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Trial Number 1

Client Number 346

Project Number 1

Trial Purpose:

To evaluate the removal of Hucker's soil from painted metal

Date Run:

04/07/2021

Experiment Procedure:

Painted metal coupons were gathered with 3 coupons for each of 3 dilutions of both cleaners (18 coupons in total). Initial weights for each coupon were taken and recorded. Hucker's soil (Creamy Peanut Butter, Salted Butter, Wheat gluten, Egg Yolk, Evaporated milk, DI water, Printer's ink with boiled linseed oil, India Ink, Saline Solution) was spread on all 18 coupons and allowed to air dry for 2 hours. Contaminated weights were taken and recorded. Dilutions were created for both cleaners with the dilutions being 1%, 5%, and 10%. Each dilution was used on a set of 3 painted metal coupons that were loaded into an SLW machine. Each coupon and the wipe on the cleaning track were sprayed twice with each cleaner dilution. The SLW machine was run for 20 repetitions to simulate 20 wipes across the coupons. Once all coupons were cleaned, they were allowed to air dry for approximately 1 hour. After that hour, final cleaned weights were recorded. 

Trial Results:

Cleaner Dilution Substrate Initial wt of cont. Final wt of cont. %Cont Removed % AVG % Overall
Augeo Clean Multi 1% Painted Metal  0.1989 0.1227 38.31 76.08 82.81
0.1964 0.0001 99.95
0.3555 0.0356 89.99
5% Painted Metal  0.1998 0.0376 81.18 85.30
0.2106 0.0201 90.46
0.2855 0.0449 84.27
10% Painted Metal  0.4114 0.0885 78.49 87.05
0.5882 0.0519 91.18
0.5599 0.0476 91.50
Calsolv DPNB 1% Painted Metal  0.3511 0.0305 91.31 93.24 90.78
0.2846 0.0147 94.83
0.4034 0.0259 93.58
5% Painted Metal  0.3384 0.0681 79.88 87.76
0.5048 0.0335 93.36
0.4647 0.0463 90.04
10% Painted Metal  0.4968 0.0466 90.67 91.35
0.4602 0.0336 92.70
0.4826 0.0448 90.72

Success Rating:

Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.

Conclusion:

The Augeo Clean Multi Cleaner's average cleaning efficiency increased as the dilution increased with 76% at a 1% dilution, 85% at a 5% dilution, and 87% at a 10% dilution. Calsolv DPNB's average cleaning efficiency was inconsistent in regard to the dilution increase with the efficiency going down from 93% to 87% at a 5% dilution and back up to 91% at a 10% dilution, but still not as high as the original 93% at a 1% dilution. Overall, Calsolv DPNB had a higher cleaning efficiency average of 90% compared to Augeo Clean Multi's cleaning efficiency of 82%. Therefore, Calsolv DPNB was more effective in the removal of Hucker's soil from painted metal.   

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