Epoxy grouting resin is a high-performance, chemical-resistant material used for anchoring, bonding, and grouting in construction and industrial applications. It's made from a two-part system: epoxy resin and a hardener (curing agent), which when mixed, react to form a rigid, durable compound.
🔧 Key Characteristics of Epoxy Grouting Resin
Property Description
Composition Two-part system: epoxy resin + hardener (amine-based)
Color Typically grey, off-white, or clear; can be pigmented
Consistency Flowable or paste, depending on formulation
Curing Time Varies from 4–24 hours depending on temperature and product type
Compressive Strength Often > 80 MPa (11,600 psi)
Bond Strength Excellent adhesion to concrete, steel, and other materials
Chemical Resistance High – resists acids, alkalis, solvents, and oils
Shrinkage Negligible – very low or zero shrinkage on curing
Durability Excellent – moisture- and impact-resistant
Temperature Resistance Typically up to 60–90°C (140–195°F); higher grades available
🏗️ Common Applications
Precision Grouting of machinery bases, pumps, compressors, and generators
Anchoring bolts, dowels, and reinforcing bars
Repairing cracks and voids in concrete
Structural Bonding in precast elements
Underwater Grouting (using specialized marine epoxy formulations)
🧪 Advantages
High mechanical strength and load-bearing capacity
Superior bonding to a wide range of substrates
Excellent durability in harsh environments
Rapid curing (fast-track construction)
Suitable for dynamic and static loads
⚠️ Limitations / Considerations
Surface prep is critical for adhesion – must be clean and dry
Temperature-sensitive during curing
Costlier than cement-based grouts
May require ventilation and PPE – emits fumes during mixing
Pot life can be short, especially in warm temperatures
🛠️ Popular Brands / Products
Sika – Sikadur® series
BASF Master Builders – MasterFlow® 648, 410
Fosroc – Nitogrout® EP, Lokfix®
Mapei – Epojet®, Adesilex PG series
LATICRETE – LATAPOXY® series