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| Usually caused by | Cured by |
| Incorrect powder / water ratio (too much water). | Using correct amount of water (especially important with vacuum investing machines). |
| Work time of investment not used up. | Ensuring the work time is used up and slurry temperature is 20 - 22ºC. |
| Casting the material at too great a pressure (centrifugal casting). | Use the correct spin speed to suit the weight and metal and type of work. |
| Casting problems | |
| Wax pattern problems | |
| Mould rubber problems | |
| Mixing guide | |
| De-wax and burnout cycles | |
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