The sealant compound shall be melted slowly with constant agitation until it is in a lump-free, free-flowing state, within the temperature range recommended by the manufacturer for application. Heating above the manufacturer's recommended range for application is not permitted.
Immediately prior to pouring the sealant compound, the routed cracks shall be cleaned and dried using a hot compressed air lance. The routed grooves shall be treated with hot compressed air until the pavement in the groove is darkened.
The sealant compound shall be placed within two minutes of the hot lance treatment by a manual pouring cone, or hose and wand fitted with proper size tip from a low pressure pump connected to the heating kettle.
