No adverse reaction to humidity intrinsic to concrete substrates (Polyaspartic urethanes and polyureas are very sensitive to dampness)
Image: amazon.com Two-section epoxy is a popular option for garage floor coatings https://www.google.com/maps/d/u/6/edit?mid=1gznsUVWp_f81z4LXylE-cVx_Kxbzu5Q