Big hole filler not setting hard

[SJM21]

I’m trying to fill a 50 m deep hole in old plaster so I can rehang a curtain pole. I’ve used ronseal big hole filler and left it for 4 days but after drilling and putting plugs in I can see as soon as I put weight on bracket that the plugs are pulling out

 

[freddiemercurystwin]

Just because you can drill and screw into it doesn't mean that it will have any strength, your fixings need to go beyond the filler into the wall.

 

[robinbanks]

I’m trying to fill a 50 m deep hole

Fark, that's a lot of filler.

 

[SJM21]

Fark, that's a lot of filler.

Oops, I did mean 50 mm

 

[foxhole]

You need to drill 100mm hole for plugs.

 

[Old Salt]

What about screwing a wooden batten to the wall using new hole locations and then screwing the pole to the batten. You could make it blend in a bit by routing the edges.

 

[robinbanks]

Or indeed but a pre-routed section from the local DIY shed