Trial #1
To evaluate the effectiveness of five TCE alternatives at removing lubricants from aluminum alloys.
Preweighed aluminum coupons were tested for each cleaner. Coupons were soiled with Blasocut 2000 Universal Lubricant (CAS: 64742-52-5; 61790-44-1; 68608-26-4; 63449-39-8; 107-41-5; 770-35-4) using a swab to cover the bottom third of the substrate and dirty weights were recorded. Coupons were immersed, three at a time, in a beaker with 200ml of the chosen cleaner at room temperature (68 F) for five minutes. Visual observations were taken during this time, and final weights were recorded after cleaning. This process was repeated for each cleaner.
| Cleaner
|
Initial wt.
|
Final wt.
|
% Removed
|
Average % Removed
|
| Fluosolv CX
|
|
|
|
|
|
|
0.0213
|
0.006
|
71.83
|
64.69
|
|
|
0.0755
|
0.0297
|
60.66
|
|
|
|
0.0453
|
0.0174
|
61.59
|
|
| Fluosolv NC
|
|
|
|
|
|
|
0.1095
|
0.0013
|
98.81
|
86.73
|
|
|
0.1015
|
0
|
100
|
|
|
|
0.3046
|
0.1176
|
61.39
|
|
| Solstice PF
|
|
|
|
|
|
|
0.0914
|
0.0022
|
97.59
|
97.39
|
|
|
0.1643
|
0.0026
|
98.42
|
|
|
|
0.1012
|
0.0039
|
96.15
|
|
| Solstice PF-2A
|
|
|
|
|
|
|
0.1095
|
0.0012
|
98.9
|
98.15
|
|
|
0.0493
|
0.0013
|
97.36
|
|
|
|
0.066
|
0.0012
|
98.18
|
|
| Vertrel Sion
|
|
|
|
|
|
|
0.0226
|
-0.0003
|
101.33
|
99.94
|
|
|
0.0978
|
-0.0014
|
101.43
|
|
|
|
0.0647
|
0.0019
|
97.06
|
|
Blasocut took two to three minutes before it visually came off the coupon in each drop in solvent. Fluosolv CX had a thin layer of residue on each of the coupons.
Four of the five drop-in solvents were effective at removing Blasocut 2000 Universal from aluminum. Next steps is repeating procedure on Oak 7a lubricant.
No relation