Burnishing

Burnishing runs a high-speed machine with a soft pad across a floor’s existing finish. The friction and slight heat smooth the surface into the high-gloss, wet-look shine associated with well-kept retail and institutional floors.

What it does not do

Two things, and both get misunderstood. Burnishing does not clean the floor — running a high-speed pad over soil grinds that soil into the finish and can scratch it. The floor has to be genuinely clean first. And it adds no protection: there is no new finish involved, so it does not extend the life of the coating.

It is purely an appearance service performed on a coating that is already sound.

When it helps and when it hurts

It helps on a floor with enough finish to polish, cleaned immediately beforehand, on a schedule. It hurts on a floor with thin or worn finish, where burnishing removes what little is left, and on a floor that has not been cleaned, where it drives grit into the coating.

Not every finish is formulated to be burnished, either. Using a high-speed pad on a finish that was not designed for it can haze or soften the surface rather than gloss it.

Where it fits in a floor program

The usual sequence is routine cleaning, periodic burnishing for appearance, scrub and recoat as the finish wears, and strip and wax when the stack finally needs rebuilding. Burnishing is the cosmetic layer on top of that program, not a replacement for any part of it.

If a floor looks dull and burnishing does not bring it back, that is usually the signal that it needs a recoat rather than more polishing.