SpECtite Swellseal Bentobar
Bentonite-based hydrophilic waterstop for saline conditions.
**SpECtite Swellseal Bentobar** is a specialized hydrophilic waterstop constructed from sodium bentonite and butyl rubber, designed to prevent water penetration in construction joints exposed to saline conditions. Its unique swelling properties allow it to expand significantly upon contact with water, forming a robust gel that effectively seals joints against hydrostatic pressure.
This versatile solution offers quick installation without the need for welding or jointing, making it ideal for various applications in concrete structures.
Technical Details
The **SpECtite Swellseal Bentobar** is an effective waterstop seal suitable for various critical applications: • Construction joint
• Pipe and cable penetrations
• New to existing concrete
• Sealing irregular concrete surfaces
• Pipe and cable penetrations
• New to existing concrete
• Sealing irregular concrete surfaces
The **SpECtite Swellseal Bentobar** offers a range of advantages that make it an ideal choice for construction projects requiring effective waterstop solutions. Its unique formulation and design features ensure reliability, ease of use, and adaptability to various conditions: • Quick and easy to install – does not require special intersections, on-site welding or jointing.
• Suitable for ground/saline water conditions.
• Safe and odour-free.
• Totally flexible.
• Surface fixed – no pre-formed chases required.
• Seals localised honeycombing and minor fractures.
• Suitable for ground/saline water conditions.
• Safe and odour-free.
• Totally flexible.
• Surface fixed – no pre-formed chases required.
• Seals localised honeycombing and minor fractures.
The SpECtite Swellseal Bentobar is characterized by specific technical properties that enhance its performance and reliability in various applications. The following table provides an overview of its key technical specifications:
| Specific gravity @25°C | 1.43 |
| Resistance to hydrostatic pressure | 4 bars |
| Swelling capacity (3.5% saline solution) | 180% |
| Service temperature | -20ºC to +75ºC |
| Bending radius at corners | 50mm |
| Colour | Red |
The SpECtite Swellseal Bentobar is designed for easy and effective application in various construction scenarios. Proper surface preparation and installation are key to achieving optimal performance:
Surface Preparation:All surfaces to which SpECtite Swellseal Bentobar is to be applied should be clean and free of standing water. Any loose or flaking concrete must be removed. The preferred practice of scabbling joints is recommended to ensure a smooth and stable application surface.
Application Steps:
Uncoil a length of SpECtite Swellseal Bentobar and apply it onto the concrete surface, ensuring that it is positioned inside the reinforcement cage with a minimum concrete cover of 75mm. Press the material firmly into place to cover any surface undulations.
In vertical installations, work from the base up to prevent any deformation or elongation during the process. It is essential to avoid overlapping the pieces. Cut the ends of adjoining lengths with a sharp tool to ensure a clean and square cut, and press them together for a close butt joint.
Fixing:
To secure SpECtite Swellseal Bentobar in place, use nailing guns with nails spaced approximately 300mm apart for proper fixation.
The SpECtite Swellseal Bentobar is conveniently supplied to meet your construction needs:
SpECtite Swellseal Bentobar is provided in standard size coils of 20 x 25mm x 5m long. A cardboard box contains 6 x 5m coils.
For detailed information regarding the warranty of SpECtite Swellseal Bentobar, please contact our SMCC team using any of the contact methods available on this page.
Product FAQ
SpECtite Swellseal Bentobar works by swelling upon contact with saline water, expanding significantly to form a robust gel that seals construction joints and prevents water penetration. This swelling capability allows it to resist hydrostatic pressures effectively, ensuring a reliable waterproof barrier in various applications.
SpECtite Swellseal Bentobar can be applied to clean, dry concrete surfaces that are free of standing water, loose material, or flaking concrete. It is suitable for use in construction joints and irregular concrete surfaces.
The installation requirements for SpECtite Swellseal Bentobar include ensuring surfaces are clean and free of standing water, removing any loose or flaking concrete, positioning it inside the reinforcement cage with a minimum concrete cover of 75mm, and securing it in place using nailing guns spaced approximately 300mm apart.
Using SpECtite Swellseal Bentobar provides several benefits, including quick and easy installation without the need for special intersections or on-site welding. It is specifically designed for ground and saline water conditions, ensuring effective sealing against water penetration. The product is safe, odor-free, and flexible, allowing it to adapt to various joint configurations. Additionally, it effectively seals localized honeycombing and minor fractures, enhancing the overall durability of construction joints.
Yes, SpECtite Swellseal Bentobar is specifically designed for use in saline water conditions.
SpECtite Swellseal Bentobar effectively seals construction joints, pipe and cable penetrations, new to existing concrete, and irregular concrete surfaces.
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