First of all, painting the wall will bloom.

Generally, if it is caused by alkalinity, it will be more obvious (yellow) on the blue wall. Shaped like a water stain, turned outwards (a bit like a child wetting the bed). If it is not this kind of hair, it is not caused by alkalinity.

Now the general latex paint will be matched with alkali-resistant primer, which can seal the alkalinity of the base, because the frost of latex paint caused by alkalinity can be effectively controlled, so don't worry.

There are many situations in which latex paint is painted on the wall, and the reasons are also very complicated. Just because putty is alkaline does not help solve the problem.

Let's talk about the choice of putty.

Many people will ask: Is it necessary to use water-resistant putty?

According to my understanding of materials and market, this question can be equated with: Is it necessary to choose oil that is not gutter oil?

Why is there gutter oil on the market? Because it is cheap, small restaurants are willing to use it, and if it works well, it can earn more money.

Why are there waterproof putty on the market? Because it is cheap, workers are willing to use it, and they can make more money if they use it well.

But you are the owner, would you like to eat gutter oil? If not, please choose a better product!

Let's talk about why workers are willing to use non-water-resistant putty: because water-resistant putty is stronger, it will be more laborious to polish it. Is prudence good or bad for you as a master? Don't you want your home to be fragile everywhere?

I also have suggestions about the material, but in order to avoid advertising suspicion, I won't say much.

Wall decoration, I suggest you have a look at my little red book on the wall. E-books can be downloaded for free, which may help you.