The supplied cleaning product was used at the supplied concentration (20:1). A second product, selected by the lab, was diluted with DI water to vendor recommended dilution (0.4%) for glass cleaning. Preweighed chrome coupons were coated with SSL Soil 2 (Glass soap scum: Water 51.5%, Hair gel 25.6%, Toothpaste 10.4%, Shaving cream 5.3%, Hair spray 3.7% and Spray deodorant 3.5%) using a handheld swab and allowed to dry for 24 hours at room temperature. The contaminated coupons were weighed again to determine the amount of soil added.
Three coupons were placed into a Gardner Straight Line Washability unit. A Kimberly Clark Reinforced paper towel was attached to the cleaning sled and soaked with 5-7 sprays of cleaning solutions. Each coupon was sprayed 7-10 times with the same cleaning solution. The solution was allowed to penetrate for 30 seconds followed by cleaning in the SLW unit for 5 cycles (~10 seconds). At the end of the cleaning, coupons were wiped once with a dry paper towel. Final weights were recorded, and efficiencies were calculated and recorded.
Trial Results:
The supplied product was effective in removing the glass soap scum with a manual wiping action. The table lists the amount of soil initially added and the amount remaining after cleaning and the product efficiency for each coupon cleaned.
Cleaner
Initial wt
Final wt
% Removed
H2O2-glass
0.0245
0.0021
91.43
0.0317
0.0043
86.44
0.0303
0.0038
87.46
H2O2-chrome
0.0510
0.0109
78.63
0.0412
0.0076
81.55
0.0344
0.0052
84.88
Green Works-glass
0.0378
0.0099
73.81
0.0374
0.0067
82.09
0.0455
0.0071
84.40
Green Works-chrome
0.0507
0.0104
79.49
0.0454
0.0105
76.87
0.0520
0.0105
79.81
Success Rating:
A follow up test, usually based on company input.
Conclusion:
The supplied product had an overall average efficiency greater than 85% and would be considered effective based on the SSL testing methodology.
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