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Preparing Industrial Floors for Painting & Refinishing

Any facility, regardless of the industry, requires a durable, high-performing industrial floor system.  However, without the appropriate substrate preparation, the new flooring system may have compromised bond and be vulnerable to a variety of issues, including peeling, bubbling, bacteria harboring, and more. Adequately preparing an industrial or commercial floor slab to receive a new polymer coating is key for a high performing and long lasting flooring system.


Concrete Floor Preparation Steps

Professional concrete flooring contractors generally go through the following procedure when prepping a new or existing concrete floor slab for installation of a new epoxy resin coating system.

  1. Repair of any existing surface defects
  2. Remove old coatings or paint
  3. Remove of dirt, chemicals, grease and any contaminants
  4. Surface profiling
  5. Floor testing

Every concrete floor is different.  Professionally trained installers can identify the specific challenges a given slab poses and determine the best method for preparing and installing a new floor, and address any concerns.  It’s important to let your manufacturer-approved installer know about the traffic patterns and typical activity that takes place in the room, as well as inform them about the chemicals, acids or caustics, to which the floor gets exposed.  These factors all help ensure that your facility’s concrete floor substrate receives the correct preparation method to successfully bond with the new coating.


Photo Courtesy of: Epoxy, Inc., of FL”

Methods Used in Preparing Concrete Floors

Each floor and its environment is unique. Professional installers employ a variety of mechanical methods to successfully prepare and profile concrete floors including:

  • Shot Blasting – Typically used to roughen concrete surfaces or to remove thinner polyurethane coatings, tile mastics and brittle coatings such as epoxy of MMA (methyl methacrylate) from 10 mils to 1/8th inch thick.
  • Diamond Grinding – Provides the smoothest finish among mechanical profiling methods.  Diamond grinding may be used on concrete floor surfaces to remove deposits, smooth surface profile or to level uneven joints or high spots.  Solid carbide cutters are employed to remove thicker coatings.
  • Scarification – Used to remove a layer of concrete up to ¼ inch thick, to expose a new, clean surface, to profile a surface or to add grooves for a non-slip surface.
  • Scabbling – Used remove a layer of concrete thicker than is possible through scarification and is best for removing spalling or deteriorated concrete.

As a last step to preparing a floor, installers will prime the concrete substrate to help ensure overall performance of the new coating. Depending on the type of floor coating system, application method and facility environment, installers will choose the most appropriate primer for the project at hand.

The correct and adequate preparation of a concrete floor is crucial to the performance and life of the floor. Professional epoxy floor installers are trained and equipped to take care of any challenges posed by a new flooring system or re-coating job.

Contact us for a free site visit and let our professional installers help you find the right flooring solution!

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