Two supplied cleaning product were diluted to vendor recommended concentrations for bathroom cleaning. The product was diluted with DI water.
Six preweighed fiberglass, six ceramic and six chrome coupons were coated with SSL Soil 1 (Bathroom soap scum: Vaseline Dry Skin Lotion 21.4%, Dial Clean Rinsing Body Wash 14.3%, Market Basket Shampoo & Conditioner (Pert) 28.6%, Soft Soap Natural Liquid hand soap 21.4%, Coast Deodorant bar soap 7.2% and Water 7.1%) using a hand held 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 Professional Painter's Rag 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 cleaning unit was run for 20 cycles (~33 seconds). At the end of the cleaning, coupons were wiped once with a dry paper towel. Final weights were recorded, efficiencies were calculated and recorded.
Both products were not successful in removing SSL Soil 1 - Bathroom Soil from ceramic, fiberglass and chrome coupons. Table 1 lists the amount of soil applied and removed for each substrate and coupon.
Table 1. Soil Application and Removal
| Cleaner
|
Initial wt
|
Final wt
|
% Removed
|
| DFC 23 Ceramic
|
0.2137
|
0.0616
|
71.17
|
|
|
0.2605
|
0.0888
|
65.91
|
|
|
0.3234
|
0.0432
|
86.64
|
| DFC 5 Ceramic
|
0.2299
|
0.0501
|
78.21
|
|
|
0.1797
|
0.0460
|
74.40
|
|
|
0.2459
|
0.0397
|
83.86
|
| DFC 23 Fiberglass
|
0.1999
|
0.0389
|
80.54
|
|
|
0.2308
|
0.0498
|
78.42
|
|
|
0.2886
|
0.0379
|
86.87
|
| DFC 5 Fiberglass
|
0.2560
|
0.0528
|
79.38
|
|
|
0.2588
|
0.0424
|
83.62
|
|
|
0.3541
|
0.0337
|
90.48
|
| DFC 23 Chrome
|
0.1698
|
0.0086
|
94.94
|
|
|
0.1032
|
0.0081
|
92.15
|
|
|
0.1130
|
0.0086
|
92.39
|
| DFC 5 Chrome
|
0.1059
|
0.0158
|
85.08
|
|
|
0.2021
|
0.0185
|
90.85
|
|
|
0.2014
|
0.0185
|
90.81
|