Epoxy flooring is a two-component thermoset resin-based seamless floor coating system that hardens through a chemical reaction between epoxy resin (Bisphenol A / F + epichlorohydrin) and a polyamine / polyamide hardener. The cured floor is monolithic, hard, chemical-resistant, hygienic, glossy and dust-free — making it the gold standard for industrial floors, pharma plants, hospitals, food processing, warehouses, parking garages, showrooms and modern designer interiors.
Epoxy flooring systems are governed by BS EN 13813 (Screed Materials), ASTM C881 (Epoxy Resin), IS 9197 (Epoxy Resin Systems). Top brands in India include Sika, MYK Laticrete, BASF Master Builders, Pidilite Roff, Asian Paints Smartcare Epoxy, Fosroc, STP, Saint-Gobain Weber, Mapei.
What is Epoxy Flooring?
An epoxy floor is built layer-by-layer on a properly prepared concrete substrate:
Primer Coat: Low-viscosity epoxy penetrates concrete pores, bonds floor system to substrate
Body / Build Coat: Pigmented epoxy applied with roller / trowel (1–3 mm thick)
Optional Aggregate Broadcast: Quartz / mineral aggregate for slip resistance / texture
Top Coat / Sealer: Clear epoxy or polyurethane for UV / scratch protection
Cured epoxy is up to 10x more chemical-resistant than concrete, 4–6 times stronger in tensile, 100% waterproof, joint-less for hygiene, and lasts 10–20 years on industrial floors. Modern decorative metallic and 3D epoxy floors have transformed it from industrial-only to luxury residential.
Types of Epoxy Flooring Systems
System
Thickness
Description
Use
Epoxy Coating (Thin)
0.1 – 0.3 mm
Roller-applied 2–3 coats
Light traffic, garages, parking
Epoxy Floor Paint
0.05 – 0.15 mm
Brush / roller, basic protection
DIY garage, basement
Self-Levelling Epoxy
1 – 3 mm
Self-flow seamless finish
Showrooms, offices, hospitals
High-Build Epoxy
0.5 – 1 mm
Multi-coat build-up
Medium industrial
Epoxy Mortar (Trowel-Applied)
3 – 9 mm
Heavy duty with aggregate
Industrial, chemical plants
Anti-Static / ESD Epoxy
1.5 – 3 mm
Conductive fibres + grounding
Electronics, server rooms, hospitals
Anti-Skid / Textured Epoxy
1 – 3 mm
Quartz broadcast or anti-slip topcoat
Wet areas, ramps, kitchens
Decorative Flake (Chip) Epoxy
1 – 2 mm
Coloured plastic flakes broadcast
Garages, schools, gyms
Metallic Epoxy
1 – 2 mm
Mica metallic pigment swirled
Showrooms, designer floors, lobbies
3D Epoxy
1 – 3 mm
Printed graphic + clear epoxy
Premium home accent, retail
Epoxy Terrazzo
6 – 12 mm
Epoxy + marble / glass chips
Hotels, airports, malls
Anti-Microbial Epoxy
1 – 3 mm
Silver-ion / triclosan additives
Hospitals, food processing
Heat-Resistant Epoxy
3 – 9 mm
Withstands 90–120°C
Industrial ovens, foundries
PU (Polyurethane) Cement Floor
4 – 9 mm
Better thermal & chemical resistance
Food & beverage, dairy, brewery
MMA (Methyl Methacrylate)
3 – 6 mm
Fast-curing acrylic resin
Cold storage, freezers
Composition (Two-Component Epoxy)
Component
Function
Part A — Resin
Bisphenol A / F epoxy resin (DGEBA / DGEBF)
Part A — Pigments
Colour (TiO₂, iron oxide, organic)
Part A — Fillers
Silica, calcium carbonate, quartz powder (body)
Part A — Defoamer / Wetting Agent
Process aids
Part B — Hardener
Polyamine, polyamide, or modified amine
Part B — Accelerator
Curing time control
Mixing Ratio
Typical 2:1 / 3:1 / 4:1 by volume (Part A : Part B)
Pot Life
20 – 60 min @ 25°C
Solids Content
100% (solvent-free) or 70–80% (solvent-based)
Physical & Mechanical Properties
Property
Typical Value
Density (Cured)
1.5 – 1.8 g/cm³
Compressive Strength
70 – 100 MPa
Tensile Strength
20 – 35 MPa
Flexural Strength
40 – 60 MPa
Bond Strength to Concrete
> 2.0 MPa (concrete fails first)
Shore Hardness
D 75 – 85
Abrasion Resistance (Taber, CS17)
40 – 80 mg loss / 1000 cycles
Water Absorption
< 0.1%
Operating Temperature
−20 to +70 °C (epoxy); +120 °C (PU)
Linear Thermal Expansion
25 – 35 × 10⁻⁶ /°C
Slip Resistance (DCOF)
0.20 (gloss) — 0.65 (textured)
Chemical Resistance
Excellent (acids, alkalis, oils, solvents)
Fire Performance
Bfl-s1 (typical)
Surface Finish
Gloss / Satin / Matte options
Lifespan
10 – 20 years (industrial), 15 – 25 years (decorative)
Curing Time
16 – 24 hr touch dry, 7 days full chemical cure
Step-by-Step Application (Self-Levelling Epoxy)
Substrate Preparation: Concrete must be > 28 days cured, 25 MPa+ strength, moisture content < 4%
Surface preparation is 60% of the success of an epoxy floor. Poor prep = adhesion failure within months. Always specify ICRI CSP profile based on epoxy thickness.
