Control joints in warehouse slabs are load-bearing seams. Forklift wheels crossing an unfilled joint compress the edges, chip the concrete, and create a spall that grows with every pass. Regina Concrete fills those joints with semi-rigid polyurea that bonds to both edges and supports wheel load. The result is a continuous surface that stops the spall cycle before it starts.
Concrete slabs are poured with control joints to manage shrinkage and temperature movement. The joint is a deliberate weak point where the slab is allowed to crack in a straight line. In a warehouse, that joint becomes a liability the moment forklift traffic starts. Each wheel that crosses the joint drops slightly into the gap, applies pressure to the edge, and chips away a small piece of concrete. Over weeks and months, the edge becomes rounded, then cracked, then a full spall.
Semi-rigid polyurea filler bonds to both sides of the joint and fills the gap completely. The slab can still move slightly (the polyurea flexes with temperature), but the edges are now supported and protected from wheel impact. The filler is shaved flush with the slab surface so wheels roll across a continuous plane. When installed as part of a new warehouse floor coating or forklift-rated epoxy system, joint filling is what makes the floor actually last.
Retrofit filling on existing floors is equally effective. Before spalling becomes severe, filling the joints prevents years of future damage. See warehouse floor repair if spalling has already started, or pair both services in one project. Our industrial concrete team can coordinate the sequence.
Recent work
Installation sequence
The Four Steps to Fill Warehouse Joints
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 to clean concrete on both sides.
Apply bonding primer
Both joint edges receive a bonding primer that ensures the polyurea adheres permanently and cannot work loose under repeated forklift wheel load over the years.
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
The cured 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.
Retrofit vs new install
Why Joint Filling Is a Smart Maintenance Move
Filling joints on an existing warehouse floor is one of the highest-return maintenance investments available. The work is fast (a single visit for most facilities), minimally disruptive (zone-by-zone with traffic routed around the work area), and the cost is low compared to full floor coating. Within a few years, the prevented spall repairs pay for the filling many times over.
We install joint filler as a standalone retrofit on existing floors or as part of a new floor project. If your warehouse is getting a new forklift-rated epoxy or standard warehouse floor coating, coordinate the joint filling in the same project to save scheduling time and ensure the systems work together. Existing floors with early spalling can be repaired and filled in one visit.
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 Regina 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, Regina
★★★★★
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, Regina
★★★★★
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, Emerald Park
★★★★★
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, White City
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