Neutral Cleaners are cleaning chemicals with a pH (potential percentage of hydrogen) that is generally between 7-9. pH ratings are logarithmic. Each unit rating is 10 times different than the unit next to it. For example, a chemical with a pH of 7 is 10 times more alkaline than a chemical with a pH of 6 and 100 times more alkaline than pH of 5.
Floor cleaners with pH levels outside of the neutral range (including bleach) can attack the floor finish and dramatically shorten its life span. Solvent based chemicals will not have a pH rating.