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




Surface Solutions Laboratory

Trial Report



Trial Number 377

(Client Number 153, Project Number 1)

Trial Purpose: Laboratory evaluations of alternative aerosol cleaning products

Date Run: 11/15/06

Experiment Procedure:
Fifteen products were selected for testing based on previous testing on the selected soil. Five products were diluted to 25%, two products were diluted to 17% and one was used at 10% using DI water. The other seven products were used at full strength. Products were used at room temperature.
Forty-five 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 less than one minute using low pressure spray. Coupons were then rinsed in a tap water spray for 5 seconds and dried using air blow off at room temperature for 10 seconds. Following drying, final weights were recorded and cleaning efficiencies were calculated.

Trial Results
Fourteen of the products removed over 95% of the soil mix within 30 seconds of spray cleaning. The one product that did not, removed just over 70%. It
may have been due to a lower delivery pressure. Two of the soy based products (Soy Gold 1000 and 2000) left a visible residue on the coupons. These
coupons were wiped with a paper towel and reweighed to determine if the residue could be easily removed from the surfaces. Wiping increased the
efficiency for both products.
In all, five products removed over 99% (seven when including wiping), 5 more removed over 98%. Many of the products had foaming occur to some extent
during the spray cleaning process. Lower concentrations could be tested to determine if the foaming would be decreased. 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
Aquavantage 1400     0.2968     0.0062     97.91
                     0.2957     0.0047     98.41
                     0.3448     0.0114     96.69
Daraclean 282        0.3040     0.1832     39.74
                     0.2624     0.0634     75.84
                     0.5967     0.0250     95.81
Inproclean 3800      0.3890     0.0060     98.46
                     0.2668     0.0039     98.54
                     0.4252     0.0088     97.93
Cal Parts Washer     0.1953    -0.0008    100.41
                     0.2838     0.0010     99.65
                     0.4623    -0.0001    100.02
Eliminator           0.1227     0.0010     99.19
                     0.1443     0.0069     95.22
                     0.2416     0.0091     96.23
Sea Wash Blue        0.5025     0.0043     99.14
                     0.4191     0.0036     99.14
                     0.8749     0.0024     99.73
278 Super Solv       0.6721     0.0314     95.33
                     0.4183     0.0142     96.61
                     0.9093     0.0266     97.07
Citrus Soy Solvent   0.9261     0.0093     99.00
                     0.5565     0.0085     98.47
                     0.2986     0.0093     96.89
Harvest Gold 2000    1.0054     0.0054     99.46
                     0.9290     0.0107     98.85
                     0.7738     0.0125     98.38
Maxi Solv            0.9340     0.0052     99.44
                     0.2918     0.0041     98.59
                     0.5647     0.0064     98.87
DS 104               0.4035     0.0010     99.75
                     0.5208     0.0052     99.00
                     0.5090    -0.0003    100.06
D Greeze 500 Lo      0.4698     0.0004     99.91
                     0.4024     0.0007     99.83
                     0.3723     0.0026     99.30
Solsafe 245          0.5731     0.0002     99.97
                     0.4618     0.0002     99.96
                     0.8017     0.0000    100.00
Soy Gold 1000        0.6150     0.0132     97.85
                     0.5308     0.0104     98.04
                     0.5221     0.0130     97.51
Soy Gold 2000        0.5566     0.0113     97.97
                     0.5493     0.0061     98.89
                     0.7190     0.0057     99.21
With Wipe
Soy Gold 1000                              99.17
Soy Gold 2000                              99.45


Success Rating
Lab evaluation based on vendor data.

Conclusion
The products that showed good cleaning will be evaluated further using an aerosol delivery process.