ACTFLEX EPOXY GROUT Structural epoxy grout
High-strength, flowable structural epoxy grout, primer, binder and heavy-duty coating
Pour up to 100 mm in one lift. Structural epoxy grout for voids, baseplates and repairs.
ACTFLEX EPOXY GROUT coverage, coats and cure times
Two-component solvent-free structural epoxy grout for concrete repair, void filling and load-transfer grouting. It is also the primer for ACTFLEX HBR and a resin binder for approved repair mortars.
- Pour depth
- 100 mmmaximum single pour, deeper in staged pours · TDS p2
- Pack
- 30 kg kitPart A 20 kg + Part B 10 kg · TDS p2
- Mix ratio
- 2 : 1by volume and by packaged weight · TDS p2
- Void yield
- ≈ 28.5 Lof void filled per 30 kg kit · TDS p3
- Patch
- ≈ 9.5 m²per kit, neat at 3 mm · TDS p3
- Primer
- 95–143 m²per kit at 0.2–0.3 L/m², theoretical · TDS p3
- Pot life
- ≈ 40 mintypicalat 25°C, less with heat and mixed mass · TDS p2
- Full cure
- 7 daystypicalbefore structural load, immersion or chemicals · TDS p4
- Compressive
- 80 MPatypicalat 7 days, ASTM C579 basis · TDS p2
From the FORSPEC data sheet, TDS-AACT145 · Revision 2 · 12 August 2026. Times are at 25°C and 50% relative humidity unless the data sheet says otherwise. Typical = FORSPEC’s own typical value, not a laboratory-certified one.
Where ACTFLEX EPOXY GROUT is used
Use it for
- Formed filling of large static voids and deep defects, lifts to 100 mm
- Structural and heavy-duty patch repairs to prepared concrete
- Grouting beneath baseplates, machine bases and plinths
- PREFLEX tanking: pile caps, formed repairs and substrate transitions
- Primer and bonding coat for ACTFLEX HBR and ACTFLEX CRYSTAL BOND
- Resin binder for approved epoxy mortar and heavy-duty floor systems
Know before you start
- Not for movement joints, active cracks or flexible substrates
- Not a hairline crack-injection resin: gravity or low-pressure fill only
- Concrete must be 28 days old, 25 MPa minimum and 4% moisture or less
- No standing water, rising moisture, hydrostatic pressure or active leaks
Its FORSPEC systems
How to apply ACTFLEX EPOXY GROUT
- 01
Prepare
Concrete 28 days old, 25 MPa minimum, moisture 4% or less. Diamond grind, shot blast or scarify to a clean open profile and vacuum. Blast steel to Sa 2½ where specified.
- 02
Form up
Use rigid, braced, sealed formwork with a pour point, vents at high points and a headbox. Apply a compatible release agent without touching bond surfaces.
- 03
Mix
Condition both parts to 18–29°C. Add all of Part B to Part A. Mix 2 to 3 minutes at 300–400 rpm, double-pot and remix 1 minute. Full kits only.
- 04
Pour
Pour continuously from one side with no cold joints, up to 100 mm per pour. Deeper placements follow an approved staged-pour plan. Finish within about 40 minutes.
- 05
Prime
As a primer or bond coat, apply 0.2–0.3 L/m² by brush, roller or squeegee. Place the next layer while it is tacky, typically 30 to 60 minutes at 25°C.
- 06
Cure
Initial cure 10 to 12 hours. Protect from vibration, traffic and water for 24 hours. No structural load or immersion before full cure at 7 days.
A short guide from the data sheet. Read the full ACTFLEX EPOXY GROUT TDS before you start.
Drawings for the systems it goes in
FORSPEC standard details as PDF and DXF. Each sheet is a generic detail: the specification names the products.
ACTFLEX EPOXY GROUT questions
How deep can I pour ACTFLEX EPOXY GROUT?
Up to 100 mm in a single pour. Deeper placements need an approved staged-pour or aggregate-extension plan, because large mixed masses generate hazardous exothermic heat.
How much do I need?
A 30 kg kit fills about 28.5 L of void, covers about 9.5 m² neat at 3 mm, or about 95 to 143 m² as a primer at 0.2 to 0.3 L/m², all in theory before losses.
Can I use it as a primer?
Yes, for ACTFLEX HBR, ACTFLEX CRYSTAL BOND and compatible repair mortars. Place the next layer while the primer is wet or tacky, typically 30 to 60 minutes. If it has cured, abrade and clean first.
Can it inject hairline cracks?
No. It is not a dedicated hairline crack-injection resin. Use it only for gravity or low-pressure filling of accessible static cracks and voids.
When can I load it?
Protect it from vibration, traffic, water and contamination for 24 hours. No structural loading, immersion or chemical exposure before full cure at 7 days at 25°C.
Used with ACTFLEX EPOXY GROUT
ACTFLEX EPOXY GROUT TDS and SDS
Always work from the current data sheet. Every FORSPEC TDS and SDS →
Specify it. Or buy it.
Send the drawings or photos and FORSPEC comes back with the system, the details and the quantities. Or find a FORSPEC stockist for ACTFLEX EPOXY GROUT.