Paint garage floor

Or simply sprinkle and work [Hartstoff] into the screed

Hello, we painted our basement floor with a 2K garage floor coating because we store car tires and bicycles there. We bought the paint from the company Albrecht, available at the hardware store, 5kg cost 65€, enough for 20-25 sqm for a single coat. However, you have to prepare and plan the application well because after mixing the 2 components, the stuff turns like latex within 2 hours. It can no longer be worked with then. After 1 hour, it already becomes more difficult to paint. So for the first coat, dilute directly with water as stated in the instructions, even if the paint seems thin enough to you. The 2nd coat should then, according to the manufacturer, definitely be applied the next day without dilution with water. And buy the right roller with handle, a decent wide brush for the edges and preferably work in pairs - then one can do the edges and the other roll; otherwise, time will be tight. For us, it was like this: Day 1 clear everything out, sweep, vacuum. Day 2 prime. Day 3 1st coat, Day 4 2nd coat. After 7 days the floor is fully usable, meaning drivable with a car. You could walk on it already the day after the 2nd coat. Regards

Thank you for the information and hints. Especially also for the tips on processing!

Malli is right, I am adding my own (recent) experiences with a 2k epoxy resin sealing system, with which I sealed our precast concrete garages. 1. Create a dust-free and grease-free surface (sweep, vacuum). 2. Tape off the base. 3. Prime with 2k system, sprinkle quartz sand as an adhesion promoter into the wet coat. 4. The next day, first coat with 2k system in the desired color. 5. The next day, second coat with the 2k system in the desired color, optionally sprinkle color chips/decorative chips into the wet coat. 6. The next day, apply colorless 2k top seal. After another 12 hours (depending on the weather), the surface can be walked on; at the latest after 72 hours, the car can be parked.

General: Stir the first component (especially important if it is colored), if necessary transfer to another container, then add the second component and stir (mechanically stir, drill/cordless screwdriver). Then spread the mixture in snakes on the floor; curing generates heat, which may not be dissipated effectively enough in the container, this can shorten the pot life. Then paint the baseboard with a small roller or brush the corners, then roll the surface. The work tools (rollers, brushes) are consumables—the stuff hardens and can only be thrown away afterwards.

I recommend safety goggles (at least when stirring) and body-covering clothing and gloves, otherwise, in my opinion, it is not particularly critical.

There are specialized shops on Ebay (search terms 2k epoxy, 2k sealing and similar), which also run their own websites. I found the hardware store offerings rather unsatisfactory and somewhat expensive. The whole thing including everything cost me about 11 euros/m².

I have now also decided on a 2k epoxy coating. Thank you for the support. I will know over the weekend if the theory worked in practice.

Please document with pictures, I still plan to do that, just need to wait for the plaster.