Trial Purpose:
To find the best fit product for cleaning Leach Garner’s #9 Marvel Mystery from copper and stainless steel surfaces meant to resemble the cleaning of precious metals.
Date Run:
09/25/2016Experiment Procedure:
Coupons of stainless steel and copper were selected and arranged on trays, so that each cleaner had an assigned set of each surface. Before taking initial weights coupons were wiped down with Kimwipes. After taking weights the coupons were promptly soiled and reweighed. All cleaners were gathered in respective bottles and beakers. A stir bar was used in conjunction with a heating plate equipped to stir the solutions. The coupons were added to the beakers three of a kind at one time, and then allowed to sit in the stirred solution at room temperature for 5 minutes while observations were taken. Finally, clean weights were taken at the end of all the testing.
Trial Results:
| Cleaner | Substrate | Initial wt. | Final wt. | % Cont Removed | % Overall |
| FluoSolv CX | Stainless | 0.0559 | 0.0046 | 91.77 | |
| Stainless | 0.0635 | 0.0044 | 93.07 | 92.90 | |
| Stainless | 0.0667 | 0.0041 | 93.85 | ||
| Copper | 0.0545 | 0.0041 | 92.48 | ||
| Copper | 0.0479 | 0.0039 | 91.86 | 92.16 | |
| Copper | 0.0508 | 0.0040 | 92.13 | ||
| Fluosolv NC | Stainless | 0.0339 | 0.0037 | 89.09 | |
| Stainless | 0.0951 | 0.0083 | 91.27 | 90.41 | |
| Stainless | 0.0471 | 0.0043 | 90.87 | ||
| Copper | 0.0590 | 0.0049 | 91.69 | ||
| Copper | 0.0667 | 0.0045 | 93.25 | 92.28 | |
| Copper | 0.0494 | 0.0040 | 91.90 | ||
| Vertrel Sion | Stainless | 0.0786 | 0.0010 | 98.73 | |
| Stainless | 0.0567 | 0.0002 | 99.65 | 99.38 | |
| Stainless | 0.0433 | 0.0001 | 99.77 | ||
| Copper | 0.0323 | 0.0012 | 96.28 | ||
| Copper | 0.0382 | 0.0011 | 97.12 | 97.39 | |
| Copper | 0.0804 | 0.0010 | 98.76 | ||
| Solstice PF | Stainless | 0.0384 | 0.0000 | 100.00 | |
| Stainless | 0.0448 | 0.0005 | 98.88 | 99.32 | |
| Stainless | 0.0216 | 0.0002 | 99.07 | ||
| Copper | 0.0377 | 0.0000 | 100.00 | ||
| Copper | 0.0346 | 0.0002 | 99.42 | 99.59 | |
| Copper | 0.0459 | 0.0003 | 99.35 |
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.Conclusion:
The cleaners selected worked well in dissolving the oil. There was some filming and streaking present, especially with FluoSolv CX and FluoSolv NC. Vertrel Sion and Solstice PF were the better of the cleaners, even though they did have some streaking and some residue in the case of Solstice PF. Of the two better cleaners, Vertrel Sion showed the least visual streaking.
