Forspec Actflex PU200 Single Line Semi Hard Foam 20kg hydrophobic polyurethane injection foam for sealing concrete cracks, active water leaks, joints, and voids in waterproofing and structural repair applications
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ACTFLEX PU200 Hydrophobic 20kg

Sale price$550.00
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ACTFLEX PU200 is a single-component, hydrophobic polyurethane injection resin designed for structural concrete crack sealing and leak remediation. Upon injection, it reacts with water to form a rapid-expanding, closed-cell foam structure, effectively blocking water ingress.

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Forspec Actflex PU200 Single Line Semi Hard Foam 20kg hydrophobic polyurethane injection foam for sealing concrete cracks, active water leaks, joints, and voids in waterproofing and structural repair applications

ACTFLEX PU200 Hydrophobic 20kg

The Waterproofing Shop

Pickup available, usually ready in 24 hours

22/872 Canterbury Road
Roselands NSW 2196
Australia

+61280213517
ACTFLEX PU200 Hydrophobic 20kg
$550.00
Add it to your kit

Frequently bought together

Waterproofing Systems Built for Australian Conditions

Engineered to perform in the most demanding environments.

Pool Waterproofing System

Designed for permanent water immersion. Chlorine, salt & UV stable.

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Retaining Wall System

High performance negative pressure waterproofing for below ground structures.

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Tank Waterproofing System

Potable water safe. Ideal for concrete water tanks and reservoirs.

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System Build-Up Guide

Correct application makes all the difference.

View All Details

Pool System Build-Up

  • 1 Concrete Substrate
  • 2 Crack Repair (if required)
  • 3 ACTFLEX FLEXPLUS
  • 4 ACTFLEX HYDROPLUG
  • 5 ACTFLEX AT MESH
  • 6 ACTFLEX 988 CWP (2 Coats)
  • 7 Tile Adhesive
  • 8 Pool Finish
Pool System Build-Up

Retaining Wall System Build-Up

  • 1 Concrete Substrate
  • 2 Crack Repair (if required)
  • 3 ACTFLEX MS PRO
  • 4 ACTFLEX AT MESH
  • 5 ACTFLEX 988 CWP (2 Coats)
  • 6 Protection Board (Optional)
  • 7 Drainage System
  • 8 Backfill
Retaining Wall System Build-Up

Tank System Build-Up

  • 1 Concrete Substrate
  • 2 Crack Repair (if required)
  • 3 ACTFLEX FLEXPLUS
  • 4 ACTFLEX AT MESH
  • 5 ACTFLEX 988 WMP (2 Coats)
  • 6 Protective Coating (Optional)
  • 7 Water
Tank System Build-Up

Real Projects. Real Results.

View All Projects
  • Pool Renovation Pool Renovation Before After

    Pool Renovation

    Gold Coast, QLD

  • Below Ground Retaining Wall Below Ground Retaining Wall Before After

    Below Ground Retaining Wall

    Sydney, NSW

  • Concrete Water Tank Concrete Water Tank Before After

    Concrete Water Tank

    Perth, WA

  • Commercial Podium Commercial Podium Before After

    Commercial Podium

    Melbourne, VIC

  • Before After

    Swimming Pool Construction

    Brisbane, QLD

How to install

Watch the install

Step-by-step from prep to top coat. Filmed on the tools, not in a studio.

Watch the install poster

Why Choose

The Waterproofing Shop?

We supply premium waterproofing products backed by expert advice, fast service and real-world experience.

100% Australian Owned & Operated 100% Australian
Owned & Operated
30+ Years in the Waterproofing Industry 30+ Years in the
Waterproofing Industry
Thousands of Products in Stock Thousands of Products
in Stock
Fast Shipping Australia Wide Fast Shipping
Australia Wide
Expert Technical Support Expert Technical
Support

Frequently asked questions

View all FAQs
  • What is ACTFLEX PU200 used for?
    Compatibility

    PU200 is a hydrophobic polyurethane crack injection resin used for sealing structural concrete cracks and leak remediation in subterranean and moisture-exposed concrete - tunnels, basements, lift shafts, foundations, and below-grade walls.

  • How does hydrophobic foam injection work?
    Performance

    PU200 reacts with the water present in the crack to expand into a closed-cell hydrophobic foam, sealing the crack from the inside out. The expansion creates pressure that forces resin into every void.

  • Specifications?
    Installation

    Viscosity 500-600 mPa·s at 25°C, density 1.12-1.2 g/cm³. Foaming time 180-360 seconds. Expansion ratio approximately 0.6 with water present. Elongation greater than 100% (thick) or 250% (thin film).

  • What equipment do I need?
    Compatibility

    Use 10mm or 13mm Forspec injection packers, gun coupler, and the INJEXA SWM 1300 (or SWM 1500 for deeper cracks) pump system. Single-component, no mixing required.

  • Shelf life and safety?
    Performance

    12-month shelf life when stored sealed. Solvent-free, low-odour, zero shrinkage after foaming. Safe for use in confined spaces with appropriate PPE per SDS.

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