When stains have shown through old paintwork does the stained area have to be taken back to bare wood before applying knotting or can it be applied after a general sanding?
Many thanks
P
When stains have shown through old paintwork does the stained area have to be taken back to bare wood before applying knotting or can it be applied after a general sanding?
Many thanks
I had the same problem (lazy builders decorators) and just put knotting on the keyed surface. So far (for one area two years later) the stains have not re-appeared.
Malcolm
Thats great .... thanks
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