Trial Purpose:
To evaluate supplied product (Quicksolv DMC) for grease soil removal from copper coupons.
Date Run:
05/30/2017Experiment 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).
