To re-evaluate two supplied products for glass soap scum removal from two substrates using new dilutions.
Date Run:
08/17/2005
Experiment Procedure:
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.
Trial Results:
The DFC 23 removed over 90% of the contaminant while used at the higher concentration. The DFC 5 removed % of the contaminant while used at the lower concentration. The table below lists the amount of soil applied and removed from the coupons.
Substrate
Cleaner
Initial wt
Final wt
% Removed
Ceramic
DFC 23
0.1944
0.0245
87.40
0.2456
0.0589
76.02
0.2578
0.0273
89.41
DFC 5
0.2095
0.0089
95.75
0.0510
0.0018
96.47
0.1671
0.0250
85.04
Fiber Glass
DFC 23
0.2021
0.0156
92.28
0.2705
0.0172
93.64
0.4175
0.0003
99.93
DFC 5
0.2841
0.0083
97.08
0.3371
0.0065
98.07
0.1876
0.0134
92.86
Chrome
DFC 23
0.2103
0.0083
96.05
0.1369
0.0085
93.79
0.1366
0.0091
93.34
DFC 5
0.2303
0.0171
92.57
0.2562
0.0159
93.79
0.2078
0.0147
92.93
Success Rating:
A follow up test, usually based on company input.
Conclusion:
Both products performed better at altered dilution ratios.
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