Trial Purpose:
To get a baseline evaluation of six possible alternatives for the removal of oil from company provided stainless steel coupons.
Date Run:
10/27/2021Experiment Procedure:
Six possible alternatives were identified through examination on CleanerSolutions. The alternatives concentrations were determined and the chemistries were created following those concentrations. Once the cleaners were made, they were put into beakers. One coupon per cleaner that was previously soiled by the company was weighted for dirty weights. The coupons were then put into the cleaner and immersed for 15 minutes. After the 15 minutes, they were taken out and left to dry overnight. The clean weights were taken the next day. The coupons were then wiped clean till all oil was removed from the surface and were weighed for initial weights.
| Cleaner | Concentration |
| SuperSolv | 1:1 |
| Simple Green | 1:20 |
| SC Aircraft | 1:3 |
| Water Works | 2:1 |
| Mirachem 500 | 2:1 |
Trial Results:
For unheated immersion, no cleaner was effective for removing the oil from stainless steel. S.C. Aircraft performed the best with 63% removal and visually was the cleanest overall. Next, Simple Green removed 57% of the soil and ranked number two for visual ratings. Mirachem 500 had an average of 48% and SuperSolv had an average of 45% and visually ranked as third and fourth for visual ratings. Lastly, Water Works came in last visually and had about 37% total removal effectiveness. Since two cleaners ranked over 50% removal with no TACT, they will continue to be investigated as possible alternatives.
| Cleaner | Initial wt. of cont. | Final wt. of cont. | Average |
| SuperSolv | 0.2789 | 0.1532 | 45.07 |
| Simple Green | 0.1725 | 0.0739 | 57.16 |
| SC Aircraft | 0.1297 | 0.0477 | 63.22 |
| Water Works | 0.2255 | 0.1429 | 36.63 |
| Mirachem 500 | 0.1890 | 0.0976 | 48.36 |
Summary
| Cleaner | Visual Rank | Gravimetric Rank |
| SuperSolv | 4 | 4 |
| Simple Green | 2 | 2 |
| SC Aircraft | 1 | 1 |
| Water Works | 5 | 5 |
| Mirachem 500 | 3 | 3 |
Success Rating:
Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.Conclusion:
Two cleaners (SC Aircraft and Simple Green) had an effectiveness over 50%. Next steps are to add agitation to the immersion and add heat to test if it will improve effectiveness.
