SWELLSEAL® 8V

Product Advantages

• Swellseal 8V has a proven track record in concrete structures subject to high water pressure.
• The composition of the compound creates a delayed initial swelling and makes Swellseal 8V safe to install in insitu concrete applications.
• Reversible swelling in case of wet-dry cycles with fast renewed swelling after the first cycle.
• Swelling capacity up to 8 times the original volume in contact with water.
• Will not sag when correctly placed.
• Easy to install by nailing or gluing with Swellseal Adhesives or MS Fixer.
• Due to its flexibility and high swelling capacity, Swellseal 8V can absorb small movements in the construction.
• Has a good all-round chemical resistance (*) and can resist petroleum, mineral and vegetable oils and greases.
• Swellseal 8V has a good impact resistance.

_{(*) For chemical resistance please contact your local GCP representative.}

Field of Application

• Sealing joints between tunnel segments.
• Swellseal 8V can be used for sealing joints between concrete precast elements, horizontal and vertical construction joints, sealing pipe penetrations, sealing concrete to steel joints, etc.
• For sealing construction joints in fresh concrete where concrete cover is at least 20 cm to all sides.

Storage

Swellseal 8V: unlimited in a dry place in its original packaging.

Swellseal Adhesive/Adhesive S/Adhesive P need to be stored in a dry and conditioned area. Storage temperature needs to be between 5°C and 25°C.

Shelf life: 1 year in the original closed packaging.

Accessories

To be ordered separately

• Swellseal Mastic WA
• MS Fixer
• Swellseal Adhesive
• Swellseal Adhesive P
• Swellseal Adhesive S (See respective Technical Data Sheets)

1. Type Selection

• Type F: For sealing joints between precast elements, horizontal and vertical construction joints, pipe penetrations and concrete to steel joints.
• Type S: For sealing joints between precast tunnel segments.
• Swellseal 8V can only function properly in a confined space. The expansion of Swellseal 8V will create a certain pressure, installation in the middle of the joint is preferred.
• Installation during heavy rain or in prolonged contact with water can result in a premature swelling of the strip, which should be avoided.
• Application surfaces should be level, dry, clean and free of oils, dust and laitance, etc.

2. Nail Application (insitu concrete construction joints)

• Nail application is only recommended in insitu concrete applications. For precast element and segment applications, it is recommended to glue Swellseal 8V strips due to concrete hardness.
• Swellseal 8V should only be applied to level and smooth surfaces. If possible, make a rebate of the same width as the selected Swellseal 8V profile during concrete pour using a wooden or metal strip. If this rebate can not be made into the poured concrete surface and the surface is rough, it is recommended to level the surface with Swellseal Mastic WA before installation of the Swellseal 8V strip.
• When nailing the strip into place, use nails with washers of a diameter smaller than the width of the Swellseal 8V strip. Use one nail every 20cm.
• Slight tension should be applied to the waterproofing strip during nailing to assure complete contact with the joint surface. Do not stretch the strip during application of this tension.
• The applicator must ensure complete contact of the strip with the joint surface during nailing. Pull the strip to ensure the correct tension without overstretching when nailing.
• Apply Swellseal Adhesive, Swellseal Adhesive P or Swellseal Adhesive S according to the instructions and consumptions in the respective Technical Data Sheet.
• Let Swellseal Adhesive, Swellseal Adhesive P or Swellseal Adhesive S cure according to the curing times specified in the respective Technical Data Sheet.
• Apply the Swellseal 8V strip to the substrate and apply a constant pressure.
• The force of the pressure is more important than the duration.
• Finish the installation by lightly tapping the strip with a rubber hammer without displacing the Swellseal 8V strip.

3. Application using MS Fixer (Dry or Moist Concrete Substrates)

• Apply a 5 x 10mm bead of MS Fixer in the middle of the joint.
• Press the Swellseal 8V strip into the fresh MS Fixer.
• Swellseal 8V strips can be installed around pipes, either by adhesion with MS Fixer or by connecting the ends with a steel wire.