My flux dried up again, silver brazing

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On the rare occasion I need to silver braze a piece of brass, I find the flux has dried up.  I end up buying another one of those cheap packages just to to get the flux. Currently I have 3 rolls and Home Depot no longer carries these packages. The silver braze melting point is somewhere around 1200 degrees.  The flux came in the form of white paste but now it's in the form of...white gravel. Don't know if it's water soluble.Is it possible to re-hydrate this flux? Attached ImagesLast edited by badknot; 03-31-2013 at 09:38 AM."Steel is weak. What is steel compared to the hand that wields it?"- James Earl Jonesmiller 225 w/ 3035spoolmate, Lincoln sq wv 275 w/radiator, hypertherm 600 plasma cutter, other stuff
Reply:I have a couple of similar types and just mix with a little water to restore to pasteLincoln SP-170 MigHypertherm powermax 45Lorch T220 AC/DC TigButters FM 215 synergic MigKemppi 180 adaptive mig RULES ARE FOR THE OBEDIENCE OF FOOLS AND THE  GUIDANCE OF WISE MEN.
Reply:I tried soaking a little in hot water but it doesn't seem to be working."Steel is weak. What is steel compared to the hand that wields it?"- James Earl Jonesmiller 225 w/ 3035spoolmate, Lincoln sq wv 275 w/radiator, hypertherm 600 plasma cutter, other stuff
Reply:Put water in it and mix it up. Add water unitl you get the consiastancy you want.
Reply:Hot water should do the trick.
Reply:Here's a tip: If your going to try hydrating this type of flux in a bowl or the like...make sure you tell your wife what your up to, otherwise she'll likely rinse out the bowl and stick it in the dishwasher like mine did. Oh well, got some dipping flux from my buddy...crises averted."Steel is weak. What is steel compared to the hand that wields it?"- James Earl Jonesmiller 225 w/ 3035spoolmate, Lincoln sq wv 275 w/radiator, hypertherm 600 plasma cutter, other stuff
Reply:I use Sta-Silv in the little jar.  It says right on the back to use water to thin as needed.Dan
Reply:Yep, I have silver solder flux dating back to 1975 and when it dries out just add some water.Ian.