ᐅ Exterior plaster directly with a leveling coat?

Hello everyone,

we are about to do the exterior plastering on our house. Our plasterer has offered to apply a leveling coat over the finishing plaster (mineral-based in country house style).
Has anyone had experience with this? He said that this coat protects against algae growth, makes the plaster properly white at first, and that then a final paint by the painter would not be necessary.
My painter isn’t very familiar with the leveling coat (he was honest about that) and said that it probably won’t last very long and a final paint job would still be necessary.

Does anyone have experience with this?
Do I need the leveling coat, and is it an alternative to the final paint? After all, the leveling coat costs about 2,000€. The painter’s paint job would probably be a bit more expensive (especially because he would have to set up his scaffolding again).

Best regards,
Crimson

Hello,

a quick question for clarification: How exactly is the leveling coat applied by your plasterer supposed to differ from a "regular" coat applied by a painter?

It is simply the initial coat, and you can agree on the method of application with either your plasterer or your painter (e.g., silicone resin, etc.).

At least, that is how it works for us and all other homeowners in our area.

I’m also wondering what the difference is... the painter’s coating would be an algae-resistant paint in pure white (silicate-based?, ...).
The leveling coat is also algae-resistant and white. To me, both sound quite similar, if not the same.

My question is: Is there a difference between the façade paint applied by the painter and the leveling coat applied by the plasterer?
Do both last equally long (15 years or more)? Or does the leveling coat have to be redone after 5 years, requiring the painter to reapply façade paint?

If I’m not mistaken, the painter lets the finished plaster cure for a while to allow the chemical processes to complete before painting. And then possibly applies two coats?

The leveling coat, on the other hand, would be applied immediately after plastering.

There are also plaster systems with algae and fungus-inhibiting additives. For this reason alone, a paint coating is not necessary.

Thank you for the response. Unfortunately, my question is still not answered^^.
I think it can be boiled down to the following:
Does a leveling primer (or leveling paint) last as long as a coat of dispersion or silicate paint with the same coverage?
And are these two types of coatings actually comparable?

So, in case others come across this topic: No, it is not a substitute for exterior wall painting.