Dust proofing unfinished basement concrete floor
I would recommend using ordinary concrete floor paint, NON-glossy, water-based. One common brand of that is the same brand as a "waterproofer" but the paint and the waterproofer are very different products (the waterproofer is a very thick glop that covers a very small area per gallon.)

Non-glossy means it's not slippery without having to add anything to make it non-slip. Waterbased means it's also not horribly stinky and it's easy to clean your brushes/rollers. It's also easy to recoat if the surface is ever stained or damaged.

Both of the products you have linked will leave you with a gray concrete color (since they are clear) and a surface that is slippery.

My personal preference is white, since it makes the area MUCH brighter by reflecting light. Gray and "terra-cotta red" seem to be more common choices for floors, but I find the white floor very nice (mind, I don't freak out about trying to keep it perfect.)

If you are "soap and water washing" before paint, rinse, rinse some more, and rinse again - then dry throughly before painting. Soap residue is not good for paint.