Forentine Renaissance Masonry also supplies superior quality lime putty under the name Renaissance Lime Putty. Produced EXCLUSIVELY for masonry restoration, green building and the decorative industry. Renaissance Lime Putty is produced in Italy from 5 to 8 in. lumps of high purity calcitic limestone. They are fired at low temperatures in indirect flame, natural draft, continious production vertical kilns fueled by wood waste from an adjoining lumber mill. Then they are immediately slaked and kept in open air pits to age, fully respecting the traditional "Roman" production methods.