To test the effectiveness of Purple Tiger reformulations in cleaning dried soda from aluminum substrates.
Date Run:
05/25/2021
Experiment Procedure:
Ten reformulated Purple Tiger products were created and tested: PT 2021, PT 2021A, AHS, GSC, Conc, Conc A, Conc AL, Conc 10%, Conc A 10%, and Conc AL 10%. Three aluminum coupons were obtained and weighed for each of the reformulation products being tested. Coupons were then soiled with soda and baked in the oven at 400°F, for 10 minutes. After baking, coupons were allowed to cool, and a dirty weight was recorded. Coupons were then loaded onto a Gardner-scrub Straight Line Wash unit set to 10 cycles per minute for 20 cycles. Three pumps of cleaner were applied to each of the respective coupons and four pumps of cleaner were applied to the scrubbing blocks. The cleaner was allowed to sit for 30 seconds. Following the 30 seconds of resting, the SLW unit was run to simulate scrub cleaning. Coupons were then removed from the machine and allowed to dry in air for 24 hours. After the drying period, coupons were weighed, and a final clean weight was recorded. Effectiveness of the cleaners was determined.
Trial Results:
Cleaner
Initial wt of cont.
Final wt of cont.
%Cont Removed
% AVG
PT 2021
0.1625
0.0764
52.98
49.78
0.1517
0.0747
50.76
0.1489
0.0810
45.60
PT 2021 A
0.1575
0.0936
40.57
48.9
0.1462
0.0611
58.21
0.1352
0.0704
47.93
AHS
0.2168
0.1591
26.61
54.86
0.1638
0.0884
46.03
0.3122
0.0252
91.93
GSC
0.2534
0.0401
84.18
68.06
0.2613
0.0851
67.43
0.1668
0.0791
52.58
Concentration
0.3182
0.0412
87.05
76.88
0.1591
0.0298
81.27
0.2338
0.0881
62.32
Concentration A
0.3306
0.1150
65.21
57.79
0.2282
0.1794
21.38
0.3371
0.0446
86.77
Concentration AL
0.2850
0.1240
56.49
37.57
0.1976
0.1339
32.24
0.2999
0.228
23.97
Conc 10%
0.4156
0.1733
58.30
70.17
0.4500
0.1092
75.73
0.3835
0.0902
76.48
Conc A 10%
0.4219
0.0179
95.76
96.38
0.4445
0.0117
97.37
0.4035
0.0161
96.01
Conc AL 10%
0.4503
0.0673
85.05
92.73
0.4052
0.0170
95.80
0.3649
0.0097
97.34
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
Concentration A 10% and Concentration AL 10% were the most effective reformulations to clean dried soda from aluminum substrates, removing an average of 96.38% and 92.73%. Next steps are to send data to the company for further evaluation.
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