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




Surface Solutions Laboratory

Trial Report



Trial Number 379

(Client Number 153, Project Number 1)

Trial Purpose: Laboratory evaluations of alternative aerosol cleaning products

Date Run: 12/07/06

Experiment Procedure:
Seven products were selected for testing based on previous testing on the selected soil. All products were in aerosol spray cans.

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 one day before a second weight was recorded. Three coupons were cleaned with each solution for 15 seconds via aerosol spray cans. Coupons were not rinsed and were air dried at room temperature for 2 minutes. Following drying, final weights were recorded and cleaning efficiencies were calculated.

Trial Results
Five products removed over 90% of the soil using aerosol cleaning for 15 seconds. One product, BioBrake, removed just under 80%. The remaining
product, Mirachem 500 A, removed under 10%. During spraying, this product did not have a strong spray flow and did not dislodge/remove much of the
soil. However, with a wipe the soil should be easily removed. The WD 40 product also did not have a strong spray flow, but was greater than the
Mirachem 500 A. The Brake & Parts cleaner had the greatest spray delivery of all the aerosol products.

The table below lists the amount of soil applied, the amount remaining and the efficiency for each coupon cleaned.

Cleaner                         Initial wt   Final wt   % Removed
Bio Brake                         0.2453      0.0417      83.00
                                  0.4619      0.1095      76.29
                                  0.5118      0.1078      78.94
Mirachem 500 A                    0.4098      0.3769       8.03
                                  0.4042      0.3809       5.76
                                  0.2632      0.2250      14.51
Brakleen                          0.4361      0.0214      95.09
                                  0.4141      0.0600      85.51
                                  0.2924      0.0196      93.30
Heavy Duty Cleaner Degreaser      0.3133      0.0420      86.59
                                  0.6793      0.0330      95.14
                                  0.3622      0.0260      92.82
Micro X                           0.7132      0.0117      98.36
                                  0.7437      0.0204      97.26
                                  0.8229      0.0620      92.47
Non-Chlorinated Brake Cleaner     0.4152      0.0037      99.11
                                  0.5046      0.0099      98.04
                                  0.6540      0.0014      99.79
Brake & Parts Cleaner             1.3045      0.0007      99.95
                                  0.5256      0.0028      99.47
                                  0.5833      0.0027      99.54


Success Rating
Lab evaluation based on vendor data.

Conclusion
Five of the seven products were successful in removing the soil mix. The BioBrake could have removed all of the soil with a longer cleaning time and the Mirachem 500 A would be better for long soak times followed by a wipe.