Short Answer: Approximately 3 - 4 years - Our Big A asphalt emulsion sealer is designed with 70% solids, almost 40% more than your average big-box store sealers. They advertise a 2 year sealer, but in reality, it might last 1 year and if you're lucky, 2. If properly applied, our sealer will last approximately 3 to 4 years in low traffic conditions like a driveway or small business parking lot. To achieve maximum lifespan, this product can NOT be diluted nor have additional sand additives. Also, the pavement must be cleaned of all dust and debris prior to sealing. Failure to comply with these application requirements will greatly reduce the overall lifespan of this product.