Trial Purpose:
To evaluate semi-aqueous products on the first supplied lubricant.
Date Run:
05/15/2007Experiment Procedure:
Three products from the previous trial were retested at 10% dilutions. In addition, six non-aqueous products were selected from the lab's on-line database, www.cleanersolutions.org based on client supplied information and past product performance. One product was diluted to with DI water to 10% in 600 ml beakers. The other five products were used at full strength. The cleaning solutions were all heated to 130 F on a hot plate.
Twenty-seven preweighed alloy coupons were coated with the first supplied lubricant and weighed a second time to determine the amount of contaminant added to each coupon. Three coupons were immersed into each solution and cleaned for 5 minutes using stir-bar agitation. Coupons were rinsed in room temperature tap water for 15 seconds and air dried using compressed dry air for 30 seconds. A final weight was recorded and efficiencies were calculated for each coupon cleaned.
Trial Results:
All five products used at full strength removed over 75% of the lubricant. Three of these removed over 93% and one of these (Solsafe 245) removed over 97%. The three products from the previous trial did not improve with an increase in concentration from 5 to 10%. The table below lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
| Cleaner | Initial wt | Final wt | % Removed |
| Micro 90 | 1.1948 | 0.6216 | 47.97 |
| 1.1926 | 0.7440 | 37.62 | |
| 1.1380 | 0.6954 | 38.89 | |
| Ionox HC 2 | 1.2543 | 0.8456 | 32.58 |
| 1.0725 | 0.7665 | 28.53 | |
| 1.5243 | 0.5292 | 65.28 | |
| Aquavantage 1400 | 1.0483 | 0.6334 | 39.58 |
| 1.2284 | 0.7234 | 41.11 | |
| 1.0922 | 1.0026 | 8.20 | |
| SC Supersolve | 1.8746 | 1.1165 | 40.44 |
| 1.5725 | 0.9734 | 38.10 | |
| 1.6190 | 1.0192 | 37.05 | |
| Soy Gold 1100 | 0.9363 | 0.1518 | 83.79 |
| 1.2886 | 0.1782 | 86.17 | |
| 1.3318 | 0.2678 | 79.89 | |
| Solsafe 245 | 1.2694 | 0.0235 | 98.15 |
| 1.6363 | 0.0286 | 98.25 | |
| 1.5927 | 0.0427 | 97.32 | |
| Shopmaster RC | 1.5022 | 0.0866 | 94.24 |
| 1.9648 | 0.1115 | 94.33 | |
| 1.6057 | 0.1166 | 92.74 | |
| DS 108 | 1.4618 | 0.4115 | 71.85 |
| 1.1213 | 0.1799 | 83.96 | |
| 1.2780 | 0.3799 | 70.27 | |
| D Greeze 500 LO | 1.3857 | 0.0932 | 93.27 |
| 1.2617 | 0.0827 | 93.45 | |
| 1.2530 | 0.0673 | 94.63 |
Success Rating:
Results suggest a scale-up feasible match for cleaning chemistry and equipment. Pilot plant study with actual parts recommended.Conclusion:
The five semi-aqueous products will be evaluated for the cleaning of the second supplied contaminant under similar conditions.
