Flood Test Balloon
$28.00
ACTFLEX 400 CLEAR Over-Tile Leak Repair Coating
$66.00
Innovative Tools 230mm FC Sheeting Puddle Flange Recess Kit
$504.00
Soudal T-Rex Crystal
$17.85
Puddle Pro 90mm Puddle Flange
$15.00
BAT Spike Roller 21mm x 500mm
$55.00
STAIN-PROOF Premium Impregnating Sealer by Dry-Treat
$79.95
ACTFLEX 400 CLEAR Temporary Leak Repair Kit For Leaking Bathrooms & Balconies
$94.35
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Let's get your project sorted - start with a system below.
A dual-feed machine for two-part structural epoxy. Part A and Part B go in their own tanks and are metered 2 : 1 and mixed at the nozzle, so nothing is premixed. Built for ACTFLEX ER300 to weld cracked slabs, beams and columns back into one section.
Drill, set the packers, seal the face, inject bottom up to refusal, cure, pull the packers and plug the holes with HYDROPLUG. Every step from the ACTFLEX ER300 data sheet.
From the ER300 TDS: demand per metre = crack width (mm) × depth (mm), in mL. A 15 kg set yields about 13.9 L, so 0.5 × 250 mm needs 125 mL/m, about 110 m a set, before any allowance. Real jobs take more: voids, branching, priming, mixer waste and flushing.
The machine is in. Your ER300 and packers from the calculator are already in. Change any quantity, tick what else you need, and add it all at once.
The SWM pumps stop water with polyurethane. The SWDM 2500 does the other job: welding a dry crack back together with two-part structural epoxy.
| INJEXA SWM 1300PU, small to medium | INJEXA SWM 1500PU, active leaks | INJEXA SWDM 2500Structural epoxy | |
|---|---|---|---|
| Job | Stop small leaks | Stop active leaks | Weld dry cracks, restore the section |
| Resin | PU200 / 300 / 500 | PU200 / 300 / 500 | ER300 two-part epoxy |
| Mixing | Single part | Single part | 2 : 1, at the nozzle |
| Pressure | 10–300 bar | 5–250 bar | 5–25 bar (ER300) |
| Running water | Yes | Yes | Never. Stop it first |
| Price | $2,200 | $3,740 | $4,000 |
| View 1300 | View 1500 |
ER300 cures with zero shrinkage, so it stays bonded to both crack faces and welds them into one section. Under load, the concrete fails before the repair does.
All times at 25 °C and 50% RH. Apply between 10 and 30 °C.
Packer spacing, drilling angle and the resin path, drawn to the FORSPEC standard. Hand it to the engineer with the ER300 data sheet and the repair is specified before you arrive.
Learn it on the rig before the job.
Inside one of our crack injection courses: which resin for which crack, where the packers go, pressure and refusal, and how to stop active water before epoxy goes in.
For this machineHands-on resin injection: when to inject, PU or epoxy, where the packers go, pressure, refusal and how to stop active water. You leave with a certificate of completion.
Best sellerA full bathroom, start to finish, on a real rig: moisture check, primer, bond breakers, membrane at the right thickness, flanges sealed. We show you, then you do it.
Stop any water first, seal wide cracks, and use the right resin for hairline cracks.
ACTFLEX HYDROPLUGStops running water first, then plugs the packer holes$220In stock
CRACKLOCK E400LUltra-low-viscosity epoxy for cracks finer than 0.1 mm$110In stock
ACTFLEX PU200For a crack that carries water, before or instead of epoxy$550In stock
INJEXA SWM 1500The PU pump for active leaks and whole basements$3,7403 in stock
No. Pour Part A and Part B into their own containers. The SWDM 2500 meters them at 2 : 1 by weight and mixes them at the nozzle through a static mixer.
No. Epoxy won't displace water and won't cure against it. Stop the water first with ACTFLEX HYDROPLUG, or inject the leak with ACTFLEX PU200 hydrophobic resin.
The ER300 data sheet works it out from the crack: demand per metre in mL = crack width (mm) × crack depth (mm). A 15 kg set yields about 13.9 L, so a 0.5 × 250 mm crack takes about 125 mL a metre, or about 110 m a set, before any allowance. Real jobs take more for voids, branching, priming, mixer waste and flushing. Use the calculator on this page and check it on the first section.
Fine to medium cracks from 0.1 to 1.0 mm. For hairline cracks under 0.1 mm, use CRACKLOCK E400L.
Start at 5 to 10 bar on hairline cracks and build slowly, up to a maximum of 25 bar on deeper or wider cracks. Too much pressure widens the crack and causes blowouts.
ER300 sets in the crack in 6 to 8 hours. After 18 hours you can load it and take the packers out. Full cure and full strength at 7 days. All at 25 °C and 50% RH.
Flush both the Part A and Part B lines and the mixer straight after use with epoxy thinner or a solvent the SDS allows. Hardened epoxy blocks the machine, hoses and nozzle for good.
ER300 cures with zero shrinkage and is stronger than the concrete around it (over 80 MPa compressive). The crack repair design and putting the load back on are the project engineer's call.
Call our team on (02) 8021 3517 with the crack widths and photos. We'll tell you the machine, resin and packers to use.
Crack 0.1–1.0 mm, dry or slightly damp, never running water. Grind off laitance, paint and grease, then blow the dust out with oil-free air.
Holes every 200–300 mm, alternating sides. Drill at 45–60° so each hole crosses the crack at mid-depth. Blow every hole clean.
Push each packer in and tighten the nut until the sleeve grips, without cracking the concrete. Tug test every one.
Seal wider cracks with PROBOND 1100 and let it cure. Clean static mixer, Part A and Part B in their own tanks, never premixed. Prime until it runs clear. Pot life about 35 minutes.
Lowest packer first at 5–10 bar, never past 25 bar. When resin shows at the next packer, cap and move up. Every port to refusal. Flush both lines and the mixer straight away.
Sets in the crack in 6–8 hours. After 18 hours, pull the packers and plug the holes with non-shrink HYDROPLUG. Grind off the PROBOND. Full strength at 7 days.
From the ACTFLEX ER300 TDS R1 (25 Aug 2026). Times at 25 °C, 50% RH.
ER300 values from ACTFLEX ER300 TDS R1, typical R&D values at 25 °C and 50% RH.
ER300 and PROBOND 1100 Safety Data Sheets: call (02) 8021 3517 and we'll send them.
What applicators say
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Send us your review · or call (02) 8021 3517Every injection course covers PU and epoxy side by side, on the rig, with the same packers and resin sold on this page.
FORSPEC Training Centre · See the course