Prior to dipping the brush into a finish I precondition the brush by
dipping the bristles up to the ferrule in the proper solvent. Stops
the paint from drying near the ferrule making it stiff and helps a lot
in cleaning.

On Sun, 11 Sep 2005 21:11:25 GMT, "George E. Cawthon"
wrote:

Why? probably because I get tired and paint
slower, but mostly likely because the paint is
drying and clogging the brush.