Epoxy grout is a high-performance, durable grouting material used primarily in tile installations where maximum strength, stain resistance, and chemical resistance are required. Unlike traditional cement-based grout, epoxy grout is made from epoxy resins, hardeners, and fillers, making it non-porous and extremely tough.
🔧 Key Properties of Epoxy Grout
Feature Details
Composition Epoxy resin, hardener, and filler powder
Water Absorption Very low (non-porous)
Chemical Resistance High (resists acids, alkalis, and solvents)
Stain Resistance Excellent; ideal for kitchens, bathrooms, and industrial areas
Bond Strength Very strong; adheres tightly to tile edges
Color Retention Superior; does not fade or discolor easily
Flexibility Good flexibility; resists cracking under movement
Curing Time Typically longer than cement grout; full cure in 24–72 hours depending on brand and temperature
🧱 Where Epoxy Grout Is Commonly Used
Commercial kitchens (due to stain and chemical resistance)
Bathrooms and showers
Swimming pools
Hospitals and laboratories
High-traffic areas (airports, malls)
Industrial floors (exposed to chemicals or heavy machinery)
✅ Advantages of Epoxy Grout
Waterproof: Ideal for wet environments
Highly durable: Resists cracking and crumbling
Low maintenance: Easy to clean, doesn’t support mold/mildew
Long-lasting color: Doesn't absorb dirt or discolor easily
Strong adhesion: Can improve the structural integrity of tile installations
⚠️ Disadvantages
More expensive than cementitious grout
Harder to apply: Sticky, requires experience or skilled labor
Short working time: Must be used quickly once mixed
Difficult cleanup: Requires thorough cleaning of tile surfaces before it cures
🛠️ Tips for Applying Epoxy Grout
Use rubber float to apply and force grout into joints.
Clean excess immediately with a sponge and special epoxy grout cleaner (not just water).
Work in small sections due to fast curing time.
Use gloves and protective gear – epoxy resins can irritate skin.
Have a second person for cleanup if possible.
🔍 Popular Brands of Epoxy Grout
LATICRETE SpectraLOCK
Mapei Kerapoxy
Ardex WA
Custom Building Products – CEG-Lite