Dunaseal is a brand name for a type of dilatation gap seal used in construction and civil engineering applications. Dilatation gap seals, also known as expansion joint seals, are designed to accommodate the movement of building materials caused by thermal expansion and contraction, seismic activity, settlement, or other factors. These seals help to prevent the ingress of water, debris, and contaminants into the gaps between building components while maintaining structural integrity. Here’s an overview of Dunaseal dilatation gap seals:

1. Composition: Dunaseal dilatation gap seals are typically made from elastomeric materials such as rubber or synthetic polymers. These materials are chosen for their flexibility, resilience, and durability, allowing them to withstand the stresses and movements associated with building expansion and contraction.

2. Design: Dunaseal dilatation gap seals are designed to be installed within the gaps or joints between building components, such as concrete slabs, walls, floors, or bridges. They are available in various shapes and profiles to accommodate different types of joints and movement requirements.

3. Functionality: Dunaseal dilatation gap seals function as flexible barriers that expand and contract with the movement of building materials, while maintaining a watertight and airtight seal. They help to prevent water infiltration, reduce noise transmission, and protect structural elements from damage caused by moisture or debris ingress.

4. Installation: Dunaseal dilatation gap seals are installed during the construction or renovation of buildings, bridges, highways, or other structures. They are typically placed within the joint or gap between adjacent building components and secured in place using mechanical fasteners, adhesive bonding, or compression fittings.

5. Applications: Dunaseal dilatation gap seals are used in a wide range of construction and civil engineering applications where movement joints are required. They are commonly found in buildings, parking garages, stadiums, airports, bridges, highways, and other infrastructure projects.

6. Advantages: Dunaseal dilatation gap seals offer several advantages, including:

   • Flexibility to accommodate various types of movement.
   • Resistance to weathering, UV exposure, chemicals, and aging.
   • Ease of installation and maintenance.
   • Compatibility with a wide range of building materials and construction methods.
   • Long service life and durability in harsh environmental conditions.

7. Standards and Certification: Dunaseal dilatation gap seals may comply with industry standards and specifications, such as ASTM (American Society for Testing and Materials) standards, European Union CE marking, or local building codes and regulations.

Overall, Dunaseal dilatation gap seals provide effective and reliable solutions for accommodating building movement and maintaining the integrity of construction joints in a variety of applications. Proper selection, installation, and maintenance of these seals are essential to ensure optimal performance and longevity in construction projects.