evap leak

are there any products that will fix this?
Im faced with compressor replacement and evap leak.
Got a nice,tested low miles compressor but the evap
leak may queer the deal.
I remember a product many years ago that worked for evap
leaks,you had to remove the lines going into evap and introduce
the loctite type stuff and pressurize lightly for product
to set up.
On a car that this hard to replace an evap core its worth a shot.
any input on this?