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Aditia KT
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Guys, i have furnace from dentsply multimat cube
I use dentsply and shofu porcelain brand
When use dentsply porcelain (ceramco, celtra ceram) everything works perfectly with their firing chart
But on the next day i fire the shofu porcelain (following the shofu firing chart for sure 760-770) and as you can see the result is first image, i have tried at 760, 770 780 and still raw
And today i fire it ad 810-820 (about 40-50 degree above the chart, yes i break the rule with my instinct) and the result is on the 2nd picture
Somebody said i have to calibrate my furnace, but how can the furnace loosing 40-50 degrees in only 1 day ???
What are you thinking guys about this case ?
FYI : celtra ceram and shofu vintage LD have similar firing chart