[header] How to seal pavers [title] Choose a water-based sealer if your pavers are laid with joint sand. [step] Water-based sealers are sprayed on and give an even coverage. The main benefit of a water-based sealer is that it hardens the joint sand and penetrates into pavers better. 
This ends up creating a hard seal over the entire paved area. [substeps] Water-based sealers do not darken the stones or give a high amount of shine to the pavers.