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Trial Number 377

Client Number 153

Project Number 1

Trial Purpose:

Laboratory evaluations of alternative aerosol cleaning products

Date Run:

11/15/2006

Experiment Procedure:

Basic cleaning performance testing was conducted using ASTM G122 as the bases for cleaning. 

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
  0.929 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:

Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.

Conclusion:

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

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