That's useful - many thanks! Do you need to prepare the wood surface inside the hole that you are filling, either by priming with raw linseed oil or using shellac - as you would when glazing? I did some repairs with putty last year using raw linseed oil to prime the wood surface that seem OK, but they're only a year old so it's hard to tell.
Beautiful. I can’t tell you how helpful that was
That's useful - many thanks! Do you need to prepare the wood surface inside the hole that you are filling, either by priming with raw linseed oil or using shellac - as you would when glazing? I did some repairs with putty last year using raw linseed oil to prime the wood surface that seem OK, but they're only a year old so it's hard to tell.
How long do you leave it to skin over before painting?
About 1-2 days is more than enough. As long as you do not drag any brush marks in the surface, you are good to go.
Can this putty be used to repair exterior of my period sash windows or is just for the interior?
You can use it for interiors and exteriors.
Superbe !