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Toxics Use Reduction Institute · Surface Solutions Laboratory
 
Toxics Use Reduction Institute




Surface Solutions Laboratory

Trial Report



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: 05/27/14

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 part 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

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	65.70	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.