The invention provides an infiltrant for dental application that comprises crosslinking monomers. In accordance with the invention the infiltrant has a penetration coefficient PC>；50 cm/s, and the crosslinking monomers, based on the total mass of monomers, comprise at least 5% by weight of crosslinking monomers having at least three polymerizable groups and not more than 95% by weight of crosslinking monomers having two polymerizable groups.
