Is filler sinking

[LAINE]

Noticed this weekend that Byggmax putty was very easy to sand, compared to the ones I've tried before like Bostik and Flugger's putty.

 

[danne007]

The painter who worked on my extension used either two coats of plasterboard filler and then one coat of sand filler, or alternatively one coat of plasterboard filler and two coats of sand filler, depending on whether it was joints between boards or some minor fill. For screw holes and full-surface spackling, he used sand filler.

That sounded a bit too ambitious. Three times of filler!? A painter knows that 2 coats of light hydrating filler are enough, that is, unless the carpenter messed up.

 

[LAINE]

As far as I know, many painters use drywall compound for the first coat and then finish with sand putty.

 

[5.2 racing]

That sounded a bit too ambitious. Three times putty!?
A painter knows that 2 times light putty is enough, that is, unless the carpenter has messed up.

No, 2 times is never enough. It used to be enough with 2 times but not now. More the rule than the exception that you have to putty 3 times, even 2 times at the joint plus once broad putty on the whole. At least the ceiling.

 

[danne007]

Okay, this is how I do it without sounding like a know-it-all: the first time I fill the seam and the second time I apply putty out about 40cm, this is naturally on the ceiling. The mistake I see is that DIY painters often remove too much putty when smoothing, i.e., pulling the spatula over the seam. Let it bulge a bit after the first time because it sinks in due to the water in the putty when it dries. Of course, everyone does as they please, but you save a lot of time and money if you putty twice.

 

[5.2 racing]

Sure. But after ten years, I've realized that in the long run, it's faster for me at least to plaster three times and thereby avoid going back to fill in where I've missed. But as you say, it's up to each individual.