Repair Systems
Epoxy anchoring adhesives
Structural 2-part epoxy anchor and injection resin — technical reference for reinforcement corrosion in Australian remedial building practice. Covers system selection, product comparisons, and brand equivalents.
What is epoxy anchoring adhesives?
Epoxy anchoring adhesives are two-component cartridge or pail products used to chemically fix reinforcing bars, dowels, rods, and anchor bolts into drilled holes in concrete or masonry. They are used wherever structural connections must be established into existing concrete without access to cast-in provisions — rebar laps, connection dowels, structural tie-backs, new column base plates, and post-installed anchors for new structural members. Products are selected based on anchor diameter, embedment depth, required load capacity, and environmental conditions, and ETA-assessed products are required for structural applications per AS 5216. Holes must be cleaned of all dust and debris — typically by compressed air blowing and brushing — to achieve full bond development between the adhesive, the anchor, and the concrete. Temperature management is important: bond strength is reduced below 10°C and pot life is shortened above 30°C.
Product Reference
Scroll right to see all brands. Use each card's TDS link for verified specifications before specifying on any project.
Sika AnchorFix-3+
high-strength 2-part epoxy anchor adhesive, 345 mL cartridge
System Description
Drill hole 1.5x bar dia. Clean: blow, brush, blow x3. Inject resin, insert bar with rotation. Min embedment per ETA.
Technical Properties
- High bond strength for rebar installation, dowels, and structural anchors in concrete
- Fast-cure formulations available for early loading requirements
Limitations
- Temperature sensitive — strength significantly reduced below 10°C
- Cannot be used in water-saturated holes without a specialist water-tolerant formulation
PROCUREMENT SOURCES
Ardex RA 142
2-part epoxy injection and anchoring adhesive, 380 mL cartridge
System Description
Drill hole 1.5x bar dia. Clean: blow, brush, blow x3. Inject resin, insert bar with rotation. Min embedment per ETA.
Technical Properties
- High bond strength for rebar installation, dowels, and structural anchors in concrete
- Fast-cure formulations available for early loading requirements
Limitations
- Temperature sensitive — strength significantly reduced below 10°C
- Cannot be used in water-saturated holes without a specialist water-tolerant formulation
PROCUREMENT SOURCES
System Description
Drill hole 1.5x bar dia. Clean: blow, brush, blow x3. Inject resin, insert bar with rotation. Min embedment per ETA.
Technical Properties
- High bond strength for rebar installation, dowels, and structural anchors in concrete
- Fast-cure formulations available for early loading requirements
Limitations
- Temperature sensitive — strength significantly reduced below 10°C
- Cannot be used in water-saturated holes without a specialist water-tolerant formulation
PROCUREMENT SOURCES
Brand Equivalents
Side-by-side view of equivalent products across all major brands.
| Material | Ardex | Sika | Fosroc | Tremco / Other | Parchem / Mapei |
|---|---|---|---|---|---|
| Epoxy adhesive (rebar anchoring) | Ardex RA 142 | Sika AnchorFix-3+ | Fosroc Nitobond EP | — | — |
Disclaimer
Information is general only. Product selection must be confirmed against project requirements, substrate condition, exposure class, manufacturer technical data sheets, NCC requirements, Australian Standards (including AS 3600), and consultant or structural engineer specifications. Do not rely on this reference as a substitute for professional engineering advice.
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