Cleaning Printed Parts

Printed parts must be cleaned with solvents to ensure safer handling, dimensional accuracy, and preparation for post-curing. This section will describe three methods that have been proven to work best for Figure 4 part cleaning: 1. Sonication in IPA; 2. Non-flammable Sonication; and, 3. Manual Cleaning.

Necessary Cleaning Materials Chart

Equipment Sonication in IPA Non-flammable Sonication Manual Cleaning
At least 1 ultrasonic unit for wash - this unit should be large enough to hold your cleaning containers (see below) yes, explosion-proof unit required yes no
At least 2 containers for part baths - these should be large enough to contain the parts you intend to print. These containers can be stainless steel or glass. Plastic is not recommended for ultrasonication. yes yes yes
Supply of solvent(s) yes yes yes
Digital Timer yes yes yes
Vented wash/squirt bottle for IPA yes yes yes
Jar to store cleaning brushes yes yes yes
Soft or medium bristle brushes - 1 brush included with printer yes yes yes
Compressed air with air blow gun with chip guard yes yes yes
Hydrometer with range or 0.70-0.81 for IPA yes no yes
Hydrometer with range or 0.795-0.910 for EZ Rinse C yes no no
Hydrometer with range or 1.00-1.22 for propylene carbonate no yes no
500ml graduated cylinder yes yes yes
Optical inspection tool, such as a microscope yes yes yes
Forced-air oven (optional for part drying) yes yes yes

WARNING: IPA IS A FLAMMABLE Liquid with flammable Vapors. KEEP AWAY FROM HEAT, SPARK AND OPEN FLAMES. USE WITH ADEQUATE VENTILATION. STORE AT 20-30ºC (68-86°F). DO NOT TAKE INTERNALLY. AVOID PROLONGED OR REPEATED BREATHING OF MIST OR VAPOR. liquid and vapor CAUSE IRRITATION TO EYES AND RESPIRATORY TRACT. liquid and vapor AFFECT CENTRAL NERVOUS SYSTEM. MAY BE HARMFUL IF ABSORBED THROUGH SKIN. MAY CAUSE IRRITATION TO SKIN.

CAUTION: Consult SDS for each solvent and material type prior to use for additional personal protective equipment.  

CAUTION: solvents and solvent-related trash must be disposed of according to all government regulations.

always wear gloves when cleaning build parts.