How do you remove paint primer from concrete?

You usually only need one or the other. Really it's whatever you like. I personally like primer better, but it is up to you. Try both and see which one...

You can use a paint comb or a wire brush to clean brushes. If you have a lot of paint caked up onto your brush, those can be very good...

The best way to remove paint from concrete is with a pressure washer if you have one. You can also use a wire brush and latex paint remover, and rinse...

No. If you put the mug in the dishwasher, there is a high probability the paint will come off.

You could, but I wouldn't recommend it. You'll get better results if you prime first, then apply two coats of paint after that.

You’ll need to clean the floor thoroughly and patch up any holes, then apply a water-based primer. If you like, you can paint on a base layer of some type...

A specialty concrete cleaner might help—just be sure to follow the manufacturer's instructions. A pressure washer is another possible solution.

You might be able to get the paint off by spraying the spot with a pressure washer.