Apply primer within 4 hr of preparation (prevents dust contamination)
Mix Part A + Part B in EXACT specified ratio (do not over-mix or under-mix)
Mix with low-RPM paddle drill (avoid air entrainment)
Use within pot life (20–60 min) — discard if started to set
Apply at ambient temperature 15–30°C, RH < 80%
Avoid application during temperature drop (osmotic blistering risk)
Use spiked roller for de-airing self-levelling epoxy
Maintain wet edge between batches (no lap marks)
Allow full chemical cure (7 days) before exposure to chemicals
Allow 24 hr foot traffic, 48 hr light traffic, 7 days heavy traffic
Use anti-slip variant in wet / sloped areas (kitchens, ramps)
Use UV-stable PU topcoat for outdoor / sun-exposed areas
Provide expansion / control joints in large floors
Use clean mixing buckets, equipment
Wear PPE during application (gloves, mask, goggles)
Ensure proper ventilation during cure
Plan installation in 1000–2000 sqft sections for control
Hire certified applicators for warranty
Inspect substrate moisture daily during application
Maintain proper concrete sub-grade (no rising damp)
Common Defects & Solutions
Defect
Cause
Remedy
Osmotic blistering (bubbles)
Concrete moisture > 4%, no vapour barrier
Test moisture, fix damp source, re-prime; use breathable PU cement
Adhesion failure / peeling
Poor surface prep, contamination
Re-grind, re-prime properly
Cracks reflecting through
Active sub-floor cracks
Fill cracks with structural epoxy, use crack-bridging system
Yellowing
UV exposure (basic epoxy)
Use UV-resistant PU topcoat
Surface roughness / orange peel
Application too cold, not de-aired
Apply at correct temp; spike-roll properly
Pin-holes
Substrate outgassing
Apply when concrete temp is dropping; use sealer primer first
Soft spots
Improper mix ratio, under-mixed
Mix to ratio precisely; mix thoroughly
Patchy gloss
Inconsistent thickness, dust
Apply topcoat for uniform finish
Slip when wet
Gloss finish in wet area
Apply anti-slip topcoat with quartz aggregate
Edge curling
Movement at expansion joints
Provide proper expansion joints; use flexible PU
Discolouration from chemicals
Wrong epoxy grade for chemical type
Use chemical-resistant grade (e.g., Sika Floor 263 SL)
Wax / oil stains pre-application
Insufficient cleaning
Solvent wipe before primer
Maintenance Schedule
Activity
Frequency
Sweeping / Dust Mop
Daily
Wet Mop with Neutral Cleaner
Weekly
Industrial Auto-Scrubber
Monthly (commercial)
Inspect for Damage
Quarterly
Apply Maintenance Topcoat
5 – 7 years (refresh gloss)
Full Re-coating
10 – 15 years
Anti-Static Floor Testing
Annual (verify ESD resistance)
Applicable Standards
Standard
Description
BS EN 13813
Screed Material and Floor Screeds — Specification (SR / IR types)
ASTM C881
Epoxy-Resin-Base Bonding Systems for Concrete
ASTM D7234
Pull-Off Adhesion of Coatings on Concrete
ASTM F710
Standard Practice for Preparing Concrete Floors to Receive Resilient Flooring
ASTM F2170
Determining Relative Humidity in Concrete Floor Slabs
ICRI CSP 1–9
Concrete Surface Profile Levels (International Concrete Repair Institute)
EN 1504-2
Concrete Surface Protection Systems
EN 13501-1
Fire Classification
IEC 61340-5-1
Anti-Static / ESD Flooring Standard
IS 9197
Epoxy Resin Systems (related)
EN 1542
Pull-Off Adhesion Test
DIN 51130
Slip Resistance
ISO 9377
Determination of Hydrocarbon Oil Index
Conclusion
Epoxy flooring is the most versatile resin flooring system — spanning everything from basic Rs 40/sqft DIY garage paint to Rs 2500/sqft luxury 3D designer floors. Its seamless monolithic construction, chemical resistance, hygiene, durability and design flexibility have made it the dominant choice for industrial, healthcare, hospitality and modern designer interiors.
Surface preparation is 60% of success — never skip diamond grinding / shot blasting and moisture testing. For other flooring options, see vitrified tiles, vinyl LVT, marble & granite, or traditional mosaic / IPS.