Jahn M120 is a single-component, cementitious, mineral based mortar that is designed for the restoration of marble. Jahn M120 is completely vapor permeable and contains no latex or acrylic bonding agents or additives. M120 is formulated for compatibility with the marble substrate and is available in Standard, Premium, and Custom Colors. M120 provides a permanent solution, which both restores and protects the beauty of the marble.