoothing
Old thread but I only recently printed my first objects with PVB, some vases and the inside of a Stargate. I *love* this stuff. With 0.8mm nozzle and vase mode it looks like glass after IPA treatment. I didn't do the vapor method. I simply applied IPA with a brush, then let it dry for 15 or 20 minutes, with 5 or 6 repetition. It did get a bit squishy and needed three or four days to solidify but it looks gorgeous.
Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...