A sealcoat is a liquid layer that is applied on top of pavement. It provides protection from cracking, UV ray damage, oxidation, water damage, general traffic damage, and more. It prevents the pavement from becoming dried out (again, this can lead to cracks in the pavement) and also prevents other liquids like gasoline and other car oils from damaging the surface.
Regular maintenance with a sealcoat layer can greatly impact the lifespan of your asphalt. Each application is beneficial. This preventative measure can save money in the long run by warding off preventable damage, so you save money on repairs. This procedure, however, will not repair any existing damage to pavement.
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