Trial #1
To evaluate the effectiveness of cleaners/solvents for the removal of grease on aluminum substrate for 30 minutes unheated immersion.
Four of eight cleaning products were diluted with tap water at room temperature to vendor recommended concentration. Three cleaning products were used at the recommended 100% dilution and the solvent option was also used at 100% for industrial testing; all cleaners and solutions were measured for 200 mL. Pre-weighed aluminum coupons were coated over 1/3 of the surface with grease that has been provided by the company by using a metal spatula; three coupons were used for each cleaner/solvent. They were allowed a 24-hour dry time at room temperature; their dirty weights were recorded. The coupons were immersed in the cleaners/solvents at room temperature for 30 minutes then were taken out and placed on trays with paper towels; they were left to dry for 24 hours. Final weights and observations were recorded and evaluated.
Cleaners/Solvents used:
Liquinox (1%)
Dimethyl Glutarate (100%)
Mirachem (20%)
Metalnox (100%)
Micro 90 (1%)
Smart Solve (100%)
SC-Aircraft (5%)
Ozzy Juice 3 (100%)
The coupons were still wet resulting in higher clean weights. No grease was removed from the coupon evaluated by visual observation.
| Solvent/Cleaner
|
initial weight of soil
|
final weight of soil
|
% Removal
|
Average
|
| Liquinox 1%
|
0.5365
|
0.5234
|
2.44
|
1.47
|
| 0.6479
|
0.6426
|
0.82
|
| 0.6797
|
0.6719
|
1.15
|
| Dimethyl Glutarate 100%
|
0.4352
|
0.4548
|
-4.50
|
-4.41
|
| 0.758
|
0.8017
|
-5.77
|
| 0.5747
|
0.5917
|
-2.96
|
| Mirachem 20%
|
0.8628
|
0.8699
|
-0.82
|
-0.58
|
| 0.9671
|
0.973
|
-0.61
|
| 0.6095
|
0.6113
|
-0.30
|
| Metalnox 100%
|
0.3461
|
0.5268
|
-52.21
|
-40.78
|
| 0.8741
|
1.1302
|
-29.30
|
| 0.4841
|
0.6818
|
-40.84
|
| Micro 90 1%
|
0.6876
|
0.6699
|
2.57
|
2.40
|
| 0.7716
|
0.7701
|
0.19
|
| 0.6219
|
0.5944
|
4.42
|
| Smart Solve 100%
|
1.0825
|
1.1647
|
-7.59
|
-15.30
|
| 0.552
|
0.6869
|
-24.44
|
| 0.7421
|
0.8449
|
-13.85
|
| SC-Aircraft 5%
|
0.5955
|
0.5931
|
0.40
|
0.72
|
| 0.7568
|
0.7455
|
1.49
|
| 0.7058
|
0.7039
|
0.27
|
| Ozzy Juice 3 100%
|
0.7029
|
0.7
|
0.41
|
0.37
|
| 0.8383
|
0.8333
|
0.60
|
| 0.9868
|
0.9857
|
0.11
|
Additional testing is required. The next steps include adding additional time to the unheated immersion and adding agitation with a stir bar. Dry step included during testing when adding stir bar.
No relation