Project Spotlight: Transforming Industrial Builders’ Airplane Hangar with High-Performance Concrete Coating in Caldwell, Idaho

January 1, 2024

We recently had the pleasure of working with Industrial Builders at the Caldwell Airport to revitalize their newly built airplane hangar, covering an impressive 10,100 square feet. This project was all about providing a robust, functional flooring solution that could withstand the demands of a busy hangar while looking great. Our relationship began earlier this year when an office employee at Johnson Thermal Systems found us through a search for “Painters Near Me.” After being impressed with our interior painting work, the owner of Industrial Builders decided to have us quote for a concrete floor coating, leading to this exciting project.


Here’s What We Did:


  • Surface Preparation: We kicked things off with a thorough cleaning of the concrete and filled the saw joints using a semi-flexible polyurea joint filler. This preparation ensured a seamless and durable finish, which is crucial in a high-traffic area like an airplane hangar.
  • Layered Application:
  • First Coat: We applied Key 503 primer, which penetrates the concrete, limits off-gassing, and offers moisture protection.
  • Second Coat: Next, we added a 100% solids epoxy called Key Resin 515 in light grey, which serves as an intermediate body coat to enhance the floor's durability.
  • Final Coat: Finally, we topped it off with a high-performance, UV light-resistant aliphatic polyurethane coating, also in light grey with a glossy finish. To boost scratch resistance, we mixed aluminum oxide into the final layer, ensuring the surface would hold up well under the wear and tear of an active hangar.

Project Impact


The newly coated hangar floor not only enhances the aesthetics of the space but also meets the rigorous demands of an airplane hangar environment. By choosing high-performance coatings, Industrial Builders ensured a flooring solution that provides both durability and ease of maintenance, creating a safe and professional workspace.


Thank you to Industrial Builders for trusting Spray ’n Coat Painting with this significant project! We’re proud to support businesses throughout Caldwell, Meridian, and the Boise Metro area with our concrete coating services.


For more information about our commercial concrete coatings and other services, fill out a request form for your free quote today!

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At Spray ’n Coat Painting, we often get called in to finish what others couldn’t quite get right—and that was the case with this 2,000 sq. ft. concrete floor coating project at the Caldwell Airport terminal. The building, now home to a private charter company, needed a durable and clean finish to make the space more welcoming for employees and travelers. Project Background This terminal originally had carpet in several areas, and after it was removed, thick glue residue was left behind across the concrete floors. Our customer had hired another contractor to handle the coating work, but unfortunately, they lacked the necessary equipment and experience for the job. That’s when we stepped in to get things done right. Our Process To give the customer the clean, sealed finish he was hoping for, our crew tackled the job in several key steps: Joint Filler Replacement: We started by removing the old joint filler and refilling the seams. Heavy Grinding & Surface Prep: Using professional grinding equipment, we stripped away all glue residue and opened up the pores of the concrete to ensure a strong bond. Matte Polyurethane Coating: We applied a commercial-grade polyurethane sealer in a matte finish. This not only improved the look of the space but also provided a stain-resistant, slip-resistant surface that can stand up to heavy foot traffic. Why It Matters For a commercial space like this—where first impressions matter and safety is non-negotiable—the right prep and coating system makes all the difference. The finished floor is now sealed, low-maintenance, and ready to take on day-to-day traffic from both staff and customers.
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