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Trial Number 8

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:

05/26/2011

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.

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