SKIDCOMManorteq · Swellable waterbar
HydroBar Evo
The evolution of the swellable waterbar. Lighter, more flexible and more powerful than bentonite.
Highlights
More seal from a smaller bar.
Expansion
Swells up to 1000% of its original size in contact with water, depending on what's in the water.
Source: Manorteq product literatureSealing force
More than double HydroBar Original, from a bar a quarter of the size.
Source: Manorteq product literatureWet / dry cycles
Still expands the same after more than 35 cycles. It isn't fibrous, so it can't wash out.
Source: Manorteq product literatureHandling
Light and flexible.
Much lighter than bentonite, so it's easier to fix overhead and won't sag in the heat. Flexible enough to thread between rebar.
Where it's used
Where it's used
- Wall-to-slab construction joints
- Basements and retaining walls
- Water tanks and reservoirs
- Coastal and saline ground (up to 3% salt)
- Pipe penetrations
For higher salt concentrations, polluted ground or contact with slurry or manure, ask us first.
Application
Glued down, before the pour.
A summary of Manorteq's guidance. Follow the technical data sheet for your project.
- 01
Prepare
Place on smooth, clean, dust-free concrete or metal. Keep the bar dry and don't install in heavy rain.
- 02
Position
Keep it at least 80 mm from any exposed concrete surface.
- 03
Fix
Manorteq Fixing Glue is recommended, in full contact with no gaps. Otherwise use Fixing Wire with nails and washers at 250 mm centres, with SynMastic filling any voids underneath.
- 04
Join
Overlap ends by at least 100 mm, side by side, never stacked.
Technical data
Technical data
Values from Manorteq Ltd. Check the current technical data sheet before specifying.
| Size | 5 × 20 mm (H × W), 10 m lengths |
|---|---|
| Material | Hydrophilic synthetic rubber |
| Swelling | Up to 1000%, depending on water quality |
| Sealing force | 2.6 tonnes per metre |
| Wet / dry cycles | More than 35; returns almost to its original shape |
| Salt water | Suitable up to 3% salt concentration |
| Minimum concrete cover | 80 mm |
| Fixing | Fixing Glue (recommended), or Fixing Wire with nails and washers |
| Stocked in Accra | Yes — sizes on request |
Documents
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Official manufacturer documents, opened from the source so you always get the current version.
Questions
What project teams ask us.
HydroBar Original or HydroBar Evo?
Original is bentonite: physically bigger, fibrous as it swells so it reaches into fissures, with more ways to fix it. Evo is lighter and more flexible, seals with more than double the force, and handles salt water. Send us the detail and we'll recommend one.
Can it go on an uneven surface?
Yes, if the concrete is clean and as flat as possible. Fixing Glue must be in full contact with both the concrete and the bar, with no gaps. With Fixing Wire, fill every void underneath with SynMastic.
Can a HydroBar just be laid on the concrete?
No. Every HydroBar must be fixed securely so it can't move or lift when the concrete is poured onto it.
Will it interfere with 
?
No. Manorteq's ancillary products are developed to work with the waterproofing system.
Detailing construction joints?
Send the joint details and we'll recommend the waterbar and the fixing method.