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




Surface Solutions Laboratory

Trial Report



Trial Number 3

(Client Number 276, Project Number 1)

Trial Purpose: To evaluate semi-aqueous products in an attempt to increase cleaning times.

Date Run: 03/08/07

Experiment Procedure:
Eight products were selected from the lab's database, www.cleanersolutions.org, based on past testing effectiveness and compatibility with substrates and equipment. Four products were diluted to 10% using DI water in 600 ml beakers and the other four were used at full strength. Each solution was heated to 130 F on a hot plate.
Twenty-four preweighed coupons were coated with Jackonslea Grey Color 305 A (1344-28-1) by heating the buffing compound to facilitate transfer to the stainless steel coupons. Once cooled, coupons were weighed again to determine the amount of buffing compound applied. Three coupons were cleaned in each solution for 5 minutes using stir-bar agitation. Coupons were rinsed for 15 seconds in 120 F tap water and dried using compressed air at room temperature for 30 seconds. Coupons were weighed a third time to determine the amount of soil remaining and efficiencies were calculated for each coupon cleaned.

Trial Results
Seven of the eight products removed over 85% of the buffing compound within 5 minutes of immersion cleaning. Four of these removed over 94%. The table
lists the amount of buffing compound applied, the amount remaining after cleaning and the efficiency for each coupon cleaned.

Cleaner            Initial wt    Final wt     % Removed
SC Supersolve       0.2060        0.0459        77.72
                    0.2034        0.0012        99.41
                    0.4942        0.1112        77.50
Bio T Max           0.2996        0.0151        94.96
                    0.2861        0.0105        96.33
                    0.1876        0.0165        91.20
Solsafe 245         0.1825        0.0084        95.40
                    0.2511        0.0046        98.17
                    0.3870        0.0048        98.76
DS 104              0.3846        0.0401        89.57
                    0.2890        0.0265        90.83
                    0.2447        0.0393        83.94
Optisolv OP7171     0.3434        0.1085        68.40
                    0.4844        0.1820        62.43
                    0.3385        0.0627        81.48
Optisolv OP7168     0.4535        0.0125        97.24
                    0.5022        0.0392        92.19
                    0.4792        0.0092        98.08
Soy Gold 2000       0.2434        0.0290        88.09
                    0.5075        0.0593        88.32
                    0.5400        0.0373        93.09
D Greeze 500 Lo     0.4888        0.0161        96.71
                    0.5350        0.0185        96.54
                    0.6353        0.0103        98.38


Success Rating
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

Conclusion
The seven effective products will be tested at shorter times using ultrasonic energy.