Trial Purpose:
To eliminate the use of N-Propyl Bromide in cleaning opereations
Date Run:
02/29/2016Experiment Procedure:
Four cleaners and water were tested at room temperature on aluminum, brass, and stainless-steel coupons to evaluate how the soil Water Soluble Coolant was cleaned. Preweighed coupons were coated with the supplied water-soluble coolant using a handheld swab and weighed a second time to determine the amount of soil added. Each cleaner was put in a beaker and three coupons were immersed into the solution for 5 minutes. The coupons were then stood upright to sir dry for 15 minutes and then placed on a tray. There was no rinse. Once dry, final weights were measured and efficiency calculated for each coupon cleaned.
Trial Results:
| Cleaner | Substrate | Initial Wt. | Final Wt. | % Removed |
| Fluosolv CX | Aluminum | 21.5772 | 21.5739 | 100.00 |
| Aluminum | 21.5349 | 21.5378 | 99.10 | |
| Aluminum | 21.6684 | 21.6696 | 99.45 | |
| Brass | 69.4517 | 69.4550 | 98.95 | |
| Brass | 69.6130 | 69.6169 | 98.75 | |
| Brass | 69.5385 | 69.5414 | 98.87 | |
| Stainless | 63.8961 | 63.9071 | 96.27 | |
| Stainless | 63.8697 | 63.8800 | 96.00 | |
| Stainless | 60.1002 | 60.1027 | 98.86 | |
| Fluosolv NC | Aluminum | 21.1991 | 21.1999 | 99.58 |
| Aluminum | 21.0506 | 21.0582 | 96.38 | |
| Aluminum | 21.1746 | 21.1748 | 99.89 | |
| Brass | 49.5343 | 49.5343 | 100.00 | |
| Brass | 69.3302 | 69.3311 | 99.54 | |
| Brass | 69.4374 | 69.4378 | 99.83 | |
| Stainless | 59.1227 | 59.1229 | 99.91 | |
| Stainless | 59.5738 | 59.5769 | 98.45 | |
| Stainless | 63.9180 | 63.9203 | 99.02 | |
| Honeywell PF | Aluminum | 21.4827 | 21.4858 | 98.63 |
| Aluminum | 21.6229 | 21.6266 | 98.73 | |
| Aluminum | 21.5751 | 21.5774 | 99.14 | |
| Brass | 49.4182 | 49.4233 | 98.66 | |
| Brass | 49.5324 | 49.5373 | 98.52 | |
| Brass | 49.4790 | 49.4839 | 98.03 | |
| Stainless | 58.9560 | 58.9729 | 94.72 | |
| Stainless | 58.9477 | 58.9590 | 95.65 | |
| Stainless | 61.8864 | 61.8946 | 96.47 | |
| Honeywell PF-2A | Aluminum | 21.4982 | 21.4984 | 99.91 |
| Aluminum | 21.0955 | 21.0965 | 99.57 | |
| Aluminum | 21.6888 | 21.6899 | 99.39 | |
| Brass | 69.4463 | 69.4497 | 98.83 | |
| Brass | 49.5428 | 49.5449 | 98.87 | |
| Brass | 49.4977 | 49.4996 | 99.27 | |
| Stainless | 59.5287 | 59.5315 | 98.84 | |
| Stainless | 63.8418 | 63.8866 | 83.21 | |
| Stainless | 63.8993 | 63.8914 | 100.00 | |
| Water | Aluminum | 21.4546 | 21.4588 | 98.63 |
| Aluminum | 21.5363 | 21.5391 | 99.17 | |
| Aluminum | 21.4912 | 21.4962 | 98.46 | |
| Brass | 49.5400 | 49.5442 | 98.79 | |
| Brass | 49.5310 | 49.5340 | 99.00 | |
| Brass | 49.5260 | 49.5291 | 99.25 | |
| Stainless | 60.9681 | 60.9729 | 98.60 | |
| Stainless | 59.0497 | 59.0526 | 98.99 | |
| Stainless | 62.9084 | 62.9395 | 87.19 |
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 five chemistries evaluated efficiently removed the water-soluble coolant from all three types of substrates. Although Solstice 2A quantitatively was the least efficient, there was more visible soil on the coupons cleaned with water. Water would be classified as the least efficient cleaner despite quantitative evidence. Interactions with stainless substrate removed less soil than other substrates. The most efficient cleaner would be the Fluosolv NC with 99.17% efficiency. All chemistries were successful cleaners.
