The purpose of this experiment was to determine the effectiveness of heated immersion with a stir bar for the removal of pitch and protect-o-coat contaminants.
Date Run:
07/16/2020
Experiment Procedure:
Two glass coupons were obtained for each of the six cleaners tested at the following concentrations and temperatures; Smart Solve 605 (100% 150°F), RB Degreaser (20% 180°F), SC Actisolv (50% 120°F), Propylene carbonate (100% 180°F), Dimethyl glutarate (100% 180°F) and SC Maxisolv (100% 120°F). One coupon was soiled with pitch and the other with the protect-o-coat soil and a dirty weight was obtained. When cleaning solutions reached proper temperatures, coupons were inserted along with a stir bar to cause agitation for 30 minutes. When 30 minutes had passed, coupons were removed and allowed to air dry for 24 hours. After the dry step a final clean weight was obtained. Effectiveness of cleaners was determined.
Trial Results:
Cleaner
Initial wt of cont.
Final wt of cont.
% Cont. Removed
%AVG
Smart Solve 605
0.5585
0.0029
99.48
94.04
0.0079
0.0009
88.61
RB Degreaser
0.4033
0.3378
16.24
16.24
0.0169
N/A
N/A
SC Actisolv
0.5851
0.4175
28.64
13.78
0.0223
0.0331
-1.08
Propylene carbonate
0.438
0.2545
41.9
41.90
0.0269
N/A
N/A
Dimethyl glutarate
0.4575
0.0005
99.89
78.58
0.0206
0.0088
57.28
SC Maxisolv
0.7662
0.0007
99.91
95.49
0.0112
0.001
91.07
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
SC Maxisolv was the most effective cleaner in removing both the pitch and protect-o-coat soils with an average of 95.49% removal. Smart Solve 605 was the second most effective removing an average of 94.04%. Next step would be to discuss with the company about further testing either in the lab or on-site.
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