Applying sealant produces a weather-resistant layer that can prevent water damage to your paver. Such a layer also helps with minimizing the loss of sand in your joints. In this way, you can create a more stable surface.
If you are not careful enough, your patio, deck and siding can take a beating from pressure washing. Hence, you need an alternative that is gentler on your property. Soft washing is the answer that you have been looking for.