29 STRATASYS / THE 3D PRINTING SOLUTIONS COMPANY
Removing Support Material with Sodium Hydroxide
To remove thin layers of support material and to give the model a smooth, clean finish:
1. Put on protective gloves.
2. Soak the model in a 2-percent aqueous solution of caustic soda (NaOH).
(typically between half-an-hour and several hours, depending on how delicate it is and how much support
material needs to be removed).
3. Rinse the model again thoroughly using the WaterJet.
Cleaning Models—Post Process
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