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Trial Number 1

Trial Purpose:

To evaluate the effectiveness of the supplied cleaners with removing DCC-17 soil from painted steel and vinyl composite tiles

Date Run:

10/02/2017

Experiment Procedure:

A total of 12 coupons composed of six painted steel coupons and six painted vinyl composite tiles were aged in an oven for 24 hours. Initial weights were taken of these coupons using an analytical balance after the aging process. Initial color readings of L* and G* were measured using a glossimeter. The coupons were then soiled with half a gram of DCC-17 soil and allowed to age overnight. The following day dirty color readings were taken of the soiled coupons. The soiled coupons were weighed in order to determine the amount of soil applied. A set of three painted steel coupons were placed on the Gardner straight line washability unit. A Kimberly Clark Wypal reinforced paper towel was attached to the cleaning sled. The sled and coupons were each sprayed once with cleaning solution. The machine was then run for 20 cycles. This process was repeated for the remaining sets of painted steel and painted vinyl composite tiles with their respective cleaners. The coupons were allowed to dry overnight before taking clean color values and clean weights.

The ability of the cleaners to lift the soil from the surface, percent detergency, was determined by taking the ratio of the reflectance values as shown below:
%det⁡ = ((L_Clean-L_Dirty ))/((L_Initial-L_Dirty ) )*100%

Trial Results:

Table pertaining to the amount of contaminant added and removed using a gravimetric scale to measure the efficacy of the respective cleaners.

Cleaner Coupon Type Initial wt. of cont. Final wt. of cont. Cont. Removed (%) Avg. Cont. Removed (%) Overall Cont. Removed (%)
Neutral Floor Cleaner Painted Steel 0.2465 0.0038 98.46 96.61 94.88
0.3316 0.0150 95.48
0.3642 0.0150 95.88
Painted VCT 0.3312 0.0234 92.93 93.15
0.3279 0.0228 93.05
0.3243 0.0212 93.46
Zep Neutral Floor Cleaner Painted Steel 0.3170 0.0256 91.92 94.3 93.6
0.3367 0.0150 95.54
0.3362 0.0154 95.42
Painted VCT 0.3362 0.0262 92.21 92.9
0.3432 0.0233 93.21
0.3434 0.0231 93.27

Color Gloss Meter Results:

Cleaner Substrate Initial G Initial L Dirty G Dirty L Clean G Clean L % Detergency Avg. % Detergency
Neutral Floor Cleaner Painted Steel 3.0 87.12 5.3 46.87 33.1 71.03 60.02 74.37
4.7 96.23 4.1 33.94 35.1 73.79 63.97
3.9 84.65 7.2 24.48 41.8 71.12 77.51
Painted VCT 76.2 89.87 8.4 28.37 13.0 77.51 79.9
74.6 89.89 11.0 29.46 24.5 80.04 83.7
86.0 89.89 10.6 25.58 15.4 77.75 81.12
Zep Neutral Floor Cleaner Painted Steel 4.0 86.58 15.9 26.2 18.5 71.76 75.46 80.52
77.8 89.76 6.3 23.37 16.5 75.84 79.03
87.1 90.10 8.8 25.38 18.5 77.94 81.34
Painted VCT 82.8 89.97 10.4 24.24 9.4 77.2 80.57
63.3 88.62 14.8 24.93 10.3 79.01 84.91
79.9 90.11 13.0 23.88 17.6 78.08 81.84

Success Rating:

A follow up test, usually based on company input.

Conclusion:

Heavy-Duty All Purpose Cleaner was as equal to or better than Spartan Tribase Multipurpose cleaner at removing DCC-17 from painted steel and vinyl.

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