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




Surface Solutions Laboratory

Trial Report



Trial Number 2

(Client Number 299, Project Number 1)

Trial Purpose: To evaluate selected products on second supplied cutting fluid using simulated cleaning process.

Date Run: 05/01/08

Experiment Procedure:
Preweighed coupons were coated with the supplied cutting fluid (WA wood, 57 F Cutting oil) using a hand held swab and weighed a second time to determine the amount of soil added.

The same six cleaners were put in a bowl and three coupons were dunked into the solution at a constant rate for 30 seconds of cleaning. The coupons were then put on a tray and when done and allowed to air dry. There was no rinse. The process was done to as closely replicate the process used on site as possible. Once dry, final weights were recorded and efficiency calculated for each coupon cleaned.

Trial Results
Only one product was moderately successful, removing just over 80% of the cutting fluid. Two products removed over 50% and two removed just under 50%.
The table below lists the amount of soil added, the amount remaining and the efficiency for the coupons cleaned.

Cleaner        Initial wt Final wt % Removed
Solsafe 245     0.3962    0.0724    81.73
                0.3874    0.0541    86.04
                0.4505    0.0771    82.89
Metalnox M6310  0.3645    0.2270    37.72
                0.5897    0.3820    35.22
                0.6573    0.3098    52.87
Ionox HC 2      0.4813    0.3536    26.53
                0.4012    0.3868     3.59
                0.5882    0.0813    86.18
Soy Clear 1500  0.6034    0.2406    60.13
                0.6098    0.2130    65.07
                0.8293    0.2413    70.90
Biodiesel       0.4358    0.1980    54.57
                0.4878    0.1940    60.23
                0.4603    0.1615    64.91
SC Supersolve   0.5118    0.2864    44.04
                0.5555    0.2199    60.41
                0.4138    0.2423    41.45


Success Rating
A follow up test, usually based on company input.

Conclusion
Longer cleaning times should improve the efficiencies for many of the selected products. All six will be evaluated on the third supplied metal working fluid.