To reduce long-term maintenance expenses, industry experts recommend that pavement be seal coated every two to five years, depending on traffic and overall condition. Pavements that exhibit extensive cracking, base failure, or severe surface raveling will not significantly benefit from seal coating.
Sealcoat tends not to adhere well to areas saturated with oil, so such areas must be treated with an oil spot primer to aid adhesion. Sealer can be applied by either squeegee or spray methods. The spray method is recommended for smooth pavement, whereas rough, porous surfaces are better serviced by the squeegee method with its thicker application. Normal curing time is 24 hours for moderate temperature and humidity conditions.