3D Systems Figure 4 Standalone User Manual page 162

8/12/22, 10:32 AM
Propylene Carbonate
108-32-7
1.20
116°C (240.8°F)
240°C (464°F)
use neat
Elma Tec Clean A4
Mix
1.13
> 100°C (> 212°F)
not applicable
mix 5 wt% in water
When to Change Cleaning Solvents
You may change out the cleaning solvent in your containers whenever you feel that the solvent is not
doing a good enough job stripping printed parts of uncured resin. However, you may also choose to
have a hydrometer on-hand to measure the speci c gravity of your solvent/resin mixture. The table
below shows what measurements will prompt which actions you can take.
IPA - Hydrometer range 0.700 - 0.810
Clean: do not change solvent if < 0.787
Dirty: use the solvent for "dirty" baths if between 0.787 - 0.797
Discard: Discard solvent according to all government regulations if > 0.797
EZ Rinse C - Hydrometer range 0.795 - 0.910
Clean: do not change solvent if < 0.886
Dirty: use the solvent for "dirty" baths if between 0.886 - 0.903
Discard: Discard solvent according to all government regulations if > 0.903
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