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Trial Number 19

Client Number 318

Project Number 1

Trial Purpose:

To evaluate the supplied product for car wheel dirt removal from aluminum, ceramic, and plastic surfaces following GS 35 methodology.

Date Run:

05/02/2018

Experiment Procedure:

Supplied products were diluted to a concentration of 4oz of cleaners to 1 gallon of tap water at room temperature. Pre-weighed aluminum and plastic coupons were soiled with 0.5 grams of vehicle dirt contaminant (Bike Dirt Soil: 16% w/w, Super White Multi-Purpose Lithium Grease: 45% w/w, and Used Motor Oil 39% w/w) using a hand held swab. Once dirtied, the aluminum ceramic and plastic coupons were re-weighed again to obtain initial weights of the contaminants. Three of the same type of coupons were placed into a Gardner Straight Line Washability unit. A Wypall X60 reinforced wipe was attached to the cleaning sled and soaked with 1 spray cleaning solutions. Each coupon was sprayed once with the same cleaning solution. The solution was allowed to penetrate for 30 seconds followed by cleaning in the SLW unit for 20 cycles (~33 seconds). The cleaned coupons dried for one hour before taking the final weights. 

Trial Results:

Cleaner Substrate Initial wt. of Cont. (g) Final wt. of Cont. (g) Cont. Removed (%) Avg. Cont. Removed (%) Overall Avg. Cont. Removed (%)
Alpha Chemical Wheel Guard 1 Aluminum 20.8001 21.291 93.46 91.97 91.91
20.7845 21.2712 90.88
22.1642 22.6767 91.57
Ceramic 52.1519 52.63 95.08 93.59
52.3698 52.8572 97.11
50.9381 51.4199 88.56
Plastic 32.4343 32.909 100.11 90.16
33.9744 34.453 84.75
34.0865 34.6545 85.63
Alpha Chemical Wheel Guard 2 Aluminum 21.9978 22.4872 89.11 88.83 86.40
22.167 22.6957 88.56
22.0611 22.5401 88.81
Ceramic 51.7117 52.2094 82.86 78.37
52.6866 53.1845 77.57
54.217 54.6937 74.68
Plastic 34.3233 34.867 91.21 92.00
34.119 34.6208 90.16
32.2588 32.7758 94.64
Alpha Chemical Wheel Guard 3 Aluminum 22.1491 22.6819 95.76 95.42 92.82
22.1552 22.6811 94.56
21.9527 22.4804 95.94
Ceramic 51.9448 52.4516 85.73 89.52
52.1225 52.6188 91.72
52.156 52.6345 91.12
Plastic 34.1453 34.6946 91.23 93.52
34.1558 34.694 93.20
34.1594 34.6178 96.14

For the most part, there was very little difference in effectiveness between Chemical Wheel Guards 1 and 3, however Wheel Guard 2 left noticeably more residue visually and was roughly 6% less effective than the other two formulations. Despite this, it was still effective at removing the contaminant in every case but on Ceramics. In order of effectiveness, Wheel Guard 1 was the most consistent, with Wheel Guard 3 coming right behind it.

Success Rating:

Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

Conclusion:

All three cleaners were effective in removing the contaminants from the coupons. 

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