Thank you for reaching out, Kim! Typically, only 2 coats are needed with Rust-Oleum Modern Masters Front Door Paint. If applying over a darker color with a bright color, an additional coat may be needed. Please keep in mind, this product is intended for use over water-based paints and primers. If an oil-based paint was originally on the door, a water-based primer, such as Rust-Oleum Zinsser Bulls Eye 1-2-3 Water-Based Primer, needs to be used.
https://www.homedepot.com/p/Zinsser-Bulls-Eye-1-2-3-1-Gal-White-Water-Based-Interior-Exterior-Primer-and-Sealer-2001/100398391e
- Rust-Oleum Product Support 3