Epirez Non-Sag Epoxy Mortar Binder (633) 1L
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 633 is a non-sag epoxy mortar binder — it bonds aggregate to form a chemical-resistant epoxy mortar that stays in place on vertical and overhead surfaces without slumping, unlike the standard general-purpose binder.
Where this product is used
Used across construction, industrial maintenance, mining, and processing plant projects wherever mortar needs to be applied to a vertical or overhead surface.
- Repairing vertical walls, columns, and overhead soffits where a sagging mortar would fail to hold.
- Chemical-resistant repair on vertical surfaces in corrosive or high-traffic environments.
- Bonding aggregate into a non-sag mortar for overhead and wall-face resurfacing.
Key specifications
| Specification | Detail |
|---|---|
| Form | Non-sag paste — formulated for vertical and overhead application |
| Mix ratio | 1 part hardener : 3 parts compound (by volume) |
| Pot life (25°C) | 30 minutes |
| Hardening time (25°C) | 24 hours (touch-dry in approx. 6 hours) |
| Full cure / chemical resistance | 7 days @ 25°C |
| Compressive strength | 95 MPa (neat, 7-day cure) |
| Tensile strength | 62 MPa (neat, 7-day cure) |
| Bond strength (new to old concrete) | 105% of substrate strength |
| Coverage rate | 1L covers 1m² @ 1mm DFT neat; 1L binder + 2L QA2 aggregate covers approx. 1m² @ 2mm |
| Application temperature | 10–30°C |
| VOC / solids content | 0 g/L (solventless) — 100% solids |
| Shelf life | 2 years in sealed containers, stored 10–30°C |
| Pack sizes available | 1L, 4L, 20L |
Selecting the right option
133 is the standard general purpose binder for horizontal work; 633 (this product) is non-sag for vertical and overhead applications; 133AR is acid resistant. Select based on the application geometry and chemical exposure requirements. Mix with Epirez QA2 aggregate at the specified ratio to produce a mortar of the required consistency.
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Model Number: E906334
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Model Number: E906332
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Model Number: E906333
