To evaluate supplied cleaning equipment for stainless steel polish as compared to conventional products
Date Run:
04/09/2015
Experiment Procedure:
Precleaned coupons were measured using a analytical balance and Spectro Guide Gloss-Color meter from BYK Gardner to evaluate weights and L-values. Baseline color-gloss readings of the surface were taken in five locations on the coated wood coupons. Coupons were then contaminated with a grease mix from three lab staff members. Weights and L-Value readings were taken a second time. Cleaning products were then sprayed onto the surface, wiped off with a micro fiber cloth attached to a Garnder Straight-line washability unit and cleaned for 5 cycles. Coupons were then dried with a single pass using a fresh micro fiber cloth. Gloss readings were taken again in the same five locations. The difference in weights gloss-color was then compared to determine effectiveness.
Cleaning data from the L-values can be calculated as percent detergency in the following equation:
% DET = L(cleaned) - L(soiled) X 100 L(unsoiled) - L(soiled)
The Pledge product resulted in marginally better soil removal rate based on gravimetric results as compared to Endust, Behold and PLZ. With the variance in the soil removal rates, there was no significant difference in the four products evaluated. Results for gravimetric results are listed in the table.
Table of Soil Removal Rates
Cleaner
Initial wt
Final wt
% Removed
Pledge Furniture
0.3005
0.094
68.72
0.361
0.0921
74.49
0.3422
0.0824
75.92
PLZ Furniture
0.4165
0.1591
61.8
0.3866
0.1029
73.38
0.23
0.1169
49.17
Endust
0.2696
0.0603
77.63
0.367
0.1475
59.81
0.4376
0.1353
69.08
Behold
0.5072
0.1552
69.4
0.3327
0.151
54.61
0.6145
0.1283
79.12
%DET
Cleaner
Initial L
Dirty L
Final L
% DET
% AVG
Std Dev
Pledge Furniture
59.60
36.18
50.90
62.85
71.00
18.97
61.40
35.49
50.38
57.47
61.76
31.24
59.53
92.69
PLZ Furniture
58.33
35.52
55.22
86.37
91.75
4.71
61.55
32.68
59.74
93.73
63.29
34.25
61.88
95.14
Endust
63.85
32.27
61.84
93.64
89.72
4.75
65.73
32.76
60.60
84.44
61.70
33.85
59.22
91.10
Behold
63.32
30.97
46.47
47.91
65.82
29.68
65.21
36.77
50.84
49.47
55.82
31.02
55.84
100.08
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
The PLZ product performed comparably with the three supplied products.
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