The cloudy white film develops on pavers when they absorb sealing material. If you don’t clean the surface or provide enough time between coats, moisture becomes trapped inside the paver. As the moisture tries to escape, it’s blocked by the sealer, which causes a white appearance.
Often, the white cloud is also caused by saturation. Excess sealer on pavers can cause staining and make the surface extremely slippery. This isn’t easy to repair and requires professional paver sealing to fix correctly. To prevent this altogether, it’s best practice to hire a professional from the start.