Floor preparation and concrete grinding by Epoxy Designs
Surface Preparation

Floor Preparation Services

The most critical step in any epoxy flooring project. Proper surface preparation is the difference between a floor that lasts 15+ years and one that fails in months.

Why It Matters

The Foundation of Every Lasting Epoxy Floor

Key Benefits

Prevents coating failure, peeling, and delamination
Creates proper mechanical bond for long-term adhesion
Removes oils, sealers, paints, and contaminants
Addresses moisture issues before they cause problems
Levels imperfections for a smooth finished surface
Extends the lifespan of your epoxy flooring system

Epoxy coatings do not bond to smooth, sealed, or contaminated concrete. They require a properly prepared substrate with a mechanical profile that allows the material to anchor into the slab. Without correct preparation, even the highest-quality epoxy will sit on the surface rather than bonding into it — leading to peeling, bubbling, and delamination within months.

Proper floor preparation involves several key steps: assessing the slab condition, mechanically grinding the surface to the correct Concrete Surface Profile (CSP), repairing cracks and defects, addressing any moisture issues, and applying a penetrating primer. Each step builds on the previous one to create a substrate that will support a durable, long-lasting epoxy system.

The Concrete Surface Profile (CSP) is a standardized measurement defined by the International Concrete Repair Institute (ICRI) that describes the roughness of a prepared concrete surface. Most epoxy systems require a CSP between 2 and 4 — enough texture for a strong mechanical bond without requiring excessive material to fill. Professional diamond grinding is the most reliable method to achieve this profile consistently across the entire slab.

Moisture is one of the most common causes of epoxy floor failure. Concrete is porous, and moisture vapor can migrate through the slab from the ground below, creating hydrostatic pressure beneath the coating. This pressure causes bubbling, blistering, and eventually full delamination. We test every slab for moisture before installation and apply vapor mitigation systems when needed to prevent these failures.

Our preparation process uses industrial-grade diamond grinders, HEPA-filtered dust collection systems, and professional-grade repair compounds. We don't take shortcuts — because the longevity of your entire flooring system depends on what happens before the first coat of epoxy is ever applied.

Step by Step

Our Preparation Process

01

Inspection & Testing

We assess slab conditions including moisture levels, existing coatings, cracks, and surface hardness to determine the right preparation strategy.

02

Grinding & Profiling

Industrial diamond grinders create a CSP 2–4 profile, removing contaminants and opening the concrete pores for optimal adhesion.

03

Repair & Patching

Cracks, joints, spalling, and surface defects are filled and repaired with epoxy-compatible patching compounds for a smooth, uniform substrate.

04

Final Prep & Priming

The surface is vacuumed clean, moisture barriers are applied if needed, and a penetrating primer locks into the concrete to anchor the coating system.

Ready to Get Started?

Contact us today for a free consultation and estimate on your floor preparation project.