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

Surface Solutions Laboratory

Trial Report

Trial Number 6

(Client Number 27, Project Number 2)

Trial Purpose: To evaluate top five products on sixth supplied contaminant using manual cleaning

Date Run: 11/04/09

Experiment Procedure:
Five products from the previous trials were selected based on performance. All were used at room temperature. Two alkaline aqueous cleaners were diluted to 5% using DI water in 300 ml beakers. Three cleaners were used at full strength. Fifteen preweighed aluminum coupons were coated with Poseo Premium HPL 6 oil using a hand held swab. The contaminated coupons were weighed again to determine the amount of soil added.

Each cleaner tested with three coupons. Three coupons were placed into a Gardner Straight Line Washability unit. A Kimberly Clark Reinforced paper towel was attached to the cleaning sled and soaked with 5-7 sprays of cleaning solutions. Each coupon was sprayed 3 times with the same cleaning solution. First, Coupon was cleaned for 15 cycles two times; after coupon was cleaned for 15 cycles, experimenter changed the paper towel and soaked with 5 spray of same cleaning solution. At the end of the cleaning, coupons were dried at room temperature naturally. Final weights were recorded and efficiencies were calculated and recorded.

Trial Results
Four of the five worked very well on the light oil, removing more than 85%.  The Activeion unit had the lowest efficiency at 75%. The table lists the
amount of oil added, the amount remaining and the efficiency for each coupon cleaned.

Cleaner Initial wt   Final wt    % Removed
Shopmater RC 100%                        
        0.0418        0.0048        88.52
        0.0366        0.0050        86.34
        0.0424        0.0039        90.80
SC Aircraft metal cleaner 5%                        
        0.0229        0.0020        91.27
        0.0122        0.0017        86.07
        0.0160        0.0035        78.13
Solsafe 245 100%                        
        0.1359        0.0160        88.23
        0.0465        0.0088        81.08
        0.0324        0.0022        93.21
Detergent 8 5%                        
        0.0683        0.0045        93.41
        0.0202        0.0025        87.62
        0.0257        0.0037        85.60
        0.0247        0.0020        91.90
        0.0271        0.0099        63.47
        0.0201        0.0054        73.13

Success Rating
A follow up test, usually based on company input.

Based on past performance on the previous contaminants, all five products will be tested on the next supplied contaminant under the same conditions.