ᐅ Exterior plaster directly with a leveling coat?

Created on: 5 Aug 2019 16:32
C
Crimson
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
J
jcan
11 Aug 2019 21:49
A leveling coat is applied to even out color variations in the plaster. It also serves as protection for the plaster. The painter's coating usually consists of at least two layers, which alone helps the paint last longer (abrasion/washing resistance, for example, with mineral-based paints).
The paints are basically similar (with the same base).
The leveling coat should not be applied too quickly; there is actually no difference in durability when done properly.
T
Tassimat
12 Aug 2019 00:37
I am facing a similar decision. Do I need this leveling coat or not?
@Crimson: What did you decide?