sochin wrote:Mikkopee wrote:Here is what problems we have when casting SWP.
Might be a cleaning issue and/or reaction with the investment. If I over clean the SWP models they can break down. Perhaps check you models after cleaning if you are not already to see if that is an issue.
I also wonder if leaving invested flasks stand for too long can lead to the resin sweating inside the flask and giving surface and burnout issues. No proof of this but that is why I try to only let them stand for about 3 hours.
That said....we all only have so much time so if you have another resin working for you then stick to it. Now is so much better than when we had to make one of the few resins we had to choose from work. Today you just use what works the easiest for you. Someone else might have other ideas.
I only use IPA less than 2min after printig. IPA and blow dry. No water. Then UV oven 10min/side. Flask sits 2-3h before starting to heat.
B9 I use 1min IPA, 1min boiling soapwater, blow dry. Repeat 3 times. Then 20min boiling water and let cool. Then I cut supports off and UV oven 10min/side.
Takes lot of time and work but castings are flawless