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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 299, Project Number 1)

Trial Purpose: To evaluate selected nPB alternatives for drop-in replacement to TCE for removing oil and grease from various metals.

Date Run: 04/02/08

Experiment Procedure:
Two products were selected from the lab's on-line database, www.cleanersolutions.org, based on client supplied information for a drop-in solvent replacement to TCE. Each product was used at room temperature.

Six dirty parts, coated with various oils were cleaned using immersion cleaning with no agitation. Larger parts were cleaned for less than 1 minute and the small gear pieces were cleaned in under 20 seconds. Two parts were cleaned in one solvent and four in the second.

Trial Results
Cleaning observations were made to determine the amount of cleaning that took place. 
Cleaner      Part            Observation
M6960        Large gear      Outside surface was clean as needed
                             Some grease still in the interior hole
                             Dried quickly
             Small gear      Cleaned quickly and effectively
Lenium CP    Large gear      Outside surface was clean as needed
                             Some grease still in the interior hole
                             Dried quickly
             Small gear      Cleaned quickly and effectively


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

Conclusion
Both products were very effective on the smaller gears. The addition of heat and ultrasonics will help to improve overall performance on the more difficult parts and soils.