On Jan 25, 3:09 pm, "Robert11" wrote:
Hello:

Not too sharp in the painting area.

Regarding Paint Primers:

Are there general rules of thumb for when, and where, paint primer should be
used before applying the regular paint ?
Interested in both interior and exterior.

Would the answers be different for oil vs latex paints ?

Guess I should also ask if there are times when it should not be utilized ?

Thanks,
Bob

it used to be for bare materials , that it was one or two primer coats
, undercoat , then finish coats .

for previously painted surfaces ,when changing colors one undercoat
and two finish coats .

primers provide better adhesion to raw surfaces than the undercoat ,
and may be better at filling / sealing wood surfaces .