holes in hull
 

what is a good product to use to permently seal up some small holes i have in the transome on the outside below the water line> i have holes there from previous transducers and some other junk that was there

Either glass it or if they are small ones then use 5200, make sure after you fill the holes then run water over them from the outside.
5200 is make to cure in water so adding water to it after you fill the holes accelerates the hardening.

I drill out the holes slightly bigger than current to remove any sealant or heaven forbid silicone someone might have added and expose good clean wood/glass. Then I use epoxy with thickener added... if you don't want to mix epoxy get some marinetex
Whatever you use, a toothpick works well to work it in to the back of the hole.
http://www.google.com/aclk?sa=l&ai=C...rd%3Dmarinetex

I've been using Marine Tex for years. Used it for everything from fixing a swimming pool filter housing to filling holes in a drill press table (don't ask) to filling holes in several boat transoms. Works great, never let me down.

hmmm, didn't know 5200 cured faster when wet'ed. That stuff always seemed to take forever to cure...

Pretty much what everyone else said. 5200 is a quick and easy fix, but marinetex is better and you can sand and paint it for a better looking fix.

rkc

Gel Coat and filler shoved in the hole and wax paper pressed over it. Light sand after and it should blend right in.

-Svence