How is Rust Bullet for Concrete applied? What is the best method?

Apply by brush, roller or spray equipment. If using a brush, use ones that can be discarded when the project is completed. If using a roller, use a 3/8” nap roller. Do not use foam brushes or foam rollers. If using Spray equipment, use and Airless sprayer with a 517-523 size tip with 3000 – 5000 PSI. The best method depends on the applicator and their experience, and the application equipment. Spray application will give the smoothest most even finish. A roller application is less time consuming than using a brush.