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




Surface Solutions Laboratory

Client Information



Client Number 262 (Metal Working)


Client Images:

Client Image http://www.cleanersolutions.org/downloads/client_images/262A.JPG    Client Image http://www.cleanersolutions.org/downloads/client_images/262B.JPG    Client Image http://www.cleanersolutions.org/downloads/client_images/262C.JPG   


Project Number 1



Summary: Part of a joint venture between EPA, TURI and RI DEM to reduce the use of TCE in the Providence, RI area, five trials were conducted on this client’s buffing compounds. A 10% solution of Polyspray Jet 790 XS at the 150 F was the only product that was successful in cleaning the three part types supplied for cleaning. Parts have been sent back to the client for evaluation.

Test Objective: To find an alternative to TCE for removing buffing compounds from brass parts.

Problems with Current Method: Uses TCE

Purpose of Cleaning: To prepare parts for plating

Product Use: Medals, decorative products

Cleaning Chemicals: Trichloroethylene

Trial Number Date Run Purpose Success Rating
0 08/16/06 To evaluate selected products for buffing compound removal. Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined. 
1 08/17/06 To evaluate previously tested products using ultrasonic energy. A follow up test, usually based on company input. 
2 08/17/06 To evaluate top two products at higher temperature to achieve higher efficiencies. A follow up test, usually based on company input. 
3 08/22/06 To evaluate cleaners on water-based buffing compound using immersion cleaning. Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined. 
4 10/16/06 To evaluate selected product for cleaning supplied parts using ultrasonic energy Results suggest a scale-up feasible match for cleaning chemistry and equipment. Pilot plant study with actual parts recommended. 
5 12/08/06 To evaluate selected product for cleaning both buffing compound and oil using supplied parts. Results suggest a scale-up feasible match for cleaning chemistry and equipment. Pilot plant study with actual parts recommended. 
6 02/06/07 To determine if temperature or concentration were the cause for the tarnish seen on the parts cleaned during the on-site piloting. A follow up test, usually based on company input. 
7 02/06/07 To evaluate two most effective products found for this client for tarnishing effect with solution at room temperature. A follow up test, usually based on company input. 
8 02/07/07 To evaluate new, lower pH cleaners for cleaning brass parts that have been tarnishing with the previous cleaners we found that were effective. A follow up test, usually based on company input. 
9 02/07/07 To evaluate selected products on a wide range of client selected parts for cleaning and tarnishing. A follow up test, usually based on company input.