I've decided to try and see if Toupret Fibacryl would improve things. I have a 310ml tube of the stuff ready, I am just trying to decide how best to apply it. Not only ideal for using on paintwork, Toupret Fibacryl filler can also adhere to plaster, masonry, primed wood and can also be used on unpainted and painted surfaces. The Toupret Fibacryl filler should be applied by either filling knife or blade and should only be overcoated once completely dry.

Best flexible filler for walls and ceilings? | DIYnot Forums Best flexible filler for walls and ceilings? | DIYnot Forums

Perfect for skirting, architraves and staircases, where movement is possible - its flexible formula...

Do not apply the filler at temperatures below 5°C or above 35°C or at a relative humidity higher than 80% Yes, it’s a really good idea to finish with either Skim Flex (flexible skim-coat) or Fine Surface Filler. All Toupret products will adhere to Fill Flex once it is fully dried.

Toupret Fibacryl Flexible Filler 330ml | Toolstation

What is the best filler to use? As a specialist manufacturer of professional fillers for over 80 years, Toupret is the leader in the market for high performance filler products. take a small trowel knife, or even the standard triangular little filling plastic, you don't need to buy a proper trowel, fill over the tape, and go beyond its edges

With a bit of practice, you can make it so smooth that no visitor will realise you have replastered that area! (Only you will see, because you know) I don't really want to say this, as any possible solutions may help someone in the future. But the thread is 2 months old and by now the OP may have done whatever he attempted. Free sachet delivery is available on all Rust-Oleum sachets. These are shipped direct from the manufacturer using Whistl. Can take 5-10 working days.