For Rudders and Center Boards, the safer way to do it. Yes there is
an easier and less noxious way to do it. I like to use lead shot, the
same stuff that's used in shotgun shells. The way it's done is very
easy and involves no dangerous handling of hot lead. Because the shot
is a bit
lighter you need to cut the hole a bit bigger, screw a few stainless
screws into the sides of the hole to help anchor the weight in place,
then screw a cover plate with a plastic sheet between the board and
the plate, flip it over and fill the hole up with the lead shot, then
mix up epoxy and poor it into the hole on top of the shot. Fill it up
with epoxy and stop just before it starts to overflow at the edges.
When cured you can take the cover plate off and sand both sides flush
and the jobs done, no fumes, no gas needed, no burnt edges around the
hot lead. Just a neat weight and no fuss. One point to add, try to use
sized shot you can find, that way you get more lead in the hole. If
you use large diameter shot you will have more epoxy and less lead.