Trial Purpose:
Preliminary lift test
Date Run:
02/01/1996Experiment Procedure:
The purpose of this test is to perform a preliminary lift test for Coatings Manufacturer to get a basic idea of solvent action on the two Durane coatings.
Five different chemistries were tested at concentrated levels. 10 Coupons were contaminated, five with the #51072 Coating, and 5 with the #51144 Coating, setting time was a maximum of fifteen minutes. The chemistries were allowed 30 minutes to react with the coatings and then a visual observation was made on the chemistries' effectiveness.
SUBSTRATE MATERIAL: 304 stainless steel coupons
CONTAMINANTS: Durane Based Coatings, #51144 & #51072
CONTAMINATING PROCESS USED: Coatings applied to swab
Trial Results:
Chemistries were rated on a scale of 1 to 5 on each coating with 1 being the best performer, and 5 being the worst. The results are shown in the table below:
| Chemistry | #51072 Coating | #51144 Coating | Notes & Observations |
| Terpene Tech 85B | 2 | 4 | Dissolving mechanism |
| U.S. Polychem 69 MC | 3 | 1 | Lift & Dissolve mechanisms |
| Frederick Gumm 228-D | 1 | 3 | Lift & Dissolve mechanism |
| Sentry Chem. Safe Strip | 4 | 2 | Dissolving mechanism |
| Inland Tech EP 921 | 4 | 5 | Dissolving mechanism |
Success Rating:
Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.Conclusion:
In this brief test The U.S. Polychem and the Frederick Gumm chemicals performed best.
