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Trial Number 0

Trial Purpose:

Preliminary lift test

Date Run:

02/01/1996

Experiment 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.

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