When a hangar floor fails, it doesn’t just look bad it becomes a liability. Delaminated coating, stained concrete, and slippery surfaces around aircraft aren’t cosmetic problems. They’re safety problems. The right floor coating eliminates those risks and turns your hangar into a space that actually works for you: bright, clean, chemical-resistant, and built to last.
Shirley sits right on the South Shore, and that coastal environment puts real stress on concrete. The humidity off Great South Bay doesn’t disappear when you close the hangar doors it works its way into the slab and pushes up from below. That moisture vapor pressure is one of the most common reasons epoxy floors fail within a few years of installation. A properly installed system, with moisture testing done before anything touches the floor, changes that outcome entirely.
Aircraft owners at Northeast Airpark also deal with 100LL avgas, Jet A fuel, and Skydrol hydraulic fluid on a regular basis. Standard coatings aren’t formulated for that kind of chemical exposure. Aviation-specific epoxy and polyaspartic systems are and the difference shows up not in the first month, but in year three, year five, and year ten when the floor still looks the way it did on day one.
We’re based in Bohemia, NY about 12 to 15 miles west of Shirley along Sunrise Highway. That’s not a technicality. It means when you have a question, need a warranty visit, or want someone to come assess your slab at HWV before committing to a system, that’s a realistic conversation, not a scheduling headache. We’re local to the Shirley area and the broader Suffolk County aviation community.
Danny Harmer, our founder and CEO, has over 40 years of personal installation experience. We didn’t build a franchise we built a specialty flooring company from the ground up, one that has installed floors in the White House, across the U.S., and internationally. The field supervisors and crew members who show up to your hangar have been with us for over a decade on average. That kind of continuity is rare in this trade, and it shows in the quality of the finished work.
We hold Sherwin-Williams High Performance Flooring and Res Tech certifications two of the most rigorous credentials in industrial resinous coatings. Every installer carries OSHA 40 certification, which matters when the job site is an operating airport like Brookhaven.
Every hangar floor project starts with an assessment, not an assumption. Before any coating goes down, we evaluate the concrete slab for moisture vapor transmission, surface condition, existing coatings or sealers, and any cracking or damage that needs to be addressed. In Shirley’s coastal environment, that moisture assessment isn’t optional it’s the step that determines whether your floor holds for fifteen years or starts failing in three.
Once the slab is assessed, we mechanically grind the surface using diamond tooling to create the adhesion profile the coating needs to bond properly. This is the step that separates a floor that lasts from one that peels. Skipping it or doing it poorly is the most common reason hangar floor coatings fail. After grinding, we apply the system in stages: primer coat, base coat, and a topcoat that meets NFSI non-slip requirements and NFPA 409’s noncombustible surface standard for aircraft storage and servicing areas.
If your operation at Northeast Airpark can’t afford extended downtime with your aircraft sitting on the ramp, polyaspartic systems offer a significantly faster return-to-service window often within 24 hours. The right system for your hangar depends on your use case, your slab condition, and your timeline. That’s a conversation that happens before any work is scheduled, so you know exactly what you’re getting and when you’ll have your floor back.
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Hangar floors at Brookhaven Airport aren’t just floors they’re part of a regulated environment. NFPA 409, the standard governing aircraft hangars, requires that the grade floor of aircraft storage and servicing areas be noncombustible. That eliminates a significant portion of standard epoxy products from consideration. The systems we install are specified to meet that requirement, which matters for commercial operators, FBO facilities, and aircraft owners who want their hangar to pass inspection without a problem.
Beyond code compliance, we select coating systems based on the actual chemical environment of your hangar. Skydrol-resistant formulations protect against hydraulic fluid breakdown. High-gloss, light-reflective finishes typically in white or light gray improve visibility of dropped tools, hardware, and fluid spills on the floor, which is a real operational safety benefit in a working general aviation hangar. The non-slip topcoat is NFSI-certified, meaning it’s been tested against a verifiable standard, not just described as “textured.”
For aircraft owners and operators throughout Shirley and the broader Suffolk County general aviation community, we match the system to the job not the other way around. Whether you’re coating a single T-hangar, a larger box hangar, or a maintenance bay, the chemistry, prep process, and topcoat selection are determined by your specific slab conditions, use case, and timeline. That’s how a floor gets installed correctly the first time.
It does and it’s one of the most important factors to account for before any coating is applied. Shirley sits on the South Shore of Long Island, flanked by Great South Bay and the Atlantic Ocean beyond Fire Island. That proximity to open water creates elevated ambient humidity and persistent moisture vapor pressure in concrete slabs, particularly in large, minimally heated hangar structures. When moisture vapor migrates upward through the slab and encounters a coating that was applied without proper moisture testing, the result is bubbling, delamination, and premature failure sometimes within the first year.
