Coval

Two coatings, same floor, completely different outcomes. Here's why.

Most coatings grip the surface — physically keying into the texture and pores of a prepared substrate. That grip works until it doesn't: moisture getting behind the film, thermal movement working the bond, traffic loading stressing the interface. When it lets go, the pattern is familiar: edges lifting first, then bubbling, then the whole film coming up. Strip and redo.

Covalent bonding is a different mechanism. Instead of gripping a prepared surface, the coating forms molecular-level chemical bonds with the substrate — reactive groups sharing electrons with compatible groups on the surface. Not grip. Connection. The coating and the substrate are chemically joined at the interface.

The maintenance difference is significant. When a covalently bonded coating wears in a high-traffic area, the response is clean and recoat — a fresh coat over the existing one, no stripping required, because the bond to the substrate is still intact. That's not a convenience. It's a fundamentally different maintenance model that changes the cost of protecting a floor over its lifetime.

This is what Coval is built on, and why facilities running Coval systems operate differently from those running conventional coatings. The mechanism determines the outcome.

We break down both mechanisms in our September 15 blog post — how they work, how they fail, and what it means when you're specifying a floor system. Read the full article in the News section of our website.

https://covaltechnologies.com/mechanical-adhesion-vs-covalent-bonding-why-the-difference-changes-the-outcome/

Spotlighting our water-based sealer with an antimicrobial additive, another tool in our toolbox of surface protection.

Why do coatings keep failing on the same floor?

More often than not, the coating isn't the problem. The substrate is.

Here's what's happening at the surface of every concrete slab:

When concrete cures, one of the byproducts of the chemical reaction is calcium hydroxide — a soft, water-soluble compound that migrates to the surface and concentrates there. That's the layer most coatings are bonded to. It's also the weakest material in the whole system.

On top of that: concrete is porous. Moisture v***r moves through the slab continuously — upward, through the floor, through the coating. When it can't escape, it builds pressure at the bond line. That's where the bubbling starts. That's where the delamination comes from.

A coating that doesn't account for what's happening at the chemistry level is treating the symptom, not the cause. It will work — until it doesn't. And then the cycle starts again.

The right approach addresses the substrate first: converting that weak calcium hydroxide layer into something stable (densification), and forming a bond to the surface that isn't just mechanical grip on an unstable foundation (covalent bond chemistry).

We've covered both in our "Science of Protection" blog series. Our most recent post from September 4 ties them together — starting with the concrete itself and working outward.

Read the full article on our website: https://covaltechnologies.com/understanding-concrete-chemistry-why-concrete-always-needs-more-than-paint/

For those who don't always get the holiday off, we can make the job a little easier.

Happy Labor Day.

In a challenging economy, businesses are looking for smarter ways to reduce costs.

That means evaluating an investment not only by what it costs today, but by what it can save throughout its service life.

That’s why Coval Technologies was developed—to protect valuable assets, reduce ongoing cleaning and maintenance costs, and extend the life of treated surfaces.

Protect today. Save tomorrow.

Contact us to discover how Coval can reduce your long-term operating costs.

🌐 www.covaltechnologies.com

The question we get most often: "What actually makes Coval different from epoxy?"

The short answer is the bond — and more specifically, how each type of bond can fail.

Epoxy and most conventional coatings use mechanical adhesion. The coating flows into the texture of a prepared surface, cures into place, and grips. That grip depends on the surface being correctly prepared: clean profile, no oil, no silicone, no leftover curing compound. When prep is insufficient, the grip is compromised from the start. Over time, even a well-prepped mechanical bond can be worn down by traffic, UV, temperature changes, or moisture getting behind the film. When it lets go, it typically lets go at the interface — edges first, then delamination spreading inward.

Coval forms a covalent bond with the substrate — a chemical bond at the molecular level. Not a grip. A connection. At that interface, the coating and the surface are chemically joined.

Covalent bonding isn't unique to Coval — there are other products using similar chemistry. What makes Coval different is the density of bonding points: high cross-link density both within the coating film and at the substrate interface. That's what drives a 9H pencil hardness rating (ASTM D3363) — the top of the scale — versus H to 2H for most conventional coatings.

When a Coval coating wears in a high-traffic area, the answer isn't strip and redo. It's clean and recoat — a fresh coat over the existing one, because the covalent bond at the substrate is still there. No grinding back to concrete. No multi-day shutdown.

Worth noting: not everything in the Coval lineup works this way. Covals primers, densifiers, and sealers use mechanical adhesion or pe*******on — the same approaches that form the backbone of most professional coating programs. The right product depends on the substrate, the condition, and what the surface needs to do.

Read the full article on our website, or message us to talk through how this applies to a specific project.

Just a little refresh.

Most coating failures aren't product failures.

They're prep failures. And they're almost always preventable.

What surface prep actually includes:

✔ Substrate assessment — know what you're working with before you start

✔ Contamination removal — oil, silicone, curing compounds (you can't always see it, but it's there)

✔ Mechanical preparation — right profile for the coating system, not just whatever grinder is handy

✔ Moisture v***r testing — 72 hours that get skipped on every tight schedule

✔ Densification — required for polished concrete before guard coat application

Skip these steps and you've already decided how the job ends.

We broke down the full prep sequence in last weeks blog post, including what each step actually does and what it costs when it gets cut. Link here: https://covaltechnologies.com/why-surface-preparation-determines-everything-and-what-to-do-about-it/