After the cooling period, the crack should be completely filled by the Crack Sealing Machine. Some professionals suggest the overbanding technique, where the sealant is allowed to band over the crack, approximately a 1-2’’ out onto the pavement on each side. These techniques ensure that the crack is more efficiently sealed from infiltration of moisture.
Crack Sealing Machine pouring the sealant should never set higher than 1/8’’ above the pavement level, where is can be picked up by snow plows and other pavement cleaning equipment. To prevent a convex form from setting, a U- or V-shaped squeegee or s sealing shoe can be applied to flatten the sealant over the crack and remove excess sealant during Crack Sealing Machine working. The squeegee creates a sort of concave seal, allowing for contraction and expansion of the pavement during extreme temperature conditions.