The fix isn’t a different coating it’s a proper pre-installation moisture assessment. Before any work begins on a hangar floor in Shirley, the slab needs to be tested so the right primer and coating system can be selected for the actual moisture conditions present. Skipping that step is the single most avoidable cause of floor failure in this area, and it’s a step that should be non-negotiable with any contractor you hire.
Skydrol is one of the most chemically aggressive fluids in aviation it’s a phosphate ester-based hydraulic fluid that will break down standard epoxy coatings over time. Jet fuel and 100LL avgas aren’t far behind. If your hangar at Brookhaven Airport sees regular aircraft maintenance activity, you need a coating system that’s been specifically formulated and tested for resistance to these fluids, not a product that’s been repurposed from a residential or commercial garage application.
Aviation-grade epoxy and polyaspartic systems use chemistry that’s designed to resist this kind of chemical exposure. We match the right system to your specific use case a hangar that sees occasional fuel drips is a different environment than a maintenance bay where Skydrol exposure is routine. During the assessment phase, we evaluate the actual conditions in your hangar so the coating selected is appropriate for what your floor is actually going to face, not just what looks good on a product data sheet.
Yes, if your hangar is used for aircraft storage or servicing. NFPA 409 is the standard on aircraft hangars, and it requires that the grade floor in aircraft storage and servicing areas be noncombustible. This isn’t a guideline it’s a code requirement that applies to commercial and FBO hangar operators, and it’s something that can come up during inspections or insurance reviews. Many standard epoxy products don’t meet this standard, which means a floor that looks fine visually may still create a compliance problem.
The systems we install are specified to meet NFPA 409’s noncombustible surface requirement. If you’re an operator at Northeast Airpark or managing a hangar facility in the Shirley area, this is worth confirming with any contractor before work begins. Asking for documentation that the proposed system meets NFPA 409 is a reasonable and important question and a contractor who can’t answer it confidently probably isn’t the right fit for an aviation facility.
Timeline depends on the system you choose and the size of the slab. For a standard epoxy system, you’re typically looking at a multi-day process one day for surface preparation and grinding, one to two days for coating application, and a cure period before the floor can handle the weight and point loads of aircraft. In total, most hangar floor projects require your aircraft to be out of the hangar for three to five days, depending on conditions.
If minimizing downtime is a priority which it often is for active pilots at HWV who don’t want their aircraft sitting on the ramp through a Long Island weather window polyaspartic systems offer a faster return-to-service, often within 24 hours of the final coat. Polyaspartic cures significantly faster than traditional epoxy and can handle traffic much sooner. The tradeoff is cost and application complexity, which is why the right system depends on your specific situation. That conversation happens during the assessment, before anything is scheduled.
Mechanical diamond grinding is what creates the surface profile the coating needs to bond to the concrete. Without it, even the best coating system is essentially sitting on top of the slab rather than bonded to it and in a coastal environment like Shirley’s, where moisture vapor is working against that bond from below, an unground surface is a near-guaranteed failure waiting to happen. Grinding opens up the concrete’s pores, removes surface contaminants, and creates the mechanical adhesion profile that allows the coating to penetrate and lock in properly.
If there’s an existing coating on your hangar floor, grinding is even more critical. Old sealers, prior epoxy applications, or curing compounds left over from the original concrete pour all need to be removed or profiled before a new system goes down. Applying a new coating over an old one without proper prep is one of the most common mistakes in this trade, and it’s exactly why floors installed by budget contractors often fail within a few years. The prep work is where the durability of a hangar floor is actually determined the coating itself is the last step, not the most important one.
For a standard single-aircraft T-hangar or box hangar in the Suffolk County area, epoxy hangar floor coating typically runs in the range of $3 to $6 per square foot, depending on the system selected, the condition of the existing slab, and the scope of surface preparation required. A 1,200 to 1,500 square foot hangar would generally fall in the $3,600 to $9,000 range. Larger box hangars or maintenance bays with more complex prep requirements will fall toward the higher end or above it.
Polyaspartic systems, which cure faster and are better suited for hangars where downtime is a concern, typically cost more than standard epoxy often in the $5 to $8 per square foot range. On Long Island, where labor and material costs run higher than national averages, it’s reasonable to expect pricing at the upper end of those ranges. The more useful way to think about cost is over the life of the floor: a properly installed aviation-grade system that lasts 15 to 20 years costs significantly less in the long run than a cheaper installation that fails in three to five years and requires full removal and reinstallation which, depending on the slab size, can cost as much as the original job.
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