Asphalt sealcoating is a protective coating applied to asphalt pavements to protect against water infiltration, oil spills, UV damage, and other environmental factors. It helps extend the pavement's lifespan and improve its appearance.
Generally, asphalt should be sealcoated every 2 to 3 years, but the frequency can vary based on traffic levels, climate conditions, and the initial pavement condition.
Sealcoating is not a crack repair solution but can prevent small cracks from worsening. Cracks should be filled or repaired before the sealcoating process to ensure a smooth, protected surface.
Sealcoating can last between 2 to 3 years, depending on the traffic load, weather conditions, and the quality of the application process.
The best time for sealcoating is during warmer months, typically from late spring to early fall, when temperatures are consistently above 50°F (10°C) during the day and night, ensuring proper curing.
Sealcoating typically requires 24 to 48 hours to dry adequately before the pavement can be reopened to traffic. The exact time can depend on weather conditions and the specific product used.
This depends on the type of sealcoat used. Asphalt emulsion-based sealcoats are more environmentally friendly than coal tar emulsion sealcoats, which contain higher levels of polycyclic aromatic hydrocarbons (PAHs). New eco-friendly sealcoating options are increasingly available.
Coal tar emulsion sealcoats are known for their durability and resistance to fuel and oil spills but are less environmentally friendly due to higher PAH levels. Asphalt emulsion sealcoats are more eco-friendly, offer good protection against water, and are better for the health of applicators and the environment.
The surface should be thoroughly cleaned of all dirt, debris, and liquids. Cracks should be filled, and oil spots should be treated. The pavement must be completely dry before applying the sealcoat for optimal adhesion and performance.
