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01.
Accurately measure the amount of gypsum and water to be mixed.
02.
The mixing case must be clean and if possible, its size should be appropriate to the amount of gypsum to be used. 03.
Make sure to mix them after fixing them for one or two minutes after putting water on the gypsum. 04.
To get an even slurry, use mixing wings that have a high mixing efficiency and a mixing machine that is suitable to the mixing case. 05.
For the mixing duration, please follow the instructions on the test report . 06.
When using several mixing cases, use them appropriately to get an even consistency in a cast. 07. When casting complex shapes, particularly concave shapes, low-expansion gypsum should be used. In the case of convex shapes, use gypsum after transcription. In addition, if part of the cast is concave, cast the part separately. This is necessary since the amount of expansion at the time of casting-out is about 50%.
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