Successful sealcoating requires a clean, dry, and structurally sound asphalt surface. Before application, the pavement should be inspected for cracks, potholes, oil spots, loose material, and drainage problems. Dirt, dust, vegetation, and debris must be removed so the sealcoat can bond properly. Any significant damage should be repaired first because sealcoating is designed to protect the surface, not replace structural repairs.

Proper surface preparation and suitable weather conditions are also important. The pavement should be completely dry, and the temperature should be within the recommended range for the sealcoat product being used. Rain, excessive moisture, or very cold conditions can affect curing and adhesion. Cracks may need to be filled, oil spots treated, and edges carefully prepared before the protective coating is applied.

Professional sealcoating also requires quality sealcoat material, proper application equipment, even coverage, and sufficient drying time. The coating may be applied with squeegees, brushes, or spray systems depending on the project. After application, vehicles and foot traffic should be kept off the surface until it has cured properly. Regular maintenance, including crack repair, patching, cleaning, and future sealcoating, can help keep asphalt protected and looking well maintained.