Trial Purpose:
The purpose of this test was to find out how effective Moldex Paint Prep, Motsenbocker’s Paint Prep, and a TSP substitute of 6.25% solution were at removing soil, wax pencil, DC17, and mustard from a stainless steel surface.
Date Run:
05/27/2014Experiment Procedure:
Three coupons were placed in a Gardner Straight Line Washability unit. A Kimberly-Clark Wypal reinforced paper towel was attached to the cleaning sled and soaked with 4-6 sprays of cleaning solutions. Each coupon was sprayed 3-5 times with the same cleaning solution. The cleaning unit was run for 20 cycles (~33seconds). At the end of the cleaning, bottom parts of the coupons were wiped once with a dry paper towel. Final weights were recorded, efficiencies were calculated and recorded.
Trial Results:
On three trays, four rows of three stainless steel coupons were set up. Each row contained a different contaminant, be it soil, wax pencil, DC17, or mustard, the soiled coupons were allowed to dry between the applications of the contaminants and cleaning. The coupons were then allowed to dry after being cleaned. Mass of the coupons was taken before soiling, after the contaminants were allowed to dry, and once the coupons were dry after cleaning.
| Product | Initial | Dirty | Final |
| Moldex_PaintPrep_Soil | |||
| 2.0915 | 0.0177 | 99.15 | |
| 1.9644 | 0.0045 | 99.77 | |
| 2.1221 | 0.0049 | 99.77 | |
| Moldex_PaintPrep_WaxCrayon | |||
| 0.1042 | 0.0047 | 95.49 | |
| 0.0114 | 0.0019 | 83.33 | |
| 0.0091 | 0.0090 | 1.10 | |
| Moldex_PaintPrep_DC17 | |||
| 0.5523 | 0.1829 | 66.88 | |
| 0.5299 | 0.1962 | 62.97 | |
| 0.4655 | 0.2274 | 51.15 | |
| Moldex_PaintPrep_Food_Mustard | |||
| 1.3146 | 0.1057 | 91.96 | |
| 1.1890 | 0.0464 | 96.10 | |
| 1.0763 | 0.0384 | 96.43 | |
| Motsenbocker_Soil | |||
| 2.4093 | 0.0051 | 99.79 | |
| 1.8457 | 0.0024 | 99.87 | |
| 2.1264 | 0.0222 | 98.96 | |
| Motsenbocker_WaxCrayon | |||
| 0.0081 | 0.0015 | 81.48 | |
| 0.0034 | 0.0017 | 50.00 | |
| 0.0032 | 0.0011 | 65.63 | |
| Motsenbocker_DC17 | |||
| 0.5606 | 0.0684 | 87.80 | |
| 0.4170 | 0.0531 | 87.27 | |
| 0.6402 | 0.0780 | 87.82 | |
| Motsenbocker_Food_Mustard | |||
| 1.2183 | 0.0752 | 93.83 | |
| 0.8888 | 0.0821 | 90.76 | |
| 1.0115 | 0.1008 | 90.03 | |
| TSP_Substitute_Soil | |||
| 2.0925 | 0.0076 | 99.64 | |
| 2.1517 | 0.0035 | 99.84 | |
| 2.1634 | 0.0411 | 98.10 | |
| TSP_Substitute_WaxCrayon | |||
| 0.0013 | 0.0011 | 15.38 | |
| 0.0007 | 0.0006 | 14.29 | |
| 0.0011 | 0.0018 | -63.64 | |
| TSP_Substitute_DC17 | |||
| 0.5499 | 0.1824 | 66.83 | |
| 0.6380 | 0.1593 | 75.03 | |
| 0.5513 | 0.1871 | 66.06 | |
| TSP_Substitute_Food_Mustard | |||
| 0.8492 | 0.0132 | 98.45 | |
| 0.8194 | 0.0124 | 98.49 | |
| 1.0780 | 0.0884 | 91.80 |
Summary
| Product Name | Conc. | % Efficiency | Effective | Observations |
| Moldex Paint Prep | 100 | 99.56 | Yes | Soil |
| Moldex Paint Prep | 59.97 | No | Wax pencil | |
| Moldex Paint Prep | 60.34 | No | Grease mix | |
| Moldex Paint Prep | 94.83 | Yes | Mustard | |
| Motsenbocker’s | 100 | 99.54 | Yes | Soil |
| Motsenbocker’s | 100 | 65.7 | No | Wax pencil |
| Motsenbocker’s | 100 | 87.63 | Yes | Grease mix |
| Motsenbocker’s | 100 | 91.54 | Yes | Mustard |
| TSP Substitute | 6.25 | 99.19 | Yes | Soil |
| TSP Substitute | 6.25 | -11.32 | No | Wax Pencil |
| TSP Substitute | 6.25 | 69.31 | No | Grease mix |
| TSP Substitute | 6.25 | 96.24 | Yes | Mustard |
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.Conclusion:
All three cleaners effectively removed the soil from the coupons. Motsenbocker’s was the only one effective at removing DC17. Mustard was effectively removed by all three cleaners. More tests should be done on the subject of effectively cleaning wax off of surfaces.
