Trial Purpose:
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:
07/16/2020Experiment 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.
