Some dense granites need infrequent sealing, while more absorbent stones require greater attention. A simple water-drop test may provide an indication, but the fabricator or sealer manufacturer should provide the final procedure. Applying sealer too frequently can leave haze or residue. Sealer slows liquid absorption but does not make granite stain-proof or prevent etching in stones containing acid-sensitive minerals.
Key considerations
- stain resistance
- moisture resistance
- appearance retention
- penetrating protection
- stone-specific schedule
- test-based maintenance