Trial Purpose:
To evaluate products on a second contaminant
Date Run:
07/22/2004Experiment Procedure:
Three products were selected from the previous trial. All products were used as received from the client in 400 ml beakers. All three products were heated to 120 F on a hot plate. Nine preweighed aluminum coupons were coated with client supplied coating, Castrol Industries Rustilo DW 924 (64742-88-7, 64742-95-6, 64741-89-5, 64741-97-5, 64742-53-6, 95-63-6), using a hand held swab and then weighed a second time to determine the amount of soil added. Three coupons were cleaned in each solution for 5 minutes using stir-bar agitation. Coupons were rinsed in tap water for 15 seconds at 120 F, followed by air blow off at room temperature. Once dry, coupons were weighed a final time and efficiencies for each cleaner were calculated.
Trial Results:
The same two products that damaged the coupons in the previous trial also caused problems in this trial. The Alkalume removed nearly all of the coating, removing over 99.9%. 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 |
| Ro-Prepp R | 0.166 | -0.0264 | 115.9 |
| Cleppo 587A | 0.2282 | -0.0115 | 105.04 |
| Alkalume LN | 0.1651 | 0.0014 | 99.15 |
| 0.1885 | -0.0004 | 100.21 | |
| 0.2597 | -0.0009 | 100.35 |
Success Rating:
A follow up test, usually based on company input.Conclusion:
Only the Alkalume will be tested on the third soil.
