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.
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.