Knots in Door Linings

[Tryingit]

Hi all. I have some new door linings to paint, they are quite knotty so I know I'll need to treat the knots. Some of the knots are quite rough and pitted. I'm reading conflicting advice that I should prime first and then fill in any imperfections in the knots before sanding and painting, and others saying to fill the knots first then prime. Help?! Thanks

 

[michealangelo]

Hi all. I have some new door linings to paint, they are quite knotty so I know I'll need to treat the knots. Some of the knots are quite rough and pitted. I'm reading conflicting advice that I should prime first and then fill in any imperfections in the knots before sanding and painting, and others saying to fill the knots first then prime. Help?! Thanks

Knot x2 coats first to fully seal in the resin from forming

Then prime

Then fill

KPS is the city and guilds rule ...

Knot
Prime
Stop ️

 

[foxhole]

Liberon Pale Wood Knotting Solution

 

[Tryingit]

Thank you. Would the filler need priming afterwards or ok to use normal wood paint? I have bought Ronsel Knot Stop, do you think this will be ok to prime the knots rather than a knotting solution? Thanks

 

[michealangelo]

Thank you. Would the filler need priming afterwards or ok to use normal wood paint? I have bought Ronsel Knot Stop, do you think this will be ok to prime the knots rather than a knotting solution? Thanks

Always prime a new surface ......in this case your filler , then

 

[michealangelo]

Thank you. Would the filler need priming afterwards or ok to use normal wood paint? I have bought Ronsel Knot Stop, do you think this will be ok to prime the knots rather than a knotting solution? Thanks

Ronseal knot block is a combined knot solution with a primer

It would be perfect for what you want and you could put 3 coats on and then not worry about undercoating

Just ensure you let each coat dry

I would think then two coats of your finish paint ......satinwood or gloss would be fine

 

[Diver Fred]

definitely use a knotting solution first.
fill if necessary then prime.

 

[Tryingit]

Thanks all

 

[Tryingit]

definitely use a knotting solution first.
fill if necessary then prime.

Thank you. I was worried that when I sand my filler I'll sand off some of the knot stop

 

[opps]

A while ago, I had to hang some doors. The supplied door stops had very resinous knots. They were so resinous that they leaked onto the new laminate flooring that I had fitted.

I ended up pulling the knots out, washing down with white spirit and back filling with 2 pack filler. The smaller knots I hit with shellac. 2 years down the line, my mate has not complained about the knots being visible.

To be honest. I don't always use knotting solutions on kiln dried timber. Waterbased primers seem to be less likely to discolour under oil based finishes.

 

[michealangelo]

Thank you. I was worried that when I sand my filler I'll sand off some of the knot stop

If you sand any surface and it has bare patches it's a good idea to prime it first

Often putting on a sacrificial primer coat is a good idea as it dries and shows you where you need to fill or indeed if the surface doesn't need filling

Often on walls a decorator will put on a base coat of emulsion to show where he or she needs to fill , if there are any stains to block etc .......a foundation coat or sacrificial coat if you like