Topical coating is an application of natural or synthetic waxes, acrylics, urethanes and epoxies over the marble floor. The majority used today are composed of acrylics. Such applications usually call “maintenance of marble surfaces”.
In actuality, topical coating is simply replacing the polished marble floor with a film of reflective and shiny plastic polymers, which are designed to wear and be refinished over time. In reality, this is a system of maintaining the plastic, not the stone. It is a finish designed to gradually wear under traffic or what is referred to in the industry as a “sacrificial coating”. The plastic finishes many times contain chemicals that further damage the stone. The strippers and harsh pads used periodically to reduce the finishes and replace the glossy surface also do mechanical damage to the underlying stone.