Precast concrete systems are modern construction solutions based on the off-site production of building components that are subsequently assembled on-site. Thanks to their high manufacturing quality, rapid installation, and standardized production processes, they are widely used in industrial buildings, logistics centers, commercial facilities, parking structures, sports venues, and infrastructure projects.
While the primary structural system of precast buildings is formed using mechanical connections, elastic sealing systems are applied to the joints between precast elements to protect against the ingress of water, air, and dust. In addition, various adhesive products and chemical anchoring systems are used to support installation and assembly operations.
Adhesives and sealants are commonly used in the following precast concrete applications:
Precast façade panel joints
Column and beam connection details
Reinforced concrete floor joints
Roof panel joints
Perimeters of windows and doors
Concrete repair applications
Cable and service penetrations
Expansion joints
Precast staircase installation
Concrete parapet and guardrail details.
Products used in these applications are expected to provide excellent adhesion to concrete substrates, sufficient elasticity to accommodate structural movement, and long-term resistance to outdoor environmental conditions.
Technologies Used
Polyurethane Sealants
Polyurethane sealants are among the most widely used elastic joint sealing materials in precast concrete construction.
They are valued for their excellent adhesion to concrete, high mechanical strength, movement capability, and outstanding weather resistance.
They are particularly suitable for panel joints and reinforced concrete structural joints.
Neutral Silicones
Thanks to their excellent UV resistance, neutral-cure silicones provide reliable long-term performance in exterior applications.
They are commonly used for durable sealing in façade details and around glass and aluminum framing systems.
Hybrid Polymer Technology
Hybrid polymer-based products offer significant advantages in prefabricated construction systems incorporating multiple building materials.
Their permanent elasticity enables them to accommodate structural movement while maintaining long-term performance.
Typical applications include concrete-to-metal joints, concrete-to-aluminum details, precast façade systems, and maintenance and repair applications.
Product ınformatıon
- Senta SILMAX, Senta POLMAX, Senta FOAMAX, SOUDAL Silirub Facade Product Group (Neutral Silicone), SOUDAL PU Sealant Product Group (PU), SOUDAL SoudaFoam Product Group (PU Foam)
