The supplied cleaning products were diluted to the recommended concentrations using tap water at room temperature.
The two soils used were GS-34 maintenance and GS-34 Production. The First Soil, GS-34 maintenance soil consisted of 10 grams of carbon black, 10 grams iron oxide, 100 ml WD-40, 100 ml hydraulic oil, and 100 ml gear oil. Each component was placed in a 750 beaker and mixed for 20 minutes at room temperature using a magnetic stirrer. The second soil, production soil, was made by mixing 200 ml Quench Oil and 200 ml cutting oil for 20 minutes at room temperature using a magnetic stirrer in a second 750 ml beaker.
Approximately 100 mg of each soil was applied to a precleaned and preweighed stainless steel coupon onto one side only with a handheld swab. The maintenance soil on the coupons was baked in an oven for 30 minutes at a temperature of 40° C (105 F). For the production soil, the coupons were baked in an oven for thirty minutes at 105° C (220 F). The coupons were then allowed to cool to room temperature and weigh a second time. Three coupons were placed into a Gardner Straight Line Washability unit. A Wypall L30 reinforced wipe was attached to the cleaning sled and soaked with 2-3 sprays of a cleaning solution. Each coupon was sprayed 2-3 times with the same cleaning solution. The solution was allowed to penetrate for 30 seconds followed by cleaning in the SLW unit for 20 cycles (~30 seconds). Efficiency was calculated for each coupon.
Cleaner: Booyah Direct Release 2X; Direct Power Green 10%
Both cleaning products worked very well at removing both soils using manual cleaning. The Direct Power Green product slightly outperformed the Booyah product on the maintenance soil, 90.3% to 88.9 %, but the reverse was true for the production soil with Booyah working better than the Direct Power Green, 96.3% to 95.6.
The table lists the amount of soil added, the amount remaining, and the efficacy of each coupon cleaned by each product.
| Cleaner
|
Initial wt
|
Final wt
|
% Removed
|
| Maintenance Soil
|
|
|
|
| Booyah
|
|
|
|
|
|
0.0835
|
0.0161
|
80.72
|
|
|
0.0696
|
0.0049
|
92.96
|
|
|
0.0779
|
0.0054
|
93.07
|
| Direct Power Green
|
|
|
|
|
|
0.0903
|
0.0073
|
91.92
|
|
|
0.0748
|
0.0077
|
89.71
|
|
|
0.0821
|
0.0088
|
89.28
|
| Grime Off Spray
|
|
|
|
|
|
0.0815
|
0.0057
|
93.01
|
|
|
0.0792
|
0.0073
|
90.78
|
|
|
0.0816
|
0.0094
|
88.48
|
| Grime Off Wipes
|
|
|
|
|
|
0.0742
|
0.0070
|
90.57
|
|
|
0.0650
|
0.0080
|
87.69
|
|
|
0.0747
|
0.0081
|
89.16
|
| Production Soil
|
|
|
|
| Booyah
|
|
|
|
|
|
0.0845
|
0.0034
|
95.98
|
|
|
0.0957
|
0.0030
|
96.87
|
|
|
0.0847
|
0.0032
|
96.22
|
| Direct Power Green
|
|
|
|
|
|
0.0895
|
0.0033
|
96.31
|
|
|
0.0984
|
0.0041
|
95.83
|
|
|
0.0923
|
0.0047
|
94.91
|
| Grime Off Spray
|
|
|
|
|
|
0.0801
|
0.0040
|
95.01
|
|
|
0.0716
|
0.0037
|
94.83
|
|
|
0.0898
|
0.0027
|
96.99
|
| Grime Off Wipes
|
|
|
|
|
|
0.0973
|
0.0041
|
95.79
|
|
|
0.0926
|
0.0034
|
96.33
|
|
|
0.0923
|
0.0040
|
95.67
|