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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 27, Project Number 2)

Trial Purpose: To identify possible alternatives to toluene for manual wax removal.

Date Run: 10/19/09

Experiment Procedure:
Nine products were selected from the lab?s on-line database, www.cleanersolutions.org, based on client supplied information. All were used at room temperature. Five alkaline aqueous cleaners were diluted to 5% using DI water in 300 ml beakers. Four cleaners were used at full strength. Twenty-four preweighed aluminum coupons were coated with wax manually without heat gun and allowed to dry for 24 hours at room temperature. 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. Coupon was cleaned for 18 cycles (~30 seconds) straightly. 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
Three products were effective in removing the wax with a manual wiping action. The table lists the amount of soil initially added and the amount
remaining after cleaning and the product efficiency for each coupon cleaned.

Cleaner        Initial wt        Final wt        % Removed
Buckeye Shopmaster RC 100%                        
                    0.0245        0.0009        96.32
                    0.0360        0.0008        97.77
                    0.0257        0.0015        94.16
Gemtek SC Aircraft metal cleaner 5%                        
                    0.0244        0.0029        88.11
                    0.0257        0.0036        85.99
                    0.0444        0.0089        79.95
Biochem Solsafe 245 100%                        
                    0.0425        0.0037        91.29
                    0.0381        0.0060        84.25
                    0.0483        0.0106        78.05
AG Environment Soy Clear 1500 100%                        
                    0.0524        0.0181        65.45
                    0.0587        0.0180        69.33
                    0.0405        0.0198        51.11
MacDemid ND LF Supreme 5%                        
                    0.0547        0.0163        70.20
                    0.0468        0.0184        60.68
                    0.0496        0.0185        62.70
Alconox Detergent 8 5%                        
                    0.0329        0.0052        84.19
                    0.0265        0.0116        56.22
                    0.0340        0.0040        88.23
Hurrisafe Hurrisafe 9100 5%                        
                    0.0449        0.0121        73.05
                    0.0397        0.0112        71.78
                    0.0362        0.0150        58.56
Activion                         
                    0.0494        0.0141        71.45
                    0.0449        0.0086        80.84
                    0.0387        0.0193        50.12
Hurrisafe Hurrisafe S-910 5%                        
                    0.0315        0.0162        48.57
                    0.0318        0.0125        60.69
                    0.0592        0.0109        81.58


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

Conclusion
Three products (Shopmaster RC, SC Aircraft metal cleaner, Solsafe 245) removed more than 85% of the wax from aluminum coupon. A follow up test will be conducted using longer cleaning times.