
Rust-Oleum® Professional Primer is a versatile, high-performance water-based primer designed for interior and exterior use in residential, commercial, and industrial projects. This premium primer offers fast-drying convenience, exceptional adhesion to glossy surfaces, and reliable stain-blocking power. Suitable for use under or over oil and latex paints, it provides a mold- and mildew-resistant finish while preventing rust. Ideal for walls, ceilings, doors, trim, fascia, soffits, foundations, railings, and more, it effectively seals porous surfaces and resists high pH levels (up to 12.5). Rust-Oleum® Professional Primer also locks in tough stains like graffiti, grease, rust, tannins, creosote, and asphalt, ensuring a smooth, durable base for any paint job.