Epirez Ultra High Build Epoxy Coating (733) 16L
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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 733 ultra high build epoxy coating provides a thick-film protective finish for concrete and steel in environments requiring maximum chemical and abrasion resistance.
Where this product is used
Epirez high build epoxy coating products are used across construction, industrial maintenance, mining, and processing plant projects.
- Concrete and steel surfaces requiring a thick-film protective coating against chemical and abrasion attack.
- Tank lining, bund coating, and secondary containment in chemical processing facilities.
- Surfaces requiring maximum film build in a single coat application.
Key specifications
| Specification | Detail |
|---|---|
| Mix ratio | 1 part hardener : 3 parts compound (by weight or volume) |
| Pot life (25°C) | 30 minutes |
| Tack-free time | 6 hours @ 25°C |
| Initial hardening | 24 hours @ 25°C |
| Compressive strength | 95 MPa |
| Tensile strength | 62 MPa |
| Tensile bond to concrete | Exceeds concrete’s own strength — substrate fails first |
| Coverage rate | 5.3m² per 16L pack @ 3mm DFT, single coat |
| Solids content | 100% (solvent-free, zero VOC) |
| Application temperature | Not below 5°C; store and apply 10–30°C |
| Other | Cures underwater; suitable for salt/fresh water immersion; approved for potable water contact to AS/NZS 4020-2002 |
| Shelf life | 2 years in sealed containers |
| Pack size available | 16L |
Selecting the right option
733 Ultra High Build applies in a single thick coat — use where minimum coats are required. Prime concrete substrates with Epirez epoxy primer sealer to prevent outgassing. Apply by roller or squeegee at the specified spread rate for consistent film thickness.
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