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Trial Number 2

Trial Purpose:

To evaluate supplied product at a 32:1 concentration for all purpose cleaning

Date Run:

11/21/2012

Experiment Procedure:

The supplied cleaning product was diluted with DI water at room temperature to vendor recommended concentration for all purpose cleaning (32:1). The second product was used at the RTU concentration.

Preweighed porcelain, plastic and painted steel coupons were coated with a mixture of three cooking oils/greases. The mix was blend of 33% vegetable shortening, 33% lard, 33% vegetable oil and 1% carbon black. Care was taken in the application of the soil onto the coupons so that light and heavy areas were avoided. The soiled coupons were allow to dry for 24 hours at room temperature. The contaminated coupons were weighed again to determine the amount of soil added.

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 1-2 sprays of cleaning solutions. Each coupon was sprayed 2-3 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:

The supplied product at the 25% dilution rate was successful in removing the grease mix using manual cleaning. The porcelain substrate was a challenge for both cleaning products with 74% and 63% removal for the supplied and comparison product. When looking at the average removal for the other two substrates, the two products had more than 90% removal of the soils. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
Cycle Degrease porcelain    
  0.0352 0.0069 80.40
  0.0215 0.0082 61.86
  0.0204 0.0040 80.39
Cycle Degrease painted steel    
  0.0136 0.0019 86.03
  0.0227 0.0015 93.39
  0.0151 0.0020 86.75
Cycle Degrease plastic    
  0.0412 0.0034 91.75
  0.0673 0.0003 99.55
  0.0454 0.0006 98.68
Formula 409 porcelain    
  0.0178 0.0066 62.92
  0.0368 0.0092 75.00
  0.0329 0.0160 51.37
Formula 409 painted steel    
  0.0171 0.0010 94.15
  0.0295 0.0026 91.19
  0.0325 0.0013 96.00
Formula 409 plastic      
  0.0266 0.0022 91.73
  0.0495 0.0023 95.35
  0.0294 0.0020 93.20

Success Rating:

A follow up test, usually based on company input.

Conclusion:

The supplied product was found to be effective at the 32:1 dilution for all purpose cleaning.

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