What's in the PU200 Advanced Crack Injection Kit?

The Advanced PU200 Kit is built around the ACTFLEX PU200 hydrophobic polyurethane injection resin - includes the SWM 1500 pump, hose, handle, 10mm and 13mm packer selection, gun couplers, and a starter quantity of PU200.

What is PU200 specifically used for?

PU200 is a hydrophobic polyurethane that reacts with moisture to form a closed-cell foam, sealing active leaks and blocking water ingress permanently. Ideal for live water infiltration through cracks, joints, and pipe penetrations.

How does hydrophobic foam injection work?

Inject PU200 into a wet crack - the resin reacts with the water to expand into a foam that seals the crack from the inside. The expansion creates pressure that forces resin into every void, achieving complete penetration.

Can the Advanced kit handle other resins too?

Yes. The pump, hose, packers, and couplers are universal - you can also run PU300, PU500, Injectswell, ER300, Crack Pro 1200, and other Forspec resins through the same equipment. Flush thoroughly between resin types.

Where is PU200 typically specified?

PU200 is specified for below-ground waterproofing remediation (basements, lift shafts, retaining walls), active leak repair, and any wet crack injection. Compliant with relevant Australian Standards for concrete waterproofing repair.

Crack Injection Starter Kit Advanced - Professional Crack Injection System

Be the first to review

Starter Kit - Crack Injection System Advanced

$4,040.00

$4,607.95

LIMITED TIME DEAL

SAVE $567.95

or 4 interest-free payments with

Stops active water leaks in concrete. ACTFLEX PU200 foams 8 to 20 times on contact with water.

This kit is built around a 20 kg pail of ACTFLEX PU200, a one-component, solvent-free hydrophobic polyurethane injection resin. Pump it into a leaking crack and it reacts with the water to form a closed-cell foam that fills the crack and blocks the flow. It is a water-stopping resin, not a structural repair.

What's in the kit

ACTFLEX PU200 hydrophobic polyurethane injection resin, 20 kg pail

The PU200 data sheet calls for a single-component pump rated for polyurethane resins, 10 mm mechanical packers with non-return valves, a 10 mm drill bit, a 10 mm T-handle wrench, urethane thinner and pump cleaning oil.

Where to use it

Concrete crack injection, structural and non-structural elements
Basements: foundations, retaining walls and slabs
Tunnels, subways and underground services
Dams and reservoirs under hydrostatic pressure
Manholes, pits and utility vaults

Why buy the kit

One component. No mixing ratios on site
Solvent free and low odour, made for basements and tunnels
Expands 8 to 20 times depending on water contact
Low viscosity gets into fine cracks and porous concrete. No shrinkage
Bond strength to concrete greater than 2.28 MPa. Full reaction and stable seal in 24 hours
10 year Forspec product warranty on the resin, supply only

Coverage

No fixed rate per metre. Consumption depends on crack width, depth and voids. Estimate from crack volume and confirm by a trial injection on the first section. Drill 10 mm holes at up to 200 mm spacing, angled at 45° to meet the crack 60 to 100 mm deep.

Not for

Structural crack bonding, dry cracks that are not pre-wetted through the packers, substrate or material below 10°C, drinking water structures (not certified to AS/NZS 4020), exposed finishes (not UV stable), or live movement joints. Classified hazardous: gloves, eyewear, and respiratory protection where ventilation is limited.

All times at 25°C and 50% RH.

Expands 8-20 times on contact with water to seal active leaks

One-component resin, no on-site mixing ratios, injected straight from the pail

Solvent-free and low odour for enclosed spaces such as basements and tunnels

Injection Type: ACTFLEX PU 200

ACTFLEX PU 200$4,040.00ACTFLEX PU 300$4,040.00ACTFLEX PU 500$4,040.00Sold out

Quantity: 1

7-Day Money BackGuarantee

Fast DispatchNext Business Day

Expert Advice(02) 8021 3517

Secure CheckoutSSL Encrypted

Get it — —

Pickup available at The Waterproofing Shop

Usually ready in 24 hours

Starter Kit - Crack Injection System Advanced

ACTFLEX PU 200

The Waterproofing Shop

Pickup available, usually ready in 24 hours

22/872 Canterbury Road
Roselands NSW 2196
Australia

+61280213517

How to Use

Inject with single-component, high-pressure polyurethane injection equipment through 10 mm mechanical packers set at maximum 200 mm intervalsProbe and assess any void of unknown volume before injecting, and confirm the resin quantity by trial injection on the first section
Drill 10 mm holes at maximum 200 mm intervals along the crack, offset from the crack line and angled at 45 degrees
Drill deep enough to intersect the crack at a depth of 60-100 mm, alternating sides of the crack where access allows
Blow or vacuum all dust from the drilled holes
Insert 10 mm mechanical packers with non-return valves, leaving approximately 20 mm of the packer proud of the surface
Tighten each packer firmly with the T-handle wrench to seal against injection pressure
Flush the pump and lines with urethane thinner before charging with resin; never use equipment or lines containing residual water
Where the crack is dry or water content is low, inject clean water through the packers to activate the reaction
Charge the pump, filling approximately two-thirds of the reservoir before sealing the lid
Begin injection at low pressure and increase gradually
Vertical cracks: inject from the bottom packer upward. Horizontal cracks: inject from the ends toward the centre
Continue at each packer until resin extrudes from the crack approximately 100 mm either side of the packer, then move to the next packer
Do not over-inject
Leave the non-return packers in place to hold the resin under pressure while it cures
Trim and dress the cured foam once it is firm and no longer expanding
Allow 24 hours at 25C and 50% RH for full reaction and a stable seal
Remove the packers and patch the drill holes flush with a FORSPEC repair mortar, FORBUILD 100 or FORCRETE 100 per its TDS
Flush the pump and lines with urethane thinner immediately after use
Record batch numbers, injection dates, packer locations and spacing, injection pressures and resin consumption per packer in the project quality records

Technical Specifications

Kit Resin: ACTFLEX PU200 one-component hydrophobic polyurethane injection resin
Resin Composition: One-component hydrophobic polyurethane resin
Resin Colour and Form: Light brown, low-viscosity liquid
Resin Density at 25C: 1.12-1.20 g/cm3*
Resin Viscosity at 25C: 500-600 mPa.s*
Foaming Magnification: 8-20 times, water-contact dependent; free-foam above 13 times*
Foaming Time at 25C, 50% RH: Approx. 180-360 seconds, free foam*
Reaction at 10:1 Water to Resin, 25C: 300-350 seconds, 16-20 times magnification*
Bond Strength to Concrete: Greater than 2.28 MPa*
Elongation, Thick Sections: Greater than 100%*
Elongation, Thin Sections: Greater than 250%*
Full Reaction and Stable Seal: 24 hours at 25C, 50% RH*
Application Temperature: Greater than 10C, substrate and material
Drilling and Packer Spacing: 10 mm holes at maximum 200 mm intervals, angled 45 degrees to intersect the crack at 60-100 mm depth
Packers Required: 10 mm mechanical injection packers with non-return valves
Injection Equipment Required: Single-component injection pump rated for polyurethane resins, 10 mm drill bit, 10 mm T-handle wrench, urethane thinner and pump cleaning oil
Resin Packaging: 20 kg pail
Resin Shelf Life: 12 months, unopened, 5-30C, protected from moisture
Hazard Classification: Hazardous Chemical, Non-Dangerous Goods under the WHS Regulations and the ADG Code (SDS)
* Typical Forspec R&D characteristic values, not subject to third-party certification

Product Files

Starter Kit - Crack Injection System AdvancedACTFLEX PU 200

$4,040.00

Frequently bought together

This item

Starter Kit - Crack Injection System Advanced $4,040.00
Add

125mm Arrow Cup Grinding Disc $100.00
Add

ACTFLEX 101 UV Stable Trafficable Membrane $250.00

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

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

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

Technical overview

This kit is built around ACTFLEX PU200, a one-component, solvent-free, hydrophobic polyurethane injection resin for sealing active water leaks and cracks in concrete structures. On contact with water the resin reacts to form a rapidly expanding, closed-cell polyurethane foam that fills the crack or void and blocks water ingress. The low-viscosity resin penetrates fine cracks and porous zones, cures without shrinkage, and stays dimensionally stable in permanently damp, below-grade environments. It is a water-stopping resin, not a structural repair. No Australian Standard specifically governs polyurethane injection resins for water-stopping, so every performance value published here is a Forspec R&D characteristic value determined on standard production material and is not subject to third-party certification.

Key applications

Concrete crack injection - sealing active leaks in structural and non-structural concrete elements
Basements and underground structures - stopping water ingress through foundations, retaining walls and slabs
Tunnels and below-grade infrastructure - leak sealing in tunnels, subways and underground services
Dams and reservoirs - sealing leaks in water-retaining structures subject to hydrostatic pressure
Wastewater treatment structures - sealing leaks in tanks and channels
Bridges and parking decks - sealing cracks and joints exposed to moisture
Manholes, pits and utility vaults - preventing water infiltration in below-grade utility infrastructure

Surface suitability

Concrete cracks in structural and non-structural elements
Concrete foundations, retaining walls and slabs in basements and underground structures
Concrete with sufficient water present; dry cracks pre-wetted through the packers before injection
Substrate and material temperature greater than 10C
Buried and internal concealed concrete only, not exposed finishes

Water-stopping product only, not a structural repair - use the FORSPEC structural injection range for load-transferring crack repair. Requires water to react - dry cracks must be pre-wetted through the packers before injection. Do not apply below 10C substrate or material temperature; cold conditions slow the reaction and reduce expansion. Not certified for contact with drinking water (AS/NZS 4020) - do not use in potable water structures unless confirmed in writing by Forspec. Not UV stable - for buried and internal concealed applications, not for exposed finishes. Live movement joints require a purpose-designed movement joint system; injected foam alone must not be relied on across joints subject to ongoing movement. Injection into voids of unknown volume can consume large resin quantities - probe and assess before injecting. Moisture-sensitive - the resin reacts with atmospheric humidity; keep containers sealed until use and use opened containers promptly. Classified as hazardous - handle with chemical-resistant gloves, safety eyewear, protective clothing and, in areas with limited ventilation, suitable respiratory protection, and observe confined space entry requirements in below-grade spaces.

Technical Specifications

Kit Resin	ACTFLEX PU200 one-component hydrophobic polyurethane injection resin
Resin Composition	One-component hydrophobic polyurethane resin
Resin Colour and Form	Light brown, low-viscosity liquid
Resin Density at 25C	1.12-1.20 g/cm3*
Resin Viscosity at 25C	500-600 mPa.s*
Foaming Magnification	8-20 times, water-contact dependent; free-foam above 13 times*
Foaming Time at 25C, 50% RH	Approx. 180-360 seconds, free foam*
Reaction at 10	1 Water to Resin, 25C: 300-350 seconds, 16-20 times magnification*
Bond Strength to Concrete	Greater than 2.28 MPa*
Elongation, Thick Sections	Greater than 100%*
Elongation, Thin Sections	Greater than 250%*
Full Reaction and Stable Seal	24 hours at 25C, 50% RH*
Application Temperature	Greater than 10C, substrate and material
Drilling and Packer Spacing	10 mm holes at maximum 200 mm intervals, angled 45 degrees to intersect the crack at 60-100 mm depth
Packers Required	10 mm mechanical injection packers with non-return valves
Injection Equipment Required	Single-component injection pump rated for polyurethane resins, 10 mm drill bit, 10 mm T-handle wrench, urethane thinner and pump cleaning oil
Resin Packaging	20 kg pail
Resin Shelf Life	12 months, unopened, 5-30C, protected from moisture
Hazard Classification	Hazardous Chemical, Non-Dangerous Goods under the WHS Regulations and the ADG Code (SDS)
* Typical Forspec R&D characteristic values, not subject to third-party certification

Real Projects. Real Results.

View All Projects

Before After
Pool Renovation
Gold Coast, QLD
Before After
Below Ground Retaining Wall
Sydney, NSW
Before After
Concrete Water Tank
Perth, WA
Before After
Commercial Podium
Melbourne, VIC
Before After
Swimming Pool Construction
Brisbane, QLD

Watch the install

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

The Waterproofing Shop?

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

100% Australian
Owned & Operated

30+ Years in the
Waterproofing Industry

Thousands of Products
in Stock

Fast Shipping
Australia Wide

Expert Technical
Support

Frequently asked questions

View all FAQs

What's in the PU200 Advanced Crack Injection Kit?

Compatibility
The Advanced PU200 Kit is built around the ACTFLEX PU200 hydrophobic polyurethane injection resin - includes the SWM 1500 pump, hose, handle, 10mm and 13mm packer selection, gun couplers, and a starter quantity of PU200.
What is PU200 specifically used for?

Performance
PU200 is a hydrophobic polyurethane that reacts with moisture to form a closed-cell foam, sealing active leaks and blocking water ingress permanently. Ideal for live water infiltration through cracks, joints, and pipe penetrations.
How does hydrophobic foam injection work?

Installation
Inject PU200 into a wet crack - the resin reacts with the water to expand into a foam that seals the crack from the inside. The expansion creates pressure that forces resin into every void, achieving complete penetration.
Can the Advanced kit handle other resins too?

Compatibility
Yes. The pump, hose, packers, and couplers are universal - you can also run PU300, PU500, Injectswell, ER300, Crack Pro 1200, and other Forspec resins through the same equipment. Flush thoroughly between resin types.
Where is PU200 typically specified?

Compliance
PU200 is specified for below-ground waterproofing remediation (basements, lift shafts, retaining walls), active leak repair, and any wet crack injection. Compliant with relevant Australian Standards for concrete waterproofing repair.

Starter Kit - Crack Injection System Advanced

Frequently bought together

Pool System Build-Up

Retaining Wall System Build-Up

Tank System Build-Up

Technical overview

Key applications

Surface suitability

Technical Specifications

Pool Renovation

Below Ground Retaining Wall

Concrete Water Tank

Commercial Podium

Swimming Pool Construction

The Waterproofing Shop?

Frequently asked questions

You may also need