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

Surface Solutions Laboratory

Trial Report

Trial Number 491

(Client Number 153, Project Number 1)

Trial Purpose: To evaluate possible immersion cleaning process for Brookfield compared to other cleaning solutions.

Date Run: 02/29/16

Experiment Procedure:
Four cleaners were tested at room temperature on aluminum, brass, and stainless steel coupons to evaluate how the Navi Guard Way Lube 32 soil was cleaned. Preweighed coupons were coated with the supplied Navi Guard soil using a hand held swab and weighed a second time to determine the amount of soil added. Each cleaner was put in a beaker and three coupons were immersed into the solution for 5 minutes. The coupons were then stood upright to air dry for 15 minutes and then placed on a tray. There was no rinse. Once dry, final weights were recorded and efficiency calculated for each coupon cleaned.

Trial Results
Cleaner        Substrate        Initial Wt.         Final Wt.     % Removed
Fluosolv CX    Aluminum         21.5357           21.5362            98.73
               Aluminum         21.5777           21.5790            96.95
               Aluminum         21.6689           21.6689            100.00
               Brass            69.4516           69.4517            99.51
               Brass            69.5391           69.5396            98.05
               Brass            69.6129           69.6129            100.00
               Stainless        60.1003           60.1009            97.35
               Stainless        63.9329           63.9331            99.45
               Stainless        63.8901           63.8941            90.85
Fluosolv NC    Aluminum         21.0619           21.0619           100.00

Success Rating
Lab evaluation based on vendor data.

All four cleaners efficiently removed the Navi Guard soil on all three substrates at room temperature. The least efficient cleaner used was Solstice 2A from Honeywell, with the lowest cleaning average on the stainless steel substrate. The Solstice 2A was still an efficient cleaner with a 97.52% efficiency, but was less efficient than the other cleaners used. The most efficient cleaner would be Solstice PF from Honeywell which had an efficiency of 98.48%. All cleaners worked extremely well.