Had to rotate a couple of doors, and am now left with the holes (around
1.5cm in diameter) where the handles were. I also replaced/added some
beadings, as most were removed years ago before the doors were covered in
hardboard. There is also some damage that was caused when the beadings were
removed that I wish to repair as best possible.

I am looking for a filler to repair all these. Needs to be able to sand it,
and then paint over once dry.

I came across this
http://www.screwfix.com/app/sfd/cat/...11363&ts=08014 which seem
promising, but am not sure is can be sanded and painted.

Has anybody had any experience with it? Any other suggestions?

TIA.