Epoxy Over Old Coatings — Without Grinding Them Off
Our industrial bonding primer creates permanent adhesion between your old coating and new epoxy and covers bare concrete spots in the same coat. Also bonds to metal, wood, and pea gravel floors.
Our proprietary industrial-grade bonding primer lets you epoxy over any previous epoxy coating or paint — no grinding required. It also bonds to metal surfaces such as steel, iron, and aluminum, making it ideal for priming painted metal roofs before applying a roof coating.
This primer saves serious time and money by eliminating the need to grind off an existing floor coating. As long as the old coating is still well bonded and not peeling across the majority of the floor, you can prime right over it. If you applied a water-based or low-solids epoxy, chances are it's now peeling with bare spots showing — and unlike home improvement acrylic primers, our Bonding Primer covers both the surviving coating and the bare concrete spots in one application, then accepts heavy-duty two-part epoxies over it.
If your floor looks like the photo below, you have a pea gravel floor. Those dark spots are smooth, nonporous river stones — epoxy will not adhere to them properly without this primer. These floors are usually the result of a contractor bulking up the pour with stones to use less concrete.
It also primes all types of wood — great for wood stairs, landings, and cove bases. Remove any mill finish first with 100-grit sandpaper and rough up the surface. Coating over VCT, porcelain, or ceramic tiles? Use our Tile & Wood Coating System instead.
Once primed, finish the job with the right system for your floor: our Garage Floor Epoxy Kits for residential garages, the Commercial Epoxy Flooring System for shops and retail floors, Industrial Epoxy Flooring for forklift and heavy traffic, or browse All Epoxy Floor & Specialty Coating Systems to compare everything side by side.
Apply at the rate of 400 square feet per gallon. Can be brushed, rolled or sprayed. If applying over VCT tiles two coats are required.
Application of the primer is just like applying regular paint. Unlike acrylic primers this primer works over any coating and any bare concrete spots. Click on the blue link for step by step instructions on how to paint over an existing coating. The instructions are for going over an existing floor epoxy but it's the same concept no matter what you want to paint over. You want a clean surface and in the case of going over a previous floor coating you want to quickly rough it up with some light sanding. This will ensure a permanent bond between the two dissimilar coatings.
How To Paint Over An Existing Coating
Allow 3-4 hours of curing when topcoating with single component paint and 12- 24 hrs of curing prior to applying our 2 part epoxy coatings over it.
Many times a floor will have an epoxy coating on it that is still bonded to the floor really good but is just worn out or peeled off in a few spots. This primer will save you the trouble of having to grind off that existing floor coating. The reason you have to grind off any previous type of epoxy coating or paint on your floor is because most epoxies are not compatible with each other. You don't want to take the chance of applying a coating over another coating to find out that they won't stick together after you're done. Huge waste of time and money!
If your existing floor coating was a high quality epoxy and is still stuck to the floor and just worn out or peeled in a few spots you can go right over it. See the Application Instruction Tab for detailed instructions on how to do that.
Please note that if your floor coating is peeling up in a majority of places it is best to grind it all off. It means your floor preparation wasn't satisfactory or the coating you applied was low quality or both. This primer is not intended to fix issues related to low quality epoxy paint that was applied over a poorly prepared surface.
Also works when you need to apply the epoxy coating over metal, metal roofs or wood surfaces.
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