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Trial Number 2

Client Number 494

Project Number 1

Trial Purpose:

To test the effectiveness of the Washing Up Pad using three different methods on various substrates.

Date Run:

06/23/2022

Experiment Procedure:

Laminate, granite, and ceramic tiles were soiled with a mixture of melted, oily soils containing a small amount of carbon black. The tiles were dried for 24 hours at room temperature. The soaked product was used to scrub a portion of the soiled substrate using a straight-line washability apparatus. Three coupons were cleaned by each cleaning product being evaluated. Cleaning performance was observed visually and gravimetric analysis was conducted on all test panels by taking initial, soiled, and final clean weights. The amount of soil added was then compared to the amount removed (or remaining) to provide a percent removal.

Soil Preparation

A mixture of three cooking oils/greases was made. A melt blend of 33% vegetable shortening, 33% lard, 33% vegetable oil and 1% carbon lampblack was made up fresh for the testing. Care was taken in the application of the soil onto the coupons so that light and heavy areas were avoided. Allow the soiled tiles to dry for 24 hours at room temperature.

Cleaning Test

A soiled tile was placed in the tray of the abrasion tester such that the direction of the soiling is perpendicular to the direction of the sponge. The supplied cleaning product was wet and wrung out, and the desired side facing down was attached to the cleaning instrument. Test method number one focused on using the scrubbing side only. Test method number two focused on using the waffle side only. Test method number three was tested first with the scrubbing side and then with the waffle side. The cleaning was performed using Gardner Straightline washability unit and conducted for the prescribed 20 strokes.

Trial Results:

Cleaning data has been calculated as percent of contaminant removed using the following equation:

%Cont Removed = ((Initial soil wt - Final Soil wt)/Initial Soil wt) *100

Initial Soil weight of contaminant = Contaminated wt - Baseline wt

Final wt of contaminant = Cleaned wt - Initial wt

Table 1: Cleaning Efficiency Results

Product Substrate Initial wt of cont. Final wt of cont. %Cont Removed Average Overall Average
Washing Up Pad (106268) - Test #1 Ceramic 0.1470 0.0153 89.59 89.66 85.94
0.1938 0.0175 90.97
0.2022 0.0234 88.43
Laminate 0.1322 0.0167 87.37 88.45
0.1100 0.0086 92.18
0.1649 0.0234 85.81
Granite 0.1731 0.0414 76.08 79.70
0.2877 0.0607 78.90
0.2935 0.0466 84.12
Washing Up Pad (106268) - Test #2 Ceramic 0.1441 0.0046 96.81 98.27 95.38
0.2622 0.0020 99.24
0.1533 0.0019 98.76
Laminate 0.0894 0.0060 93.29 89.43
0.1144 0.0138 87.94
0.1120 0.0145 87.05
Granite 0.1605 0.0025 98.44 98.44
0.0181 0.0003 98.34
0.1779 0.0026 98.54
Washing Up Pad (106268) - Test #3 Ceramic 0.1282 0.0013 98.99 98.30 90.32
0.1527 0.0022 98.56
0.1508 0.0040 97.35
Laminate 0.1005 0.0178 82.29 82.21
0.0694 0.0118 83.00
0.0691 0.0129 81.33
Granite 0.1542 0.0154 90.01 90.45
0.1918 0.0226 88.22
0.0698 0.0048 93.12

Using only the scrubbing side of the Washing Up Pad was found to be the least effective method of removing the contaminant. The waffle side of the Washing Up Pad was the most effective at removing the DCC-17 soil from ceramic, laminate, and granite. Combining these two sides, slightly lowered the efficiency of removal but was still found to be effective.

Success Rating:

Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

Conclusion:

Using the Washing Up Pad with test method number two was found to be the most effective at removing the contaminant from all three substrates with an overall percent removal of 95.38%. Test method number three was found to be slightly less effective with an overall average percent removal of 90.32%. Test method number one was found to be the least effective at removing the contaminant with an overall average percent removal of 85.94%.

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