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Should I get a shell blaster?
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<blockquote data-quote="Brandon Patrick" data-source="post: 286359" data-attributes="member: 20621"><p>A shell blaster is certainly a nice tool to have, but its possible that a few small changes could make it an unnecessary expense. I've used a shell blaster in the past and it can come in handy for other things, such as cleaning the vacuum mixing bowls when you let the stone set up in them (It's happened to all of us right? lol). I currently don't use one though. I don't use putty either, but I invest in 3 layers. It takes a few more minutes of waiting for stone to set, but I don't mind. It's important to not boil out too long 8-10 mins max I would say, or else the wax soaks into and seals the cast from the separator. Use clean boiling water (and not the dirty wax water in the tank) to rinse residual wax from the investment halves. I also do 2 coats of separator on each. It's a possibility that if the flasks are still too hot from boil-out, that some separators can evaporate before they've fully soaked into the cast. For the most part I have very little stone to clean (maybe in some cervical and interproximal areas) and unless there are tight undercuts I can usually recover the master model as well. You may have already follow some of these procedures, but if not I hope it helps!</p></blockquote><p></p>
[QUOTE="Brandon Patrick, post: 286359, member: 20621"] A shell blaster is certainly a nice tool to have, but its possible that a few small changes could make it an unnecessary expense. I've used a shell blaster in the past and it can come in handy for other things, such as cleaning the vacuum mixing bowls when you let the stone set up in them (It's happened to all of us right? lol). I currently don't use one though. I don't use putty either, but I invest in 3 layers. It takes a few more minutes of waiting for stone to set, but I don't mind. It's important to not boil out too long 8-10 mins max I would say, or else the wax soaks into and seals the cast from the separator. Use clean boiling water (and not the dirty wax water in the tank) to rinse residual wax from the investment halves. I also do 2 coats of separator on each. It's a possibility that if the flasks are still too hot from boil-out, that some separators can evaporate before they've fully soaked into the cast. For the most part I have very little stone to clean (maybe in some cervical and interproximal areas) and unless there are tight undercuts I can usually recover the master model as well. You may have already follow some of these procedures, but if not I hope it helps! [/QUOTE]
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Should I get a shell blaster?
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