Solving the dreaded fuel line leaks

[Diamond_Don]

I saw this information on some old fuel pump installation instructions. It talks about a "teflon tape" treatment from the manufacturer. Does anyone know more about this treatment? Is there modern day process that accomplishes the same thing, and no, I'm not talking about plumber's tape here.

Right now, after re-seating many times, I have resorted to tightening my fittings way too hard. I feel something is going to give...

Thanks