How best to fil this gap?

[DanielWestern]

We recently had an extractor fan fitted in our bathroom. Some of the plaster and some of the cornice had to be cut away to access the wire. Now I am wondering how best to fill this gap in the plaster/cornice to cover the wire, its a couple of cm thick. I guess this is too thick for a regular filler like polyfilla, so would I be best off using some kind of two pack filler here? Any recommendations?

 

[Wayners]

Got any wood glue? It's PVA. Mix with 4 parts water and seal cove and wall.

Toupret will fill that. May take 3 small mixes allowing an hour for each mix set before filling again...
Sand when dry...

If you do a nice job you won't see that hole

 

[DanielWestern]

OK, thanks for that. When you say seal the cove and wall I guess you just mean apply it to the brick and the edges of the cove to make a less porous surface for the filler to adhere to?

I do have a tub of PVA glue - so I would need to thin it with water before applying, I can't just put it on neat?
Toupret interior filler? I have some polyfilla already, would that do the job just as well? If I apply it in stages, waiting for it to dry each stage...

 

[Wayners]

Yes. Seal the edges and bricks with PVA.
Don't use the PVA neat. Better to add water. 50/50 is ok but I prefer 4 to 1.
Seal so filler sticks and done shrink with high suction.
Id use toupret because it's easier to use. Sets nicely and sands nice.
Up to you.

 

[michealangelo]

You could possibly first fill with some grip fill or decorators caulk then put your chosen filler over to top

 

[Koolpc]

Toupret is good as it doesnt shrink.

 

[michealangelo]

Back in the game after a long time out

Is it similar to gyproc 45 ?

 

[Wayners]

Nope.
The easyfill 45 is completely different product when using it.
Mix. Feel. Use. Drying time. Sanding. How it paints over.

I use tx110 mostly but the the standard toupret powder if fine.

 

[opps]

TX110 will have the advantage of drying faster because it has cement in it.