Expansion and building joint sealing
Aged joint sealant loses adhesion at the substrate edge, so floor, wall, and walkway joints open and let water and debris into the structure.
What is failing
Aged joint sealant loses adhesion at the substrate edge and pulls away from the concrete. Floor, wall, and walkway joints open up and let water and debris into the structure. Water tracking through a failed joint corrodes rebar and undercuts the slab on either side.
How AAS does it
AAS cleans out the old sealant, preps the joint faces, and reseals expansion and building joints with a flexible compound that bonds to concrete, stone, and brick. The material cures cold and stays elastic so it moves with the joint instead of cracking. Belzona 2211 and 4521 support the flexible joint and substrate-repair work.
Typically applied with Belzona 2211, Belzona 4521, matched to the service conditions.
The joint flexes with the structure, keeps water out, and reopens to foot or wheel traffic the same shift.
How AAS delivers it
AAS performs Expansion and building joint sealing work for Manufacturing, Facilities, and Water & Wastewater operations across Baton Rouge and Louisiana, cold-applied and in place wherever possible, on your turnaround schedule. Crews are factory-trained Belzona applicators, the repair system is matched to the service conditions it will see, and urgent failures are covered by 24-hour on-call response. The result is a permanent, engineered repair that returns the asset to service without the cost or downtime of full replacement.
Related applications
Have equipment that needs to stay in service?
Tell us what is failing. We respond quickly, and we offer 24-hour on-call service.