Costelan C BBA 1920 is a sealant for porous surfaces. It can be used on natural stones, unglazed tiles, mortar, terracotta, concrete as well as bricks and convinces by a good resistance against stains, oil and water. In cleaning tests comparing Costelan C BBA 1920 with a water-based silicone sealant, Costelan C BBA 1920 achieved consistently better results for stain removal and oil and water repellency.
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