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)
ChemistriesEvaluated: Product 1; Comparative Stainless Steel Polish; Water;
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
|
|
|