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SikaSwell® S-2 | MCT CHEMICALS | SIKA PAKISTAN PRIVATE LIMITED

SikaSwell® S-2 is a water-activated, hydrophilic swelling sealant designed for waterproofing applications in construction joints, cracks, and penetrations. It expands upon contact with water, creating a permanent, reliable barrier that prevents water ingress. This unique product provides superior sealing properties for both new construction and repair projects, offering excellent resistance to water pressure and environmental conditions. SikaSwell® S-2 is typically used in combination with other waterproofing systems to enhance joint protection, ensuring long-term performance in exposed and submerged applications.

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Usage

SikaSwell® S-2 is ideal for a wide variety of applications, including:

  • Construction Joints: Sealing expansion joints and construction joints in concrete structures to prevent water penetration.
  • Basement Waterproofing: Sealing cracks and joints in basements to protect against moisture ingress.
  • Tunnels & Underground Structures: Offering waterproofing protection for joints in tunnels, subways, and other underground infrastructures.
  • Water Treatment Plants: Sealing joints in water treatment plants, ensuring that water does not leak through structural gaps.
  • Foundation Walls: Sealing joints and cracks in foundation walls of buildings to prevent water infiltration.
  • Manhole Seals: Providing reliable sealing of manhole joints to prevent water ingress.

Application:

  1. Surface Preparation: Clean and dry the surface to remove any dirt, debris, or old coatings that may affect adhesion. Ensure the surface is smooth and free of any oils or contaminants.
  2. Priming (if necessary): Apply a primer on porous surfaces to ensure good adhesion of the SikaSwell® S-2 sealant.
  3. Applying the Sealant: Apply SikaSwell® S-2 in a continuous bead along the joint or crack using a caulking gun or manual application. Ensure even coverage without gaps or voids.
  4. Water Activation: After the product has been applied and cured, activate it by exposing the surface to water. The sealant will begin to swell and create a tight, waterproof seal.
  5. Curing: Allow the sealant to cure as per the manufacturer’s instructions, typically within 24 hours for a complete bond.

Coverage Advantage:

SikaSwell® S-2 provides a high-performance sealing solution with a typical coverage rate of 8 to 10 linear meters per cartridge, depending on the width of the joint and application method. The product’s water-activated swelling feature ensures that it forms a long-lasting, reliable seal under high water pressure conditions. It provides effective waterproofing, reducing the need for frequent maintenance and protecting structures from water damage. This makes it an ideal choice for both new construction and repair applications

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