To evaluate successful products on the final supplied contaminant.
Date Run:
05/17/2004
Experiment Procedure:
Five cleaners were selected from the previous trial. The five cleaners from the previous trials were diluted to 5% using DI water in 600 ml beakers at room temperature.
Fifteen preweighed titanium coupons were coated with ink from a Sharpie marker. The ink was applied first in a side to side manner and then in an up and down direction. Coupons were then weighed a second time to determine the amount of soil added. Three coupons were cleaned for about 2 minutes using a Gardner Straight Line Washability unit. Three coupons were placed into a Gardner Straight Line Washability unit. A Professional Painter's Rag was immersed into a beaker of the cleaning solutions and then attached to the cleaning sled. The cleaning unit was run for 75 cycles (~2 minutes). At the end of the cleaning cycle, coupons were weighed again and efficiencies were calculated.
Trial Results:
Two of the products, SC Aircraft and Micro 90, removed over 80% of the ink during manual cleaning. The other three products removed under 75%. The table lists the amount of oil added, the amount remaining and the efficiency for each coupon.
Cleaner
Initial wt
Final wt
% Removed
SC Aircraft & Metal Cleaner
0.0021
0.0000
100.00
0.0042
0.0001
97.62
0.0028
0.0001
96.43
Micro 90
0.0021
0.0004
80.95
0.0023
0.0002
91.30
0.0018
0.0004
77.78
Daraclean 282 GF
0.0016
0.0002
87.50
0.0022
0.0005
77.27
0.0017
0.0007
58.82
Inproclean 3800
0.0031
0.0009
70.97
0.0021
0.0011
47.62
0.0024
0.0008
66.67
Beyond 2004
0.0020
0.0011
45.00
0.0018
0.0004
77.78
0.0012
0.0004
66.67
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 successful products will be used to clean some of the supplied parts.
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