"efgh" wrote in message
news:ZFHTi.47565$%B2.3334@edtnps82...

My method once sanding is complete is to put the shellac on the knots,
sand lightly with 220 grit, then apply latex primer, sand again lightly
with 220 grit, then apply latex paint.

Is this an interior or exterior application?
In either instance I would start by switching to an alkyd primer over
the shellac.
If it's an interior application I always use an alkyd enamel.

--
NuWave Dave in Houston