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

Surface Solutions Laboratory

Trial Report

Trial Number 0

(Client Number 270, Project Number 1)

Trial Purpose: To evaluate selected cleaners for removing quench oil from steel parts using immersion cleaning.

Date Run: 09/11/06

Experiment Procedure:
Six alternative products were selected from the lab's database of testing results based on supplied client information. Products were selected based on oil removal potential and compatibility with brass, steel and stainless steel metal substrate. Each product was diluted to 5% in 250 ml beakers using DI water and heated to 130 F on a hot plate.
Eighteen preweighed coupons were coated with the supplied quench oil using a hand held swab after. Coupons were weighed a second time to determine the amount of oil added. Three coupons were cleaned in each solution for five minutes using minimal stir bar agitation. Coupons were rinsed for 15 seconds in a tap water bath at 120 F and dried using a dry compressed air for 30 seconds. Once dry coupons were weighed a final time and product efficiencies were calculated.

Trial Results
All six products removed over 95% of the quench oil within 5 minutes of immersion cleaning. Three of these products removed over 99.5%. The following
table lists the amount of buffing compound applied, the amount remaining and the efficiency for each coupon cleaned.

Cleaner                Initial wt Final wt  % Removed
Aquavantage 1400       0.1591     0.0027     98.30
                       0.1252     0.0089     92.89
                       0.2027     0.0071     96.50
Surface Cleanse 930    0.1523     0.0087     94.29
                       0.2291     0.0060     97.38
                       0.2147     0.0054     97.48
SeaWash Blue           0.2132    -0.0001    100.05
                       0.2622     0.0001     99.96
                       0.2490     0.0010     99.60
Inproclean 3800        0.2440     0.0008     99.67
                       0.2161     0.0012     99.44
                       0.2616     0.0011     99.58
Polyspray Jet 790 XS   0.2134     0.0007     99.67
                       0.2992     0.0000    100.00
                       0.2703     0.0007     99.74
Daraclean 283          0.2960    -0.0003    100.10
                       0.1962     0.0025     98.73
                       0.3180     0.0099     96.89

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

All six products were found to work on the supplied quench oil. Cleaning with ultrasonic energy will increase the effectiveness of the products especially when dealing with intricate parts. Having found products successful on the quench oil, the next step will be to evaluate these cleaners on supplied parts at or after workshop.