Painting a knotty pine internal door

[Agent L]

I needed an internal bi-fold door in a bit of a rush so arriving tomorrow from Wickes is the only thing I could find in the right size. They only did knotty pine rather than clear and didn't do the size I need in moulded.

It states on the website that the door will arrive 'ready to paint' but I have concerns that any residual sap in the knots will eventually seep through the paint and ruin the look of it.

If I wanted to seal the knots what should I use? Anyone got a product they recommend? Whilst I’ve never done it before I’ve heard of these things not working quite as advertised.

[Green Fly]

My recommendation is Zinsser B.I.N, it is a primer sealer. Available from Homebase and other DIY outlets.

[Blakeatron]

There is a producst called knotting - brush it on the knots, let it dry then prime and paint door as normal.

[Wings]

Blakeatron said:

There is a producst called knotting - brush it on the knots, let it dry then prime and paint door as normal.

^^^^get knotting.

[creasede]

knotting solution! its shellac based so the sap cant penetrate through! i hate knots!

also...google shellac! beetle sh!t thats crushed up and used on all sorts...including smarties!!

ETA : http://en.wikipedia.org/wiki/Shellac

Edited by creasede on Wednesday 12th October 19:22

[spikeyhead]

there's an organisation dedicated to help you, They probably have a local branch for you to call.

this lot

[creasede]

spikeyhead said:

there's an organisation dedicated to help you, They probably have a local branch for you to call.

this lot

i am worried as to how one knows about this! care to share?

[Agent L]

Thanks all. Homebase is local to me so will have a look in there, anything I can find that is shellac based I will give a go.

Edited by Agent L on Thursday 13th October 13:24

[Urban Sports]

I wish I had sorted the knots on mine I have around 10 undercoated and then glossed all of which need regular maintenance why I really CBA most of the time

[Agent L]

Unfortunately that's how I knew to do it in the first place. I replaced the ballasters on the stairs a couple of years ago and all of them now have faint brown marks showing through. Don't want that to happen again on this door.