MGA - fender piping

["Cordell, Ralph PhD" <rzc4@cdc.gov>]

I've got the both rear and the left front fenders my MGA and am
concerned about the piping.  It seems to me that the seams are great
places for water to seep in and cause rust. Is there any way to prevent
this? I am thinking about shooting a light coat of clear coat along the
seams (I'm using a base coat/clear coat system) and wondered about the
collective experience/thoughts of the group on this one. 

ralph cordell

'59 MGA
'84 Turbo Regal
'87 Grand National
'96 Roadmonster