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HELP! Valplast !!
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<blockquote data-quote="deleon24" data-source="post: 24548" data-attributes="member: 2269"><p>The reason I soak the model flasks for 10 min is becuase the stone gets hydrated and when you inject the material u will hear a hizzing noise of the water its water vaporating from the stone not to worry then when u break it out u will notice a clean separation between the stone and the material I guess the hydration prevents the hot material form soaking up stone, also they come out vary less dull looking and more transparant. I use APS Acrylic & Plaster Separator from DVA I put it on after I soak the models in warm close to hot water not boiling hot water, let it set about 3 min and inject while the flask are still warm I know Valplast says cold flasks but I ve never had succes with it cold and I inject Duraflex, TCS, Luster-Flex, and Flexite and they all state warm flasks so I dont know why Valplast says cold. The use off slurry water has no effect on verticle dimension atleast not for me but it could be becuase I presure pot it (with out water in the pot of course). I also when flasking dentures here is another tip after you pour the second half of the flask put under the big boy press and tighten it, and watch no change what so ever in vertical dimension when u put the dentures back on the flask, again u prevent expancion of the flask to open during stone setting. And believe me its not much work at all !! Since the use of slurry water in ur investing u cut so much time and since u soak the flasks in water the separtion from the cast and the cleaness of the appliance finishing and polishing is cut by half try it and you'll see if sceptical do a trial apliance hey it works wonders for me.</p></blockquote><p></p>
[QUOTE="deleon24, post: 24548, member: 2269"] The reason I soak the model flasks for 10 min is becuase the stone gets hydrated and when you inject the material u will hear a hizzing noise of the water its water vaporating from the stone not to worry then when u break it out u will notice a clean separation between the stone and the material I guess the hydration prevents the hot material form soaking up stone, also they come out vary less dull looking and more transparant. I use APS Acrylic & Plaster Separator from DVA I put it on after I soak the models in warm close to hot water not boiling hot water, let it set about 3 min and inject while the flask are still warm I know Valplast says cold flasks but I ve never had succes with it cold and I inject Duraflex, TCS, Luster-Flex, and Flexite and they all state warm flasks so I dont know why Valplast says cold. The use off slurry water has no effect on verticle dimension atleast not for me but it could be becuase I presure pot it (with out water in the pot of course). I also when flasking dentures here is another tip after you pour the second half of the flask put under the big boy press and tighten it, and watch no change what so ever in vertical dimension when u put the dentures back on the flask, again u prevent expancion of the flask to open during stone setting. And believe me its not much work at all !! Since the use of slurry water in ur investing u cut so much time and since u soak the flasks in water the separtion from the cast and the cleaness of the appliance finishing and polishing is cut by half try it and you'll see if sceptical do a trial apliance hey it works wonders for me. [/QUOTE]
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