An epoxy base coat floor resin is a foundational layer in an epoxy flooring system, typically applied directly to a prepared concrete substrate. It's designed to enhance adhesion, seal the surface, and provide a solid base for additional coats (e.g., color coats, topcoats, or decorative flakes). Here's a detailed breakdown:
What Is Epoxy Base Coat?
An epoxy base coat is a two-component resin system (resin + hardener) that chemically reacts to form a rigid plastic material. It bonds strongly to concrete and creates a smooth, durable surface for subsequent coatings.
Key Properties
Property Description
Composition Typically 100% solids or solvent-based epoxy resin and a curing agent
Viscosity Medium to low viscosity for good substrate penetration
Pot Life 20–45 minutes depending on temperature and formulation
Cure Time Initial set: 6–8 hrs, Full cure: 24–72 hrs
Bond Strength Very high adhesion to concrete (~>300 psi pull-off strength)
Chemical Resistance Resistant to oils, fuels, acids, and alkalis after curing
Moisture Tolerance Some versions are moisture-tolerant (important for damp concrete)
Coverage Rate ~160–250 sq ft/gallon depending on substrate texture and porosity
Applications
Warehouses and factories
Garages and showrooms
Commercial kitchens and food processing areas
Hospitals and labs
Decorative floors (with flakes or quartz broadcast into base coat)
Steps for Application
Surface Preