Road American
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Durability depends on residue hardness, polymer modification where used, solids content, filler loading, and adhesion promoters that improve bonding to aged asphalt. Curing time is controlled by water evaporation rate, surfactant system, droplet size, and coalescence behavior, plus site conditions like temperature, humidity, and wind. Additives can speed break or improve early water resistance, but too aggressive chemistry risks premature breaking in the tank or sprayer. Industrial producers tune the balance so the sealer cures reliably without clogging or streaking.
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