Lifting presents as a wobbly leather-like surface and is typically the second stage of a buckling defect. This indicates that the sides of the pyramid cracked and prewet and/or slurry trapped in the shell has seeped through the cracks and filled the shell cavity.
Struggling with a specific casting defect or just need general technical support?
Email our technical team at: Technical@ransom-randolph.com.
The causes of this defect are evident in the wax and shell portions of the process. To cure these causes, R&R recommends taking the following actions.