Also, plants put the water together with carbon dioxide to make sugar. This takes energy, which plants get from light. Water also helps plants stand up tall, even when they arenât made of wood. They donât have bones, but they do have cell walls and water pressure.
The average cost to sealcoat an asphalt parking lot with either asphalt or coal tar emulsion pavement sealer ranges from $0.14 - $0.25 per square foot.he average cost to sealcoat an asphalt parking lot with either asphalt or coal tar emulsion pavement sealer ranges from $0.14 - $0.25 per square foot.
1 Sealcoat that is brushed on will usually cost anywhere from $.07 â $.10 per square foot, depending on the condition of the driveway, and will last 1-2 years.2  Asphalt that has never been sealcoated or has not been done in many years will absorb much more sealer and will therefore cost a little more. Sealcoat that is brushed on will usually cost anywhere from $.07 â $.10 per square foot, depending on the condition of the driveway, and will last 1-2 years.