What is infield conditioner or sports field conditioner?

Infield conditioner can be a variety of products designed to keep just the right amount of moisture on a baseball or softball field.  Infield conditioners are made to amend infield dirt and not designed to be used alone.  It is typically added to the existing or new infield dirt on the surface (up to ¼”) or blended throughout at usually 10% by volume.  Turface® and some other conditioners are made from calcined clay.  A specific type of clay that is super-heated to become porous.  Other conditioners are made from a type of shale, diatomaceous earth, crushed aggregates, and brick dust.