Trial Purpose:
Test the effectiveness of Stasol ESS 160 against Toluene on adhesives.
Date Run:
05/10/2022Experiment Procedure:
Twelve pre-weighed stainless steel coupons, two for each adhesive, were soiled for each contaminant tested. Approximately 0.25 g of the soil was applied using a hand held swab. Each set of coupons were manually wiped with a cloth of the same material, one dipped into unheated Sta-Sol® ESS 160 100% and another in Toluene. During this process, any noticeable soil removal was observed and recorded. Coupons were allowed were wiped with a paper towel to ensure no residue of the cleaner, and afterwards final weights were recorded. The efficiency of removal was calculated for each coupon cleaned.
Trial Results:
Stasol struggled to remove the adhesive AC-059. Although it was almost as effective as Toluene at removing AC-054 and minorly more effective at removing AC-163, it overall was less effective than Toluene.
| Cleaner | Substrate/Contaminant | Initial wt of cont. | Final wt of cont. | %Cont Removed | Average % Removal | Overall % Removal |
| Stasol 100% | AC-059 (Phenolic) | 0.2310 | 0.1681 | 27.23 | 26.13 | 63.39 |
| 0.3808 | 0.2855 | 25.03 | ||||
| AC-054 (Silicone) | 0.2709 | 0.0372 | 86.27 | 90.03 | ||
| 0.2546 | 0.0158 | 93.79 | ||||
| AC-163 (Acrylic) | 0.2465 | 0.0701 | 71.56 | 74.01 | ||
| 0.2638 | 0.0621 | 76.46 | ||||
| Toluene 100% | AC-059 (Phenolic) | 0.4260 | 0.0036 | 99.15 | 98.95 | 87.51 |
| 0.5393 | 0.0068 | 98.74 | ||||
| AC-054 (Silicone) | 0.2207 | 0.0281 | 87.27 | 91.60 | ||
| 0.3302 | 0.0134 | 95.94 | ||||
| AC-163 (Acrylic) | 0.2504 | 0.1063 | 57.55 | 71.98 | ||
| 0.2341 | 0.0318 | 86.42 |
Success Rating:
Test showed little or no promise.Conclusion:
Stasol ESS 160 was not on par with Toluene for adhesive removal and is considered a non-ideal replacement. The next trial(s) will test a list of HSPiP solvents for their effectiveness against the adhesives provided and narrow down possible replacements for Toluene.
