Epirez Instant Grout - Rapid Strength Cement Based Grout 15kg
Available
Epirez is an Australian epoxy systems brand supplying structural epoxy grouts, floor coatings, concrete repair compounds, crack sealers, chocking compounds, and acid-resistant coatings to construction, mining, processing, and industrial maintenance operations across Australia. Alongside its epoxy range, Epirez also supplies cement-based grouts and repair mortars for projects where a water-mix, no-hardener product is the better fit.
Epirez Instant Grout is a rapid-strength, non-metallic, non-shrink cement-based grout — add water only, no resin or hardener component. It is designed for fast strength gain where a quick return to service is needed.
Where this product is used
Used across construction, industrial maintenance, and processing plant projects for rapid-turnaround grouting.
- Anchor bolt and hold-down bolt reinstatement where equipment needs to return to service quickly.
- General machine-base and bearing-plate grouting with a fast strength-gain requirement.
- Repair work where a cement-based (rather than epoxy) rapid-set grout is the better fit.
Key specifications
| Specification | Detail |
|---|---|
| Base | Rapid-strength cement-based grout — water addition only |
| Water ratio | 1.8–2.1 L per 15kg pail (do not exceed 2.1 L) |
| Working time | 10 minutes — must be placed within this window |
| Initial set | 30 minutes @ 25°C |
| Compressive strength (AS2073) | 2 hours: 20.7 MPa; 4 hours: 30.2 MPa; 24 hours: 41 MPa |
| Shrinkage | Zero shrinkage (ASTM C-827) |
| Effective bearing area | Minimum 95% |
| Placement depth | Up to 75mm |
| Yield | 15kg pail = approx. 9L wet / 8L hardened grout |
| Application temperature | Not below 10°C |
| Shelf life | 12 months unopened, stored dry |
| Pack size | 15kg pail |
Selecting the right option
Instant Grout is a cement-based grout — mix with water only, within the stated ratio, and place within the 10-minute working time. For road and pavement patching specifically, see Highway Patch (also cement-based); for general concrete repair using an epoxy system, see Multi-Purpose Epoxy Concrete Repair (MULTI II). Prepare the substrate by saw-cutting, breaking out loose material, and cleaning before placing the repair.
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