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Trial Number 0

Client Number 368

Project Number 2

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:

05/27/2014

Experiment 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.

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