SikaSwell® S-2

• Contributes towards satisfying Indoor Environmental Quality (EQ) Credit: Low-Emitting Materials under LEED® v4

• Contributes towards satisfying Materials and Resources (MR) Credit: Building Product Disclosure and Optimization — Sourcing of Raw Materials under LEED® v4

• Contributes towards satisfying Materials and Resources (MR) Credit: Building Product Disclosure and Optimization — Material Ingredients under LEED® v4

• Resistance to water pressure and durability SikaSwell® A2010, SikaSwell® S-2, BBA, Certificate No.13/4994

1-part polyurethane, moisture curing

12 months from date of production

The Product must be stored in original, unopened and undamaged packaging in dry conditions at temperatures between +5 °C and +25 °C.

Always refer to packaging.

Refer to the current Safety Data Sheet for information on safe handling and storage.

STAND-ALONE SOLUTION

WITH A SIKASWELL® PROFILE

Note: The Product expands when it comes into contact with water, a process that takes several hours. When totally dry, the Product shrinks to its original dimensions. Upon further contact with water, the Product expands again.

The pressure developed by the material depends on the stiffness of the surrounding concrete structure. The stiffness is influenced by concrete quality, voids, gaps and other weaknesses. If the concrete structure is in perfect condition, the material can create a swelling pressure of > 10 bar.

Dry or matt damp. Do not apply in construction joints with standing water.

Place SikaSwell® profiles onto SikaSwell® S-2 within a maximum of 30 minutes.

Consumption depends on the roughness and absorbency of the substrate.

Note: Consumption data is theoretical and does not allow for any additional material due to surface porosity, surface profile, variations in level, wastage or any other variations. Apply the Product to a test area to calculate the exact consumption for the specific substrate conditions and proposed application equipment.

The substrate must be sound, clean, dry or matt damp and free from all surface contaminants that could impair the adhesion of the sealant.

EXISTING CONCRETE

Rough surfaces are susceptible to leaking. If the surface is too irregular for SikaSwell® S-2 to effectively level, the irregularities must be eliminated. Prior to applying SikaSwell® S-2 and the SikaSwell® A or SikaSwell® P profile or Sika® Hydrotite CJ-Type, smooth the area with a suitable Sika® leveling mortar or through mechanical means.

FRESHLY CAST CONCRETE

Freshly cast concrete can be smoothed with a batten where SikaSwell® S-2 is to be placed.

IMPORTANT

Poor Product performance due to insufficient concrete covering the SikaSwell® profile or Sika® Hydrotite CJ-Type

The SikaSwell® profile or Sika® Hydrotite CJ-Type must be covered with concrete that withstands the pressure created when the SikaSwell® profile or Sika® Hydrotite CJ-Type expands. If the concrete cover is insufficient, in case of low density concrete or voids, the SikaSwell® profile or Sika® Hydrotite CJ-Type will not be able to perform its waterproofing function effectively.

1. Place the SikaSwell® profile or Sika® Hydrotite CJ-Type in the centre of the covering concrete structure.
2. In reinforced concrete, apply a minimum cover of 8 cm on both sides of the SikaSwell® profile or Sika® Hydrotite CJ-Type.
3. In unreinforced concrete, apply a minimum cover of 15 cm on both sides of the SikaSwell® profile or Sika® Hydrotite CJ-Type.

SEALANT WITH A SIKASWELL® PROFILE

1. Apply the SikaSwell® S-2 adhesive in a narrow bed onto the prepared substrate, extruded in a triangular section ~12 mm wide and ~12 mm deep.

   Note: Extrude enough material to level the roughness of the substrate.

2. Press the SikaSwell® profile or Sika® Hydrotite CJ-Type firmly into the freshly applied SikaSwell® S-2.

   Note: Place the SikaSwell® profile or Sika® Hydrotite CJ-Type within a maximum of 30 minutes (+23 °C / 50 % r.h.). Ensure that full and continuous contact between the SikaSwell® S-2 adhesive and both the SikaSwell® profile or Sika® Hydrotite CJ-Type and the substrate is achieved.
3. Allow SikaSwell® S-2 to harden for at least 12 hours before placing concrete. For pouring height > 50 cm, allow SikaSwell® S-2 to harden for at least 24 hours before placing concrete.
4. Protect the SikaSwell® S-2 and the SikaSwell® profile or Sika® Hydrotite CJ-Type against water – for example, rain – until the concrete is placed.
5. When placing the concrete, compact the fresh concrete well around the SikaSwell® profile or Sika® Hydrotite CJ-Type to achieve dense concrete without any honeycombing or voids.

SEALANT AS STAND-ALONE SOLUTION

1. Apply SikaSwell® S-2 in a triangular bead onto the prepared substrate.

   Note: Use a triangular nozzle, or cut the nozzle, to obtain a regular triangular extrusion section. Apply SikaSwell® S-2 according to the dimensions specified in the table.
2. Ensure that full and continuous contact between the SikaSwell® S-2 and the substrate is achieved.
3. Allow SikaSwell® S-2 to harden for at least 12 hours before placing concrete. For pouring height > 50 cm, allow SikaSwell® S-2 to harden for at least 24 before placing concrete.
4. Protect the SikaSwell® S-2 against water – for example, rain – until the concrete is placed.

Clean all tools and application equipment with Sika® Colma Cleaner immediately after use. Hardened material can only be removed mechanically.