Immediately with mineral spirits.
1 coat at 50 sq. ft/gallon. Two coats recommended
Exposure to rain or heavy dew: 12 hours
All asphaltic surfaces, rolled roofing, metal, slate, asphalt/fiberglass shingles, chimney & pipe flashing, metal & wood gutters compostion roofs and driveway cracks, DO NOT use as a coating on asphalt shingles.