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Trial Number 2

Trial Purpose:

To evaluate two supplied cleaning products for removal of listed contaminants

Date Run:

03/21/2000

Experiment Procedure:

One product was used directly from the bottle and the second was diluted to 5% using DI water in 600 ml beakers. Both solutions were evaluated at room temperature for five minutes of soaking. Three coupons per contaminant were cleaned and then rinsed for 30 seconds at room temperature. Coupons were dried for two hours at room temperature. Gravimetric analysis was performed to determine percent removal of the contaminants.

SUBSTRATE MATERIAL: Aluminum 202-2024 T-3, Brass, Stainless Steel 202-174-68-HR, Ceramic Coupons
CONTAMINANTS: The contaminants used are listed in Table 1.

Table 1. Contaminants

Class Name CAS #
OIL Citgo NC 400 64741-89-5, 8052-42-4
INK Steel Blue 67-63-0, 108-88-3, 9004-70-0 , 109-60-4, 141-78-6, 64-17-5
GREASE KSL-111 64742-47-8, 8052-42-4
LUB Keystone423 64742-57-0, 64742-62-7

Trial Results:

One product was used directly from the bottle and the second was diluted to 5% using DI water in 600 ml beakers.
Both solutions were evaluated at room temperature for five minutes of soaking. Three coupons per contaminant were cleaned and then rinsed for 30 seconds at room temperature. Coupons were dried for two hours at room temperature. Gravimetric analysis was performed to determine percent removal of the contaminants.

Table 3. Cleaning Effectiveness

Product
Drummand American Keynote Drummand American Clout
Cont/Sub AL-LUB CE-OIL SS-INK AL-GR AL-GR CE-OIL BR-INK SS-LUB
Coupon 1 99.26 99.33 0.07 99.67 98.9 99.61 8.81 96.71
Coupon 2 99.21 99.53 16.8 99.95 98.86 99.86 7.32 95.24
Coupon 3 99.58 99.79 5.34 99.79 98.87 99.5 9.73 97.65
Average 99.35 99.55 7.4 99.8 98.88 99.66 8.62 96.53

Success Rating:

A follow up test, usually based on company input.

Conclusion:

Both Keynote and Clout had excellent removal of the oil, lubricant and grease but had equal difficulty in cleaning the ink.

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