I will be leveling a section of the barn. I have sanded down the concrete slab, will prime, and apply 5mm+
https://www.bauhaus.se/avjamningsmassa-cm-940-industri-top-20kg
The reason for this is that "regular" leveling compound is apparently not suitable for cold environments.
Then paint with epoxy paint.
I have leveled a few floors before but never been completely satisfied. They've been in bathrooms, so any imperfections haven't been visible...
This time, the plan is to set up leveling pins which I will remove as I go because I don't want them to remain in a grid pattern once it's painted.
Pour out and use a spiked roller to remove bubbles (had issues with that last time) and use the widest "squeegee" I can find.
But making this level "freehand" without having any level to guide against is hard for me to grasp. It doesn't need to be perfect as long as it looks good.
The last floor, I spread with a fine-toothed broad spatula for the purpose, but afterwards, I could clearly see small toothed level differences... and that floor was 2x1.5m so this is a step up in complexity...
I'm afraid there will now be ridges from the squeegee, but what should I do?
Hiring someone is not an option; I will do it and just want to maximize the conditions... so if there are any tips, I'd gladly take them.