Examine the sealant in the cracks to see why it is not ... Regardless of the reasons for asphalt cracking, those cracks now must be properly repaired. The ideal time to treat cracks is as soon ...
"In the late 1970s, the use of coal-tar based sealant was discouraged in favor of fiber-filled, asphalt based sealant," he recounts. "Since fiber clogged up the spray tips, contractors opted for ...