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Trial #1

Trial #1

The purpose of this experiment was to use unheated immersion to identify the hardest buffing compound to remove of the three compounds (Red Buffing, White Buffing, and Blue Buffing) using the cleaners Dimethyl glutarate and Metalnox 6386.

2020

28

2

25

26

Coupon

06/18/2020

5.00

Immersion/Soak

Alicia McCarthy
Hayley Byra

Aluminum

Buffing/Polishing Compounds

None

Air dry

Gravimetric
Visual

All three soils were tested with each of the two cleaners: Dimethyl glutarate (100% concentration) and Metalnox 6386 (100% concentration). Three aluminum coupons were obtained and weighed for each of the soils, for a total of nine coupons per cleaner. Coupons were soiled with the respective buffing compounds; Red Buffing, White Buffing, or Blue Buffing, and a soiled weight was obtained. Coupons were then submerged into 200mL of their respective cleaners for 5 minutes at room temperature. After 5 minutes, coupons were air-dried, and a final clean weight was obtained. Effectiveness of the cleaners and difficulty of removal was determined.

Cleaner Contaminant Initial wt of cont. Final wt of cont. % Cont. Removed % AVG per soil % AVG Total
Dimethyl glutarate Red Buffing Compound 0.0092 0.0094 -2.174 32.36 44.93%
0.012 0.0092 23.33
0.0108 0.0026 75.926
White Buffing Compound 0.0039 0.0042 -7.693 9.99
0.0055 0.005 9.091
0.0056 0.004 28.571
Blue Buffing Compound 0.0241 0.0035 85.477 92.43
0.0749 0.0057 92.39
0.0846 0.0005 99.409
Metalnox 6386 Red Buffing Compound 0.0154 0.0013 91.558 96.8 91.23%
0.0216 0.0008 96.296
0.0315 -0.0008 102.54
White Buffing Compound 0.0085 0.0036 57.647 75.83
0.008 0.0031 61.25
0.0093 -0.0008 108.602
Blue Buffing Compound 0.0268 0.0006 97.761 101.07
0.0465 0.0013 97.204
0.0437 -0.0036 108.238

The White Buffing compound was the most difficult to remove for both cleaners (9.99% from Dimethyl glutarate and 75.83% from Metalnox 6386). Metalnox 6386 was the more effective cleaner overall in removing all three buffing compounds from aluminum substrates (91.23% removal total average).

No relation

Name Class Section
Document Evaluation #0 Evaluation 3
Document Evaluation #1 Evaluation 3
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