Rust-Oleum 238475 Concrete Preparation Etch, 1 lb – Prime and Improve Adhesion for Paint & Sealant

Rust-Oleum Concrete Preparation Etch is designed to prime interior and exterior concrete surfaces before painting, staining, or sealing. When you mix the citric-acid based powder with water, it creates a controlled etching action that reveals a slightly textured surface, helping subsequent coatings grip more effectively. This prep step is well suited for garages, basements, patios, walkways, and other concrete floors or slabs where you want a durable finish.

What makes it work

By gently opening up small pores on the concrete surface, the etch powder enhances mechanical adhesion for paints and sealants. The citric-acid formula is designed to be effective while being mindful of the surrounding landscape, as the solution is environmentally friendly and will not harm plants or grass when used as directed.

• Ideal for preparing concrete floorings for painting, sealing and coating
• Citric-acid formula opens up tiny pores on the surface for better adhesion
• Makes 2 gallons of etching solution per 1 lb package
• Environmentally friendly solution will not harm plants or grass
• Apply with a plastic watering can or push broom

Real-life use scenarios

When used before slat coatings or epoxies, the product helps create a receptive surface that can handle wear in high-traffic areas like garages or workshops. Homeowners often test a small area first to observe how the surface responds after rinsing and drying. Exterior patios and driveways can benefit from the same prep before stain or protective sealant is applied, ensuring longer-lasting color and resistance to peeling.

How to use

• Prepare the surface by cleaning and removing loose particles, oils, and dust.
• Mix the powder with water according to package directions to form the etching solution.
• Apply evenly over the area using a plastic watering can or push broom, working in manageable sections.
• Rinse thoroughly with clean water and allow the surface to dry completely before coating.

What you get

A 1 lb package yields about 2 gallons of etching solution, providing a cost-effective prep option for various concrete projects. The kit supports interior and exterior applications and is formulated to be friendly to vegetation when used as directed.

From the Manufacturer: Rust-Oleum EPOXYShield Concrete Etch prepares concrete surfaces for painting and staining. When mixed with water, Concrete Etch creates a surface profile that allows for maximum penetration and adhesion.