A friend of mine has a 75 foot yacht, and he has rolled and brushed his
hull, but only in a touch up situation, between, complete paint jobs,
and you most certainly can see the difference!!
I have never seen, or heard of a roll and brush, paint job, being "show"
material.
Unless of course the person crazy enough to do this wacky paint
application, sits there and busts his butt, wet sanding and buffing the
lumpy finish.
And then the window of wet sanding and rubbing this urethane boat paint
is very short, because it becomes almost unsandable,after about2 days,
for 1500 or 2000 paper, and the buffer will be blowing smoke out of it's
vents trying to cut the paint.
If one is going to even attempt to lay a half way decent paint job, on
anything, spray is the only way, and a professional respirator is
required------no exceptions!!

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Terry 85 GL