Cleaning Parts Using an Ultrasonic Cleaner

NOTE: Follow all safety precautions and guidelines set forth in the User Guide for the ultrasonic cleaner you have purchased.

Always wear 100% nitrile gloves whenever handling an uncured printed part, as well as when handling any solvent used to clean such parts.

Important Notice for Ortho IBT Resin

If you are running Ortho IBT resin, you MUST use Ethanol as your cleaning solvent. Do not use IPA.

Cleaning Procedure

While the User Guide for your ultrasonic cleaner will provide specific-use instructions, the steps outlined below describe how 3D Systems recommends cleaning build parts via an ultrasonic cleaner. 

  1. Label your steel or glass containers as "1st Bath" and "2nd Bath."
  1. Wearing nitrile gloves, place the printed part inside 1st Bath container. Pour >90% alcohol solvent into the container until you completely submerge the printed part. Used >90% alcohol solvent may be used for this first bath, unless it is completely saturated.

    NOTE: The same solvent may be used in the first bath to clean several printed parts. It will, however, become saturated over time and will no longer be effective at stripping uncured resin from printed parts. You must visually gauge this effectiveness each time you clean a part. If after washing, the printed part still has large amounts of uncured resin on it, you will need to discard the old solvent according to all local, state, and federal regulations. Then use new solvent for your next cleaning job.

  1.  Place 1st Bath container inside the ultrasonic cleaner.

CAUTION: Ensure that your ultrasonic cleaner is properly rated to use flammable solvents. Failure to do so could present a fire hazard.

  1. Follow the instructions in your ultrasonic cleaner's User Guide to power it on and begin cleaning. For this first bath, run the ultrasonic cleaner for 3 minutes.
  1. After the cleaning cycle has finished, remove the printed part from the ultrasonic cleaner using nitrile gloves. You may wish to use shop air or an air compressor to dry the part in between cleanings, as this is an effective method for getting one solvent off the part before cleaning it with another.
  1. For 2nd Bath container, follow Steps 2-5 once more. But the >90% alcohol solvent must be completely clean for the second bath (no other parts or printer components should have been cleaned with it). This time, run the ultrasonic cleaner for two minutes. After finishing Step 5 with 2nd Bath container, the part is ready for drying and post-curing in the LC-3DPrint Box.


CAUTION: Cleaning printed parts for any longer time than prescribed in this manual risks creating defects in the part.