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    WATER TO POWDER RATIO
    MACHINE VACUUM MIXING 36:100
    HAND MIX THEN VACUUM 38:100

    Do not cast with a flask temperature lower than 650¡ÆC
    Slurry temperature 21¡ÆC
    Leave for 90 min to stand before burnout

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  • MACHINE VACUUM MIXING min.
    Weigh out water & powder 0
    Add powder to water
    Mix under vacuum 1
    Stop mixer and scrape blades 0.5
    Mix under vacuum 3.5
    Pour flasks 2
    Vacuum flasks 1
    Total time taken 8
    HAND MIX THEN VACUUM min.
    Weigh out water & powder 0
    Add powder to water
    Mix by hand 1
    Mix with machine 3
    Vacuum mixer bowl 1
    Pour flasks 1
    Vacuum flasks 2
    Total time taken 8
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    Do not remove flasks from furnace to cast until they have been held at casting temperature for a minimum of 1 hour. If held for less than 1 hour, the core of the flasks will be at a much higher temperature than the digital temperature display states, and may result in metal mould reaction.
     
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