Epoxy grouting resin is a high-performance material used for bonding, anchoring, and filling applications in construction, particularly where high strength, chemical resistance, and durability are required. It is typically a two-component system consisting of a resin and a hardener, which react when mixed to form a hard, chemically resistant solid.
🔹 Key Properties of Epoxy Grouting Resin
Property Description
High Compressive & Tensile Strength Provides excellent mechanical stability.
Chemical Resistance Resistant to oils, fuels, acids, alkalis, and water.
Adhesion Superior bonding to concrete, steel, tiles, and other materials.
Low Shrinkage Maintains volume during curing, minimizing cracks.
Waterproof Ideal for wet or submerged environments.
Non-Porous Prevents ingress of harmful substances.
🔹 Common Applications
Structural Grouting
Machinery baseplates and heavy equipment
Anchor bolts and dowels
Tile & Stone Grouting
Commercial kitchens, labs, and clean rooms
Areas exposed to aggressive chemicals or heavy cleaning
Crack Injection & Repair
Filling cracks in concrete to restore structural integrity
Industrial Flooring
As a filler or sealant in seamless floors
Marine & Underwater Uses
Bridges, docks, underwater pipelines
🔹 Typical Components
Epoxy Resin (Part A):
Clear or pigmented viscous liquid
Acts as the binder
Hardener (Part B):
Amine or polyamine-based
Reacts with resin to cure the mixture
Optional Fillers or Aggregates:
For improved strength or to reduce flowability
🔹 Advantages over Cementitious Grout
Epoxy Grout Cementitious Grout
Higher strength Lower strength
Chemical resistance Poor in aggressive environments
Non-shrink Can shrink and crack
Impermeable Porous
More expensive More economical
🔹 Limitations
Cost: Significantly more expensive than cement-based alternatives.
Temperature Sensitivity: May require controlled conditions during application.
Working Time: Pot life can be short; requires quick application.
Surface Prep: Requires clean and dry surfaces for optimal bonding.
VOC Concerns: Some systems may emit fumes; ventilation needed.
🔹 Examples of Commercial Products
Sika Epoxy Grout
Fosroc Lokfix E
Mapei Kerapoxy
BASF MasterFlow
Laticrete SpectraLOCK (for tiles)