Knot Seal and Prime wood before painting walls - why not?

[jonwestuk]

A quick question if I may. I am renovating my house. For reasons that it is not worth mentioning, I would like to do the preparation of the woodwork (sills and architrave) prior to painting the walls. Can anyone tell me reasons why I should not knot seal and prime the wood prior painting the walls?

I should note that I will still be putting undercoat onto the wood after the walls are painted.

 

[dcdec]

Its fine, the only thing is you may have to rub down the skirting again as some spray from the roller will land on them. This may create a few bare spots but you can spot prime these bear areas if needed.

 

[jonwestuk]

Its fine, the only thing is you may have to rub down the skirting again as some spray from the roller will land on them. This may create a few bare spots but you can spot prime these bear areas if needed.

Cool, the skirting isn't on yet as I was saving that for after it is painted. If is just spotting that I need to worry about then I think I can manage.