Forspec ACTFLEX 5000 self-adhesive waterproofing membrane roll measuring 20m x 1m, reinforced for below-ground waterproofing, retaining walls, basements, podium decks, and concrete structures.
Be the first to review

ACTFLEX 5000 20m x 1m Self-Adhesive Waterproofing Sheet Membrane

Sale price$605.00
Sold out
or 4 interest-free payments with

ACTFLEX 5000 is a high-performance, self-adhesive waterproofing sheet membrane designed for use on retaining walls, below-ground foundations, and other critical waterproofing applications. This non-asphalt membrane features a self-adhesive salvage edge for seamless overlapping and easy installation without mess. Offering long-term protection, ACTFLEX 5000 can be applied to a variety of surfaces, including PVC foundation walls, concrete, masonry, and cementitious surfaces.

7-Day Money Back 7-Day Money BackGuarantee
Fast Dispatch Fast DispatchNext Business Day
Expert Advice Expert Advice(02) 8021 3517
Secure Checkout Secure CheckoutSSL Encrypted
Get it — —

Pickup currently unavailable at The Waterproofing Shop

Forspec ACTFLEX 5000 self-adhesive waterproofing membrane roll measuring 20m x 1m, reinforced for below-ground waterproofing, retaining walls, basements, podium decks, and concrete structures.

ACTFLEX 5000 20m x 1m Self-Adhesive Waterproofing Sheet Membrane

The Waterproofing Shop

Pickup currently unavailable

22/872 Canterbury Road
Roselands NSW 2196
Australia

+61280213517
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.

ACTFLEX 989 CWP High-Performance Cementitious Membrane ACTFLEX 989 CWP ACTFLEX 906 WPU Water-Based Polyurethane ACTFLEX 906 ACTFLEX FLEXTAPE 120mm x 20m ACTFLEX FLEXTAPE
1

Retaining Wall System

High performance negative pressure waterproofing for below ground structures.

ACTFLEX 989 CWP High-Performance Cementitious Membrane ACTFLEX 989 CWP ACTFLEX SuperBond 007 PVC Universal Primer 1 Litre ACTFLEX SUPERBOND ACTFLEX MESHTAPE 120mm x 20m ACTFLEX MESHTAPE
1

Tank Waterproofing System

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

ACTFLEX 989 CWP High-Performance Cementitious Membrane ACTFLEX 989 ACTFLEX 906 WPU Water-Based Polyurethane ACTFLEX 906 ACTFLEX FLEXTAPE 120mm x 20m ACTFLEX FLEXTAPE
1

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

Technical overview

ACTFLEX 5000 is a high-performance Class III self-adhesive sheet waterproofing membrane with a polymer resin base, reinforced with a cross-laminated high-density polyethylene film. The self-adhesive salvage edge creates watertight overlap seals, and the membrane can be applied in both wet and dry conditions. Compliant with AS4654.1-2012. Tested per ASTM D903, ASTM E154 (370N puncture) and ASTM D624.

Key applications

  • Basement walls
  • Planter boxes (root resistant)
  • Retaining walls
  • External lift shaft walls
  • Non-exposed rooftop areas
  • Underground & below-ground works
  • Projects where open-flame torching is prohibited

Surface suitability

  • Concrete (primed with ACTFLEX 300 series, or EP 250 if >4.5% moisture)
  • Masonry (primed)
  • PVC panel walls (lightly sanded & primed)

Primarily designed for non-exposed areas — continuous UV exposure can degrade the material. Suitable for static applications only; excessive joint or structural movement may exceed the membrane's capacity. Do not install in extreme cold or heat. Substrate moisture must not exceed 4.5% (use ACTFLEX EP 250 primer if higher).

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 5000 used for?
    Compatibility

    5000 is a self-adhesive HDPE-reinforced sheet membrane for below-grade waterproofing - basements, planter boxes, retaining walls, and root-resistant applications. Pressure-activated self-adhesion, no torching or solvents required.

  • What's the membrane construction?
    Performance

    5000 has a polymer resin layer with HDPE reinforcement (no asphalt). Total thickness 1.55mm including a 0.13mm surface film. Puncture resistance 370 N, elongation 310% transverse / 280% longitudinal.

  • How is it installed?
    Installation

    Lay the membrane against the substrate (no primer needed), peel the release liner, and press into place. The self-adhesive backing activates under pressure. 20 m² per roll. Apply at standard ambient temperatures.

  • Is it root-resistant?
    Compatibility

    Yes. The HDPE reinforcement layer is permanently root-resistant - ideal for planter boxes, green roofs, and below-grade applications adjacent to landscaped areas. Class III certified.

  • What chemicals does it resist?
    Performance

    5000 resists acids, alkalis, salts, and most aggressive groundwater chemistry. The HDPE chemistry is inert to most soil contaminants found in urban below-grade applications. No asphalt means no creep or odour.

You may also need