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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 299, Project Number 1)

Trial Purpose: To evaluate selected products on third supplied metal working fluid using simulated cleaning process

Date Run: 05/01/08

Experiment Procedure:
Preweighed coupons were coated with the supplied rust preventative (WA Wood FPS Rustnot) coating 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
Two products were moderately successful, removing just under 80% of the cutting fluid. Three products removed over 60%. 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     0.2318    0.0979    57.77
                0.2433    0.0853    64.94
                0.2369    0.0756    68.09
Metalnox M6310  0.2875    0.0533    81.46
                0.2139    0.0652    69.52
                0.4080    0.0558    86.32
Ionox HC 2      0.1237    0.0334    73.00
                0.3589    0.1018    71.64
                0.3187    0.0950    70.19
Soy Clear 1500  0.2197    0.1693    22.94
                0.3513    0.0955    72.82
                0.3048    0.1086    64.37
Biodiesel       0.4299    0.1093    74.58
                0.3216    0.1754    45.46
                0.4310    0.1572    63.53
SC Supersolve   0.3908    0.2024    48.21
                0.1098    0.0174    84.15
                0.4074    0.1512    62.89


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.

Solsafe 245 had the highest combined cleaning efficiency followed by Metalnox M6310 when looking at all three fluids.