Epirez Epoxy Primer/Sealer (123) 6L
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 Epoxy Primer/Sealer (123) is the same 123 epoxy resin system as our Crack Repair Epoxy Sealer, supplied in bulk 6L and 25L packs for priming and sealing concrete and steel over larger areas — rather than the small retail packs used for individual crack injection.
Where this product is used
Used across construction, industrial maintenance, mining, and processing plant projects wherever a concrete or steel surface needs priming or sealing before a topcoat, or a floor area needs dust-proofing and sealing.
- Priming concrete floors before applying an Epirez epoxy floor coating or flooring system.
- Sealing porous concrete against moisture, dusting, and oil staining.
- Priming steel and other substrates ahead of a protective topcoat.
Key specifications
| Specification | Detail |
|---|---|
| Mix ratio | 1 part hardener : 2 parts compound (by weight or volume) |
| Mixed viscosity | 0.3 Pa.s @ 25°C |
| Pot life (25°C) | 30 minutes |
| Tack-free time | Approx. 6 hours @ 25°C |
| Full cure time | 24 hours @ 25°C |
| Coverage rate | Concrete: 4–8m²/litre; steel: 10m²/litre |
| Bond strength (to concrete) | 2.7 MPa (concrete substrate failure) |
| Water permeability | 4×10⁻¹⁵ m/s |
| Chloride ion resistance | Good |
| Solids content | 100% — solventless, 0% VOC |
| Colour | Amber liquid |
| Storage temperature | 10–30°C |
| Recommended application temperature | 18–25°C |
| Shelf life | 2 years in sealed containers |
| Pack sizes available | 6L, 25L |
Selecting the right option
For sealing individual cracks rather than priming a whole area, see the smaller 300ml or 1.5L Crack Repair Epoxy Sealer packs — same resin, sized for crack injection rather than bulk coverage. On steel substrates requiring corrosion protection rather than a sealer, see our Epoxy Mastic Metal Primer (215). Apply at 18–25°C for best results and allow full cure before overcoating.
Couldn't load pickup availability
Secure Checkout. We do not store credit card details
-
6
Model Number: E901232
-
25
Model Number: E901231
