What's in the PU200 Standard Crack Injection Kit?

The Standard PU200 Kit is the entry-level kit for hydrophobic polyurethane crack injection - includes the SWM 1300 pump, hose, handle, 10mm packer selection, gun coupler, and a starter quantity of ACTFLEX PU200 resin.

When should I use this vs the Advanced kit?

Standard is sized for residential and light commercial wet crack repair - basement leaks, planter box cracks, light retaining walls. Step up to Advanced for structural cracks, deeper concrete, or higher-pressure water situations.

What's the first-time learning experience like?

Crack injection has a moderate learning curve - mostly around correct packer placement, drilling angles, and recognising 'refusal' (when the crack is fully filled). Read the supplied instructions and watch the Forspec tutorial videos before your first job.

Does it work with epoxy resins too?

The Standard pump is rated for polyurethane resins. For epoxy injection (ER300, Crack Pro 1200), the SWM 1500 (Advanced kit) is recommended due to higher viscosity. Single-component PU products run perfectly through the SWM 1300.

Is PU200 safe for indoor work?

PU200 has lower VOC than older PU injection products but still requires good ventilation during application. Use appropriate PPE per the supplied SDS. The cured foam is inert and safe.

Promotional graphic for the Crack Injection Starter Kit featuring the INJEXA SWM 1300 crack injection pump, polyurethane injection resin, crack packers, grease gun coupler, isopropyl alcohol, drill bit, included accessories, and trade deal pricing.

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Starter Kit - Crack Injection System Standard

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Complete crack injection kit with pump, resin and cartridges for concrete repair.

The INJECTION PU200 Standard Kit includes a single-component polyurethane resin and everything needed for crack injection into concrete. The kit comes with a manual pump, hose, nozzles and two 500ml cartridges of PU200 resin.

What's in the kit

Manual pump for pressure-injection
Low-pressure hose and quick-connect nozzles
Two 500ml pre-loaded cartridges of PU200 single-pack resin
Installation instructions and disposal guide

Where to use it

Sealing concrete cracks before waterproofing application
Repairing hairline and structural cracks in concrete
Injection below concrete slabs and foundations

Why buy the kit

Complete system ready to use. No separate tool purchases
Single-component PU. Mix nothing, pump and go
Fast cure. Resin sets in minutes, full strength in hours
Pre-loaded cartridges. No measuring or waste
Manual pump allows controlled low-pressure injection

Not for

High-pressure industrial applications, wet cracks with active water flow, or applications requiring very fast cure.

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$2,693.00Sold outACTFLEX PU 300$2,693.00Sold outACTFLEX PU 500$2,693.00Sold out

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Starter Kit - Crack Injection System Standard

ACTFLEX PU 200

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Roselands NSW 2196
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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
Set the machine pressure for PU200 between 80 and 150 BAR and never exceed 300 BAR
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
Kit Machine: INJEXA SWM-1300 crack injection machine, operated only by remote drill trigger
Machine Voltage: AC 220V / 60Hz, single phase
Machine Motor Rating: 700W
Machine Tank Capacity: Maximum 2.5 L of resin
Machine Flow Rate: Fixed at 0.6 L/min
Machine High-Pressure Hose: 5 m, quick-connect only
Injection Pressure for PU200: 80-150 BAR, never above 300 BAR
Typical Injection Duration: 2-6 minutes per port
Machine Material Compatibility: ACTFLEX PU300, PU200, PU500 and INJECTSWELL only, plus epoxy resins and fine-particle cementitious grouts
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

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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

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. Never leave moisture-sensitive resins such as PU200 inside the machine, never clean the machine with water, and never run it dry for more than 15 seconds.

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
Kit Machine	INJEXA SWM-1300 crack injection machine, operated only by remote drill trigger
Machine Voltage	AC 220V / 60Hz, single phase
Machine Motor Rating	700W
Machine Tank Capacity	Maximum 2.5 L of resin
Machine Flow Rate	Fixed at 0.6 L/min
Machine High-Pressure Hose	5 m, quick-connect only
Injection Pressure for PU200	80-150 BAR, never above 300 BAR
Typical Injection Duration	2-6 minutes per port
Machine Material Compatibility	ACTFLEX PU300, PU200, PU500 and INJECTSWELL only, plus epoxy resins and fine-particle cementitious grouts
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.

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Frequently asked questions

View all FAQs

What's in the PU200 Standard Crack Injection Kit?

Compatibility
The Standard PU200 Kit is the entry-level kit for hydrophobic polyurethane crack injection - includes the SWM 1300 pump, hose, handle, 10mm packer selection, gun coupler, and a starter quantity of ACTFLEX PU200 resin.
When should I use this vs the Advanced kit?

Performance
Standard is sized for residential and light commercial wet crack repair - basement leaks, planter box cracks, light retaining walls. Step up to Advanced for structural cracks, deeper concrete, or higher-pressure water situations.
What's the first-time learning experience like?

Installation
Crack injection has a moderate learning curve - mostly around correct packer placement, drilling angles, and recognising 'refusal' (when the crack is fully filled). Read the supplied instructions and watch the Forspec tutorial videos before your first job.
Does it work with epoxy resins too?

Compatibility
The Standard pump is rated for polyurethane resins. For epoxy injection (ER300, Crack Pro 1200), the SWM 1500 (Advanced kit) is recommended due to higher viscosity. Single-component PU products run perfectly through the SWM 1300.
Is PU200 safe for indoor work?

Compliance
PU200 has lower VOC than older PU injection products but still requires good ventilation during application. Use appropriate PPE per the supplied SDS. The cured foam is inert and safe.

Starter Kit - Crack Injection System Standard

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

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