For each test, calcium oxalate is formed on the surface of the marble.
Stage 1 - Tested calcium oxalate (Ca Ox) for protective capabilities against acid disintegration.
Stage 2 - Compared Ca Ox protection to a professionaly used marble sealant.
Stage 3 - Tested if spray application protects marble as well as a dipping application.
Stage 4 - Tested effects of acid rain on Ca Ox protected marble.
Stage 5 - Tested effectiveness of different application methods: dipping, spraying and rolling..