What technique is recommended when applying two coats of sealcoat to ensure complete coverage and eliminate streak marks?

1. Apply the second coat perpendicular (crosswise) to the first application direction.
2. Apply the second coat in the exact same direction as the first coat while still wet throughout.
3. Mix diesel fuel into the second coat to enhance flowable liquid consistency.
4. Spray both coats simultaneously using a high-pressure dual nozzle system.