Epirez Crack Repair Epoxy Sealer (123) 1.5L
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.
Epirez 123 epoxy crack repair sealer penetrates and bonds hairline and structural cracks in concrete slabs, walls, and pavements, restoring integrity and preventing moisture ingress.
Where this product is used
Epirez epoxy crack sealer products are used across construction, industrial maintenance, mining, and processing plant projects.
- Sealing and bonding structural and hairline cracks in concrete slabs, columns, and walls.
- Crack injection and surface sealing before applying floor coatings.
- Preventing moisture ingress and carbonation through cracks in industrial concrete structures.
Key specifications
| Specification | Detail |
|---|---|
| Mix ratio | 1 part hardener : 2 parts compound (by weight or volume) |
| Pot life (25°C) | 30 minutes |
| Full cure time | 24 hours @ 25°C |
| Mixed viscosity | 0.3 Pa.s — thin, penetrating liquid |
| Coverage rate | 1L covers 4–8m² |
| Bond strength (to concrete) | 2.7 MPa (concrete substrate failure) |
| Water permeability | 4×10⁻¹⁵ m/s |
| Chloride ion resistance | Good |
| Solids content | 100% |
| Colour | Amber liquid |
| Application temperature | Minimum 10°C |
| Shelf life | Minimum 2 years in sealed containers, stored 10–30°C |
Selecting the right option
123 crack repair sealer is available in 300ml and 1.5L sizes — use the 300ml for localised repairs and the 1.5L for larger crack networks. For priming or sealing larger concrete or steel areas rather than injecting individual cracks, see our bulk Epoxy Primer/Sealer (123) in 6L and 25L packs — same resin system, sized for coverage rather than crack injection. Mix and inject or pour into the crack immediately — working time is limited after mixing. Allow full cure before traffic loading or coating over the repair.
Couldn't load pickup availability
Secure Checkout. We do not store credit card details
