Control joints in warehouse slabs are load-bearing seams, not just cracks. When left unfilled, forklift wheels drop into the gap repeatedly, chipping the edges until the joint becomes a pothole. Las Vegas Concrete installs semi-rigid polyurea filler that bonds to both edges, supports wheel load, and stops the spall cycle. Free written estimate on every project.
Concrete slabs are poured with control joints to manage cracking. The joint is a deliberate weak point where the slab is allowed to crack in a straight line as temperature and moisture shift the concrete. Without filler, the joint is an open gap. Forklift wheels rolling across that gap drop into the void, apply pressure to the joint edge, and chip away a small piece of concrete with each pass. Over weeks and months, the edge becomes rounded, then spalled, then the joint widens into a crater.
Semi-rigid polyurea filler fills the joint full-depth and bonds to both edges of the concrete. The slab can still move slightly at the joint (the polyurea flexes), but the edges are now supported and protected. Wheels roll across a continuous surface instead of dropping into a gap. The spall cycle stops. This is why warehouse floors with filled joints last longer and require less repair work over their lifetime.
Joint filling works as a standalone retrofit on existing slabs or as part of a new warehouse floor coating or forklift-rated epoxy system. Either way, the filler is the detail that makes the whole floor system durable.
Recent work
Installation sequence
The Joint Filling Process in Las Vegas
Saw and clean to depth
Each control joint is cut open with a specialty blade to full depth, removing all loose concrete, dust, old filler material, and contaminants so the new polyurea can bond directly to clean concrete on both sides.
Apply bonding primer
A two-part primer is brushed onto both joint edges where the polyurea will adhere, creating a permanent mechanical and chemical bond that prevents the filler from working loose under repeated forklift wheel impact.
Inject polyurea filler
Semi-rigid polyurea is injected into the joint to full depth, slightly proud of the slab surface, and allowed to cure to the manufacturer's working window before finishing.
Shave flush and finish
Once cured, the filler is shaved flush with the slab using a specialty blade so wheels roll across a smooth, continuous surface with no bump or lip at the joint.
ROI and timing
Why Joint Filling Saves Money Long-Term
Retrofit joint filling on an existing warehouse floor is one of the highest-return maintenance investments available. The work is fast (one or two visits), minimally disruptive (zone-by-zone install with traffic routed around work areas), and the cost is low compared to full floor coating. The prevented spall cycle saves the cost of spall repair many times over within the first few years of operation.
We install joint filler as a standalone retrofit or as part of a larger project. If your warehouse is planning new forklift-rated epoxy or standard floor coating, joint filling can be coordinated into the same schedule. Combining both services in one project saves time and creates a fully integrated floor system.
Semi-rigid polyurea, joint depth, retrofit vs install and forklift wheel impact.
Sealant is for weather barrier; semi-rigid filler is for load support. Joints need the filler to be hard enough to transfer wheel load across the joint without compressing, soft enough to flex slightly with slab movement. Polyurea hits that target; flexible sealants do not.
Yes, and it is one of the best investments any forklift warehouse can make. The retrofit install is fast, minimally disruptive, and prevents the next several years of joint-edge spalling for a fraction of the cost of repair.
Then warehouse floor repair on the spalled edges first, then joint filling to prevent it from happening again. We can do both in one project to address the failures and prevent recurrence.
Zone by zone over a single visit or two, with forklift traffic routed around the work zone for a few hours while each joint cures. The cure is fast (hours, not days) and operations resume in each zone as soon as cure completes.
A properly installed polyurea fill lasts the life of the slab in most warehouses. Re-fill at specific joints may be needed if a joint experiences exceptional movement, but full-floor re-fill is rarely required.
Client reviews
What Las Vegas Operations Say About Their Joint Filling
Retrofit joint fill on our existing floor before opening a new operations zone. The spalling we had been seeing every quarter has completely stopped. Best maintenance dollar we spent.
Z. U4
Warehouse Manager, Las Vegas
★★★★★
They explained the difference between sealant and filler clearly; the wrong material had been used before. Polyurea fill installed properly, forklift wheels roll across joints smoothly now.
Y. U4
Distribution Director, Henderson
★★★★★
Installed during a single weekend across our entire warehouse. Operations resumed Monday morning, joints have held perfectly through two years of daily forklift traffic.
Q. U4
Logistics Operations, Boulder City
★★★★★
Combined joint filling with floor coating in one project. The combined system has held with zero failures. Coordination saved scheduling time and the result is bulletproof.
X. U4
Operations Lead, North Las Vegas
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