Over Etching

over-etchingOver etching presents as a relatively smooth surface (like a fine sandpaper) that appears on the surface of the casting.

The causes of this defect are evident in the other portion of the process. To cure these causes, R&R recommends taking the following actions.



Area

Cause

Cure

Wax

 

 

Shell

 

 

Metal

 

 

Other

  1. The pattern washing agent is too aggressive, the immersion time is too long, or poor rinsing.
  1. Check on pattern washing practices.

Return to Defect Analysis