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




Surface Solutions Laboratory

Trial Report



Trial Number 8

(Client Number 341, Project Number 1)

Trial Purpose: To evaluate three supplied products for all purpose cleaning as part of three part experiment to evaluate product at one concentration for multiple cleaning tasks.

Date Run: 05/26/11

Experiment Procedure:
Ceramic, Painted steel, and polycarbonate coupons were weighed and then coated with Hucker's Soil Formulation (Creamy peanut butter, salted butter, Arrowhead Mills stone ground wheat flour, egg yolk, evaporated milk, distilled water, printer's ink with boiled linseed oil, Shaws saline solution) using a hand held swab and allowed to dry for 24 hours at room temperature. The contaminated coupons were weighed again to determine the amount of soil added. All three cleaners were diluted at 2.4 %.

Three coupons were placed into a Gardner Straight Line Washability unit. A Kimberly-Clark Wypal reinforced paper towel was attached to the cleaning sled and soaked with 5-7 sprays of cleaning solutions. Each coupon was sprayed 7-10 times with the same cleaning solution. The cleaning unit was run for 20 cycles (~33 seconds). At the end of the cleaning, coupons were wiped once with a dry paper towel. Final weights were recorded, efficiencies were calculated and recorded.

Trial Results
All products were effective at removing more than 85% of the Hucker?s soil from two of the surfaces (painted steel and polycarbonate) using manual
wiping. However, MD Stetson PC 220 and RMC DFE 401 were not effective at removing the Hucker's soil on ceramic surface. The table lists the amount of
soil added, the amount remaining after cleaning and the calculated efficiency for each of the ceramic, painted steel and polycarbonate coupons
cleaned. 

Cleaner                Initial wt  Final wt   % Removed
MD Stetson PC 220_ceramic                        
                        0.3867     0.0696      82.00
                        0.4443     0.1045      76.48
                        0.3469     0.1057      69.53
MD Stetson PC 220_Painted steel                                                   
                        0.0613     0.0033      94.62
                        0.0348     0.0014      95.98
                        0.0375     0.0024      93.60
MD Stetson PC 220_polycarb                                                   
                        0.3455     0.0466      86.51
                        0.2351     0.0402      82.90
                        0.3404     0.0927      72.77
RMC DFE 401_ceramic                                                   
                        0.1733     0.0675      61.05
                        0.1067     0.0458      57.08
                        0.1026     0.0445      56.63
RMC DFE 401_Painted steel                                                  
                        0.0504     0.0045      91.07
                        0.0628     0.0030      95.22
                        0.0618     0.0038      93.85
RMC DFE 401_polycarb                                                  
                        0.0799     0.0279      65.08
                        0.2251     0.0165      92.67
                        0.3645     0.0280      92.32
MD Stetson PC 101_ceramic                                                  
                        0.1939     0.0203      89.53
                        0.1160     0.0013      98.88
                        0.0839     0.0056      93.33
MD Stetson PC 101_Painted steel                                                  
                        0.0593     0.0031      94.77
                        0.0892     0.0026      97.09
                        0.0591     0.0031      94.75
MD Stetson PC 101_polycarb                                                   
                        0.0399     0.0086      78.45
                        0.0719     0.0073      89.85
                        0.0440     0.0026      94.09


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

Conclusion
MD Stetson PC 101 cleaner was effective to remove the Hucker's soil on various types of surfaces. Next step will be to evaluate products at the same concentration for bathroom cleaning.