hydrohalt, sealux n silicone backer rod

HydroHALT is an advanced upstand seal for
shower trays and baths that is higher performing
and more versatile than ‘stick-on’ butyl adhesive strips

Here in Sealux, sealing joints is our obsession. The HydroHALT Sealing System is innovative in design but traditional in its use of proven materials and best practice installation methods.

HydroHALT is an innovation leap that offers clear benefits over butyl adhesive stick-on seals in terms of material composition, installation versatility and product performance.

Sealux is a designer, manufacturer and distributor of patented shower tray and bath sealing systems. We manufacture a range of seals under our own brands and the trademarks of leading suppliers in the ‘shower’ market who have chosen Sealux as their joint seal partner.


Download the HydroHALT Brochure

hydrohalt brochure thumbnail

Specifiers! Spec up on your shower seals

Architecture Ireland June 2016


Check out how simple HydroHALT is to install

Install during installation of tray or bath

• Simple to Install

• New & Existing Installations

• Regular, Slimline & Upstand Trays

Install after installation of a tray or bath

• Flexible & Durable

• Perfect with Liquid & Mat Waterproof Tanking Systems


Installation Options

Installing HydroHALT to seal upstand free shower trays

1. Install HydroHALT with a stick-on backer rod during installation of a tray or bath.

2. Install HydroHALT with a fleeced waterproofing membrane over the adjacent shower walls

3. Install HydroHALT into an existing 5mm ledge/wall joint using a round backer rod.

4. Install HydroHALT without a backer rod during or after installation of a tray or bath.

5. Install HydroHALT around low profile shower trays as low a 6mm high.

6. Retro-install HydroHALT over a ledge/wall joint


Installing HydroHALT to seal upstand shower bases, pans and bath tubs

7. Install HydroHALT over an upstand shower base wherein the backer board is located above upstand.

8. Install HydroHALT over an upstand shower base wherein the backer board is located outside upstand.

9. Install HydroHALT over a shower base with a sloping perimeter upstand.


Installing HydroHALT to seal (non-water sensitive) shower wall panel/ledge joints

10. Install HydroHALT behind 6mm lightweight pvc shower wall cladding.

11. Install HydroHALT behind 10/12mm lightweight pvc shower wall cladding.

12. Install HydroHALT with non-water sensitive solid core shower wall panels.


Installing HydroHALT to waterproof ‘tile over’ & ‘tile ready’ shower bases with upstand

Step a: Install the shower base leaving a 3mm joint between the shower base and adjacent walls and floor. Fill the joint with flexible silicone.

Step b: Lay the HydroHALT strip over the joint in a bed of silicone adhesive ensuring the fleece free (siliconized) strip face engages the shower base.

Step c: Tank the shower walls with a liquid or fleece waterproofing membrane extending it down over the HydroHALT strip.