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Toxics Use Reduction Institute · Surface Solutions Laboratory
 
Toxics Use Reduction Institute




Surface Solutions Laboratory

Trial Report



Trial Number 373

(Client Number 153, Project Number 1)

Trial Purpose: Laboratory evaluations of alternative aerosol cleaning products

Date Run: 10/12/06

Experiment Procedure:
Seven products were selected for testing based on equipment compatibility and soil removal. The six products were used at full strength in 250 ml beakers, one product was used at 5% and another at 25%. Both dilutions were made with DI water in 600 ml beakers. Products were used at room temperature.

Twenty-one preweighed aluminum coupons were coated with a collection of brake/engine soil collected from an automobile shop. The coupons were allowed to sit for several days before a second weight was recorded. Three coupons were cleaned in each solution for 5 minutes using minimal agitation from a magnetic stir bar. Coupons were then rinsed in tap water for 15 seconds and dried using air blow off at room temperature for 30 seconds. Following drying, final weights were recorded and cleaning efficiencies were calculated.

Trial Results
The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.

Cleaner                 Initial wt  Final wt  % Removed
Solsafe 245             0.5652      0.0978      82.70
                        0.7022      0.0628      91.06
                        0.6891      0.1613      76.59
Polyspray Jet 790 P     0.7052      0.6415       9.03
                        0.7512      0.6341      15.59
                        0.7286      0.7247       0.54
Inproclean 4000 T       0.6550      0.4985      23.89
                        0.5046      0.3748      25.72
                        0.5013      0.3329      33.59
Soy Gold 2000           0.6691      0.1737      74.04
                        0.6924      0.2721      60.70
                        0.5639      0.2288      59.43
Soy Gold 1000           0.4381      0.1688      61.47
                        0.4884      0.2542      47.95
                        0.5974      0.1700      71.54
Formula 180 D           0.7346      0.6544      10.92
                        0.6540      0.4955      24.24
                        1.1044      0.9722      11.97
Actisolv                0.4437      0.3976      10.39
                        0.7289      0.6769       7.13
                        0.9546      0.9009       5.63


Success Rating
Lab evaluation based on vendor data.

Conclusion
Three products were moderately successful in removing the brake/engine grease-oil mix using immersion cleaning at room temperature and will be used in the next round of aerosol testing.