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Rigid Polyurethane Foam Sealant (DK-710)

Rigid Polyurethane Foam Sealant (DK-710)

The Rigid Polyurethane Foam Sealant is a hydrophobic, single-component rigid foam sealant designed for effective use in large cracks and leak areas of concrete structures. It provides reliable waterproofing performance regardless of the amount of leakage and offers excellent applicability in both humid and dry environments. It is also effective for use in locations with crack widths ranging from 0.3 to 0.8mm.
Key Features

Excellent Penetration: Its low viscosity allows it to deeply penetrate cracks, maximizing waterproofing performance.

Rapid Reactivity: Enables immediate waterproofing treatment, making it easy to remove any excess material after curing.

Durability: Minimizes shrinkage after curing, ensuring stable waterproofing performance over time.

Strong Adhesion: Bonds firmly to concrete surfaces, guaranteeing long-term waterproofing.

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Technical Information


Category

Rigid Polyurethane Foam Sealant Sealing (DK-710)

Content

Mix Ratio

Single-component Dark brown

Appearance

Dark brown

Specific Gravity

1.1 ± 1.15

Viscosity

300~500

Tensile Shear Adhesion Strength

3.8

Elongation (%)

35

Packaging Unit

20kg/10kg


Rigid Polyurethane Foam Sealant Application


  1. Leak Inspection:
    1. To accurately address the leakage issues in a structure, the inspection process involves:
      1. Extent of Leaks: Measuring the size and extent of cracks to assess the severity of the problem.
      2. Leakage Amount: Quantifying the amount of leakage to determine the necessity of waterproofing measures.
      3. Crack Angle: Assessing the direction and angle of cracks to choose the appropriate injection method.
      4. Crack Depth: Evaluating how deeply cracks penetrate into the structure.

  2. Drilling and Injection Port Installation:
    1. Based on the inspection results, drill holes at the identified cracks or gaps. Insert and securely fix metal injection ports into the drilled areas to prepare them for the injection process. These ports help ensure proper delivery of the expanding foam.

  3. Injection Process:
    1. When injecting the polyurethane foam, it reacts instantly with any moisture inside the cracks, expanding rapidly. This reaction forms a high-density foam that completely seals the cracks. The foam penetrates deeply into the cracks, providing effective waterproofing.

  4. Finalization:
    1. After the injection, check for any remaining leaks. If any leakage persists, inject additional polyurethane foam into the affected areas to ensure complete waterproofing. Finally, tidy up the work area and perform any necessary finishing touches to complete the job.

      For more details, please refer to the Technical Data Sheet (TDS) or the specifications.
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