Polyfilla Fine Surface over kitchen paint?

[mthdiy]

Hi all,

I want to repaint my kitchen's walls which was painted with Dulux Kitchen paint. The surface is full of little damages which I want to fill first, sand off and then paint over with the rest of the walls.
The damages look like that:
Pic1
Pic2

I came across the Polyfilla Fine Surface Filler which states that it doesn't need priming and aparently sticks to most undergrounds. My hope was, that I don't need to sand down everything that I fill first. I tried it out on a few patches and it seems to stick very well. I would prefer some real life experience though:

1. Is my little test enough to be sure it will not flake off? Or does it need a pre-sanding?
2. When Polifilla says 'no need to prime', can I really just paint over? I had bad experiences before where painting over filled bits looked different than the rest of the wall

Advice much appreciated

 

[Wayners]

I'd give it a light sand with 180 grade before you fill.

As for primer it depends on paint. Durable paints are the worst over fillers. So I prime all filled areas to avoid problems

 

[jacko555]

I sorted a load of blemishes like that and worse. Where old paint had half came of a wall, pockmarked like Tommy Lee Jones' face.

I used Toupret fine surface filler. Only good for a few mm of depth but after a sand you cannot tell. Awesome stuff.

Maybe the polyfilla is as good, no idea.

I recommend the Toupret fine surface filler