TASKI Jontec Terranova Marble Maintainer 5 Litre Spray crystalliser for the maintenance of calcerous stone floors. Code: 050227 Spray-crystallizer for the maintenance of calcareous stone floors. Used with a steel wool pad and a single disc machine the product provides a high gloss on marble and other calcareous stones without building a film on top. By crystallizing marble floors they get more wear resistant and the acid sensitivity is reduced. Can also be used to re-crystallize traffic areas of previously treated floors