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Trial Number 0

Client Number 423

Project Number 1

Trial Purpose:

To evaluate supplied product (Quicksolv DMC) for grease soil removal from copper coupons.

Date Run:

05/30/2017

Experiment Procedure:

The following experimental procedure followed TURI’s cleaning standard for grease soil removal with the manual SLW machine.  

Soiling Process:

A set of pre-weighed copper coupons were soiled with 0.5 grams of multi-purpose super white grease soil using a hand held swab. Another set of pre-weighed copper coupons were soiled with 0.5 grams of wax blend using a hand held swab. The wax blend is made from a blend of polybutene oil 50%, and BE Square 50%. After soiling the coupons with the respective soils, each coupon was re-weighed for the amount of contaminants added.

Cleaning Process:

Three copper coupons soiled with the same soil 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 of cleaning solution. Each coupon was sprayed once with the same cleaning solution. Each cleaning solution was used at full concentration. The solution was allowed to penetrate/contact for 30 seconds followed by cleaning in the SLW unit for 20 cycles (~33 seconds). 

Efficacy Rating Process:

After cleaning, the coupons were left to sit at room temperature for 1 hour before re-weighing the coupons for the amount of contaminants removed. The efficacy of a cleaner is measured by the amount of contaminated removed using gravimetric analysis. As a general rule of the lab, an effective cleaner is observed to have an efficacy rating of 85% or higher.

Chemistries Evaluated:       Quicksolv DMC; Acetone

Trial Results:

The sample cleaner (Quicksolv DMC) was observed to be just as effective as the comparative cleaner (acetone) when removing multi-purpose super white grease soil from copper coupons: with respective efficacy ratings of: 90.56% and 86.77%. Similarly, the sample cleaner (Quicksolv DMC) was observed to be just as effective as the comparative cleaner (acetone) when removing wax blend soil from copper coupons: with respective efficacy ratings of 19.33% as compared to 14.55%.

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

Initial wt. of Cont. (g) Final wt. of Cont. (g) Cont. Removed (%) Avg. Cont. Removed (%) Avg. Efficacy (%) 
0.4965 0.0288 94.2 90.56

54.95

Quicksolv DMC
0.5008 0.0276 94.49
0.4955 0.0843 82.99
0.501 0.3967 20.82 19.67
0.4992 0.3958 20.71
0.4733 0.3906 17.47
0.5166 0.3756 27.29 19
0.4973 0.3934 20.89
0.5189 0.4732 8.81
0.4982 0.0562 88.72 86.77

50.66

Acetone
0.4982 0.0643 87.09
0.5036 0.0781 84.49
0.5041 0.4684 7.08 14.87
0.4987 0.3552 28.77
0.4932 0.4501 8.74
0.5051 0.4879 3.41 14.24
0.5056 0.3278 35.17
0.4983 0.4776 4.15

*Note that there are two trials for cleaning the wax blend soil because the first trial was observed to have a high standard deviation. Therefore, a second trial was conducted to verify the results of the first trial. There is no significant difference between the first and second trial runs.

Success Rating:

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

Conclusion:

In conclusion, the sampled cleaner (Quicksolv DMC) was just as effective as the comparative cleaner (acetone) for removal of both soils (white grease and wax blend).

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