Failing gas tank sealant

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Question: How effective are pencil-style fuel screens when your gas tank sealant is failing and shedding flakes? (see attachment of screen)

Situation: My gas tank was boiled and sealed less than ten years ago. This was a competent job by a well-known local shop. But, ethanol has done its work, causing the sealant to shed in large chunks. I tried to rinse it out with clean gas, but 1/4" flakes are still coming out.

This is my first time using such a fuel screen.

Will the fuel screen clog up? Will I need another gas tank boil, or will the screen stay relatively clear and functional for years to come?