Sealing applications are among the fundamental assembly processes used in transportation vehicles to prevent the ingress of water, air, dust, moisture, chemicals, and other environmental contaminants. In modern automotive and transportation engineering, sealing systems do far more than provide environmental protection—they also contribute to body stiffness, vibration control, corrosion resistance, acoustic performance, and long-term durability.
A wide variety of sealing applications are employed in passenger cars, commercial vehicles, buses, trailers, motorhomes, rail vehicles, and marine vessels. Typical examples include body joints, panel seams, roof assemblies, door perimeters, window installations, service access panels, ventilation systems, cable penetrations, lighting assemblies, and numerous equipment mounting interfaces.
Elastic adhesives and sealants create flexible joints capable of accommodating the movement of dissimilar materials, thereby reducing the risk of cracking and joint separation. They also completely fill cavities and joint gaps, preventing the ingress of moisture and contaminants while helping to minimize corrosion at critical connection points.
Products used in sealing applications are expected to provide high elasticity, long service life, excellent UV resistance, superior water and chemical resistance, stability under temperature fluctuations, and outstanding adhesion to a wide variety of substrates.
Technologies Used
Polyurethane Technology
Polyurethane-based elastic adhesives and sealants are used for body joints, panel assemblies, and movement joints requiring high mechanical strength and permanent flexibility.
They retain their elasticity under dynamic loading conditions, providing reliable long-term sealing performance throughout the vehicle's service life.
Silicone-Based Sealing Systems
Silicone sealants are preferred for applications requiring excellent heat resistance, outstanding UV stability, and long-lasting elasticity.
They provide reliable performance around glazing systems, lighting assemblies, and areas exposed to significant temperature fluctuations.
Butyl-Based Sealing Systems
Butyl-based sealants are used in applications requiring an effective barrier against water and moisture thanks to their exceptionally low water vapor permeability and permanently plastic characteristics.
They are particularly suitable for enclosed joints and serviceable assemblies where future disassembly may be required.
Hybrid Polymer Technology
Hybrid polymer-based elastic adhesives and sealants are widely used in transportation sealing applications because they combine excellent UV resistance, low shrinkage, long-term durability, and outstanding adhesion to a broad range of substrates.
Product ınformatıon
- Senta SILMAX, Senta POLMAX, Senta BONMAX, SOUDAL Silicone Product Group, SOUDAL Butyl Product Group, SOUDAL SoudaFlex Product Group (PU), SOUDAL SoudaSeal Product Group (Hybrid Polymer)
