What do you say?
The chimney needs to be plastered and it requires 0-20mm to align with chipboard + 6mm gypsum.
The chimney sweep recommended gypsum plaster which I have bought.
Do I need to prepare with anything before I apply the plaster?
Take a spray bottle and thoroughly moisten the surface before applying the plaster. Mix the plaster so that it has a consistency similar to toothpaste, without running or moving off the wall.
Be careful that it doesn't become too thick as it cannot be sanded.
I will be tiling a part and painting the rest that will be behind the electric and wood stove, so the surface finish is not super important.
But what happens if you try to sand plaster?
But what happens if you try to sand gypsum plaster?
/Höghus
The sandpaper breaks...
You need to grind it down with a diamond grinding disc on an angle grinder/grinding machine, and it creates an incredible amount of dust.
While the gypsum plaster is still a bit soft, you can go over it with a plastering float made of plastic or metal.
Just wet it a bit again with a spray bottle and smooth it out evenly.
You have to grind it down with a diamond grinding disc on an angle grinder/grinding machine, and it creates an insane amount of dust.
While the gypsum plaster is still a bit soft, you can go over it with a plastic or metal float.
Spray a little water again with a spray bottle and smooth it out evenly.
Aha, it becomes that hard, thinking about plasterboard.
I will install three guides, when is it appropriate to remove them?
Aha, it's that hard, I was thinking about plasterboard.
I will set up three guide rails, when is it appropriate to remove them?
/Höghus
Of course, it's easier with guide rails if you want it completely smooth. You'll need to feel how hard the plaster is starting to get.
Use a knife and press in, it should be like chewing gum (chewed, of course) consistency when you remove the guide rails.
First score along the rails with the knife so you don't pull off more than necessary.
It turned out better than I expected, thanks for the support!
The trowels and float are probably the same tools used when the chimney was built over 60 years ago.
Should the float be cared for in any special way? It's completely made of wood.
Höghus said:
