Why Commercial Floor Coatings Fail

May 15, 2025

What causes commercial epoxy floors to fail and peel—and how to make sure yours doesn’t

When a concrete floor coating fails in a commercial environment, it’s more than just an eyesore. Peeling, bubbling, or delaminated coatings can lead to safety concerns, reduced traction, downtime, and costly repairs. At Spray ’n Coat Painting, we’ve installed thousands of square feet of commercial coatings throughout Boise, Meridian, Nampa, and the surrounding areas. Two key reasons are almost always to blame for floor failure: moisture vapor pressure and inadequate surface prep.

Let’s take a closer look at both—and how to avoid these issues from the start.

Moisture Vapor Pressure: The Problem You Can’t See

Concrete may feel dry and solid, but it behaves like a sponge. If there’s a moisture source beneath the slab—like poor drainage, groundwater, or irrigation—it can push vapor upward through the concrete as temperatures rise. This is known as moisture vapor pressure, and it can place significant vertical pressure on the underside of your floor coating.

Standard commercial coatings may tolerate up to 5 to 10 lbs of vapor pressure, while higher-end systems can handle up to 25 lbs. But when moisture levels exceed what the coating can handle, the result is predictable: lifting, peeling, or blistering—especially in high-heat environments like warehouses, kitchens, and industrial shops.

While it’s not the most common reason for floor failure, it’s one that must be tested for—particularly on older concrete slabs or ground-level installations. Skipping this step can lead to big problems down the road.

Inadequate Surface Prep: The #1 Cause of Peeling Floors

By far the most common reason for commercial floor coating failure is insufficient concrete prep. No matter how high-quality the coating material is, it won’t bond well if the surface underneath isn’t properly prepared.

That means mechanical grinding, not just cleaning or acid-etching. At Spray ’n Coat Painting, we use industrial diamond grinders to sand off the top layer of concrete and create a clean, porous surface. This step is essential—especially in commercial environments where floors endure high traffic, rolling equipment, chemical spills, and impact.

Some contractors may rely on muriatic acid or cleaners to prep the slab, but these methods often fall short. If there’s any kind of previous sealer or old coating, acid won’t be able to penetrate it—and the new system won’t stick. That’s why diamond grinding is the most reliable prep method in today’s industry.

How to Prevent Commercial Floor Coating Failure

Whether you manage a retail shop in Meridian, a public restroom in Nampa, or a large warehouse in Boise, these best practices will help protect your investment:

Test for Moisture Vapor

Before installing a coating, conduct a moisture vapor emission test (MVER) to determine if the slab is within spec.

Use Mechanical Surface Prep

Skip the shortcuts. Diamond grinding ensures a consistent profile for long-term adhesion.

Avoid Acid-Only Prep Systems

Especially in high-demand or previously coated environments, acid etching alone is unreliable.

Match the System to the Environment

Different coatings serve different needs. High-traffic areas, chemical exposure, and cleaning methods all affect system choice.

Hire the Right Installer

Choose a commercial floor coating company with experience in complex environments—like schools, churches, restrooms, and industrial shops.

Done Right from the Start

At Spray ’n Coat Painting, we don’t cut corners—especially when it comes to commercial floor coatings. Our team handles everything from moisture testing and grinding to system selection and precise installation. We’ve coated facilities for the City of Boise, Boise State University, and dozens of commercial clients across the Treasure Valley.

To learn more about our process, visit our Commercial Concrete Floor Coatings page.

Contact Spray ’n Coat Painting or fill out a request form to schedule a free on-site estimate.

< Older Post

Newer Post >

How Long Do Garage Floor Coatings Really Last in Boise? Expectations vs Reality

January 14, 2026

How long do garage floor coatings really last in Boise? Learn realistic lifespan ranges, what affects durability, and when coatings are worth it.

Why Garage Floor Coatings Fail in Idaho Homes (And How Professionals Prevent It)

January 7, 2026

Peeling, bubbling, or cracking garage floors are common in Idaho. Learn why coatings fail—and how professional installation prevents it.

How Often Should You Repaint Your Home?

By Aaron Cote • December 30, 2025

Wondering how often to repaint your home? Learn how Boise homeowners can protect, refresh, and maintain property value with expert painting tips.

What Is an Industrial Coating?

By Aaron Cote • December 22, 2025

When most people think of paint, they picture color and style. But in the world of industrial painting , coatings do much more than decorate—they protect . Industrial coatings are specialized finishes engineered to shield surfaces from moisture, corrosion, chemicals, and everyday wear. From warehouses and factories to parking garages and commercial floors, these coatings create durable, functional surfaces that stand the test of time. If you own or manage a business property in Boise, understanding what industrial coatings are —and when to use them—can save you thousands in maintenance and repair costs. The Purpose of Industrial Coatings Unlike regular paint, which focuses on appearance, industrial coatings are performance-driven. They’re formulated to protect concrete, metal, and other building materials in demanding environments. These coatings create a tough, protective film that resists impact, abrasion, chemicals, and weather. In essence, industrial coatings are your property’s first line of defense. They prevent rust on metal beams, seal moisture out of concrete floors , and extend the lifespan of surfaces that endure heavy use. Whether used on warehouse floors, machinery, or exterior walls, they deliver both function and longevity . Common Types of Industrial Coatings Different coatings serve different purposes. Here are some of the most widely used types in Boise commercial and industrial spaces: Epoxy Coatings: Known for strength and adhesion, epoxy coatings are ideal for concrete floors, garages, and warehouses. They resist chemicals, oils, and abrasions while providing a smooth, easy-to-clean surface. Polyurethane Coatings: Flexible and UV-resistant, polyurethane coatings are often applied over epoxy for added protection. They work well for exteriors exposed to sunlight and temperature changes. Acrylic Coatings: Acrylics are fast-drying and suitable for both interior painting and exterior applications . They’re often used where aesthetic appeal and moderate protection are both desired. Zinc-Rich Coatings: Used primarily on steel and metal structures, these coatings provide superior corrosion resistance. The zinc acts as a sacrificial barrier, protecting the metal underneath. Elastomeric Coatings: Perfect for roofs, walls, and stucco surfaces, elastomeric coatings stretch and contract with the material underneath, sealing out moisture while maintaining flexibility. Each coating type serves a specific need, and professional painters choose products based on the surface, exposure, and environment. Key Benefits of Industrial Coatings Industrial coatings offer a long list of benefits beyond aesthetics. For Boise business owners, the investment pays off through better protection, lower maintenance, and improved safety. Durability: Coatings create a hard, resilient layer that withstands heavy machinery, traffic, and cleaning. Corrosion Resistance: Metal structures are especially vulnerable to rust and oxidation. Coatings form a barrier against water and oxygen, extending their lifespan. Chemical Protection: Industrial facilities that use solvents, oils, or acids rely on coatings to prevent surface damage and contamination. Easy Maintenance: Coated surfaces are easier to clean and maintain. Dust, dirt, and spills can be wiped away without damaging the finish. Safety and Compliance: Many coatings improve traction, reduce slip hazards, and meet OSHA safety standards—critical for warehouses and production areas. Cost Efficiency: By extending the life of existing structures and surfaces, industrial coatings reduce repair and replacement costs over time. Where Industrial Coatings Are Used Industrial coatings are found everywhere—from large commercial buildings to small workshops. Here are some of the most common applications around Boise: Warehouses and Distribution Centers: Floor coatings protect against forklifts, pallet jacks, and constant movement. Manufacturing Facilities: Coatings safeguard machinery, tanks, and production areas from chemicals and abrasion. Parking Garages: Concrete sealers and waterproof coatings prevent cracks, stains, and salt damage. Retail and Office Buildings: Exterior coatings preserve appearance and protect against weather. Healthcare and Food Service: Hygienic, nonporous coatings maintain cleanliness and meet strict sanitation standards. Agricultural and Industrial Equipment: Protective coatings prevent rust and wear on exposed metal surfaces. Wherever durability and cleanliness matter, industrial coatings deliver. Industrial Coatings vs. Regular Paint While industrial coatings and standard paint may look similar on the surface, their composition and performance are very different.