The purpose of this experiment was to determine the effectiveness of four cleaners; Propylene carbonate, SC Aircraft & Metal Cleaner, Ozzy Juice SW-3 and Dimethyl glutarate in removing a water rosin based coating from glass coupons using heated immersion at 120F for 15 minutes.
Date Run:
07/08/2020
Experiment Procedure:
Three glass coupons were obtained and weighed for each of the four cleaners to be tested; Propylene carbonate (100% concentration), SC Aircraft and Metal Cleaner (20% concentration), Ozzy Juice SW-3 (20% concentration), and Dimethyl glutarate (100% concentration). The coupons were soiled with the water rosin based coating and an additional weight measurement was taken. Cleaning solutions were allowed to heat to a temperature of 120 degrees Fahrenheit. Once solutions reached the temperature, the coupons were placed inside the solutions for 15 minutes. Once the 15 minutes had passed, coupons were allowed to air dry and a clean weight was taken. Coupons were then wiped once with a paper towel and a final clean weight measurement was obtained.
Trial Results:
Cleaner
Initial wt of cont.
Final wt of cont.
%Cont Removed
% AVG
Propylene Carbonate
0.0818
0.0825
-0.86
0.33
0.0747
0.0740
0.94
0.0769
0.0762
0.91
SC Aircraft & Metal Cleaner
0.0887
0.0776
12.51
6.08
0.0775
0.0758
2.19
0.0824
0.0795
3.52
Ozzy Juice
0.0870
0.0882
-1.38
-0.47
0.0827
0.0817
1.21
0.0816
0.0826
-1.23
Dimethyl Glutarate
0.0894
0.0000
100.00
99.38
0.0793
0.0000
100.00
0.0810
0.0015
98.15
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
Dimethyl glutarate was the most effective cleaner removing on average 99.38% of the water rosin based coating from glass substrates using heated immersion at 120 degrees Fahrenheit for 15 minutes and a single wipe with a paper towel.
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