Bridging joints go beyond traditional joints

Bridging joints are the answer to maintenance and other situations where a traditional sealing joint is not effective. For example, in areas that need to absorb a great deal of movement or where the renovation of an old joint is a challenge. SABA offers various elastic, flexible bridging joint systems. Depending on the required performance criteria, these systems can be the perfect solution to your particular needs. We are happy to tell you more about this solution.

Dennis ter Veldhuis
Author Dennis ter Veldhuis Account Manager & EAS Adhesives Specialist
What is a bridging joint?

Sealing overloaded joints that are subject to intensive movements and repairing old bitumen and sealant joints using traditional methods is often technically difficult. Bridging joints are the answer here. A bridging joint is an overlapping, uninterrupted strip of elastic joint mass applied to the substrate. The joint mass is reinforced by a reinforcing mesh.

Elastic and flexible bridging joints are often used to guarantee liquid tightness at locations where there is vehicle traffic, such as parking decks. They ensure pathways are level and are capable of absorbing significant movements.

When is a bridging joint the best option?

Essentially there are four main reasons for making use of a bridging joint:

  • When the joint is too narrow to be able to absorb the required movements;
  • When it is necessary to work over existing situations, because the old sealant cannot or may not be removed (for example in case of asbestos);
  • When the edges of the substrate are damaged;
  • When a joint is difficult to reach.
A joint may not distort by more than 25%. Thanks to the use of separation tape in bridging joints, these joints have greater freedom of movement, allowing them to absorb a greater distorting force. As a result, even a joint of limited size can absorb significant movements and function as a durable, long-term seal. We are happy to assist you in making the necessary calculations in this regard.


Bridging joint systems in various situations

Due to their capacity of guaranteeing long-lasting liquid tightness, preventing leaks and increased ability to absorb movement, bridging joints are often an excellent solution in the following situations:

  • Main expansion joints in parking decks;
  • Joints in containment structures, pits and sediment storage basins;
  • Tank base connections;
  • Sewage water basins;
  • Transitions in viaducts and tunnels;
  • Repair of old joints and joints filled with bituminous products;
  • Expansion joints between walkway and balcony elements.

The SABA Sealflex system

The SABA Sealflex system is SABA’s bridging joint system. We offer multiple Sealflex versions based on various technologies. We will select the proper SABA Sealflex bridging joint system for your project, depending on your particular situation. 

All of our systems have a reference period of more than 25 years, which means that they have proven their durability in actual practice for more than 25 years. 

The size of the joint strip to be applied depends on the expected movement (performance criterion) and the shape (irregularity) of the underlying joints and bonding surfaces. Appropriate calculations will need to be completed for this in advance. Contact us for assistance in this area


Benefits of the SABA Sealflex system

The SABA bridging joint systems offer various benefits:

  • Can be applied in the desired width without interruption, whereby crossings and wall/floor connections can be integrated without any problem; 
  • Existing profiling, irregular joints, crack formations and transitions are tracked effortlessly;
  • Can durably seal joints subject to intense movement and repair complicated leaks;
  • Also available as a 2-component version for extra chemical resistance;
  • Can be used to bridge joints that are too narrow, as a result of which it is not necessary to saw cut the old joints. Old, defective and difficult-to-remove sealant or bitumen joints do not have to be removed;
  • Slightly damaged joint edges are eliminated;
  • Provide greater reliability through bonding surfaces that can easily be visually controlled;
  • Provide double assurance when implemented with a lower joint.

If you are interested in knowing more about our various systems and whether they are applicable in your specific situation, submit your request using the form below to come into direct contact with our adhesives and sealants specialists.

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