How many coats of undercoat?

[mazdaq]

I'm going to paint some woodwork with oil-based eggshell. I've used it before and put 1 coat of undercoat on before 2 coats of the eggshell. But I've seen quite a few people say they put 2 coats of undercoat on and then 1 top coat.

Is that method preferable? And if so, why? Thanks.

 

[Gobo]

I'd personally knot treat it then undercoat once then overcoat twice like you said you did before. If you were using a one coat paint, two undercoats would give a better base for the one coat to work.

Gobz.

 

[LJW61]

Eggshell does not require undercoat, treat the knots then prime followed by 2 coats of eggshell.

 

[mazdaq]

Excellent, thanks. Good thing I asked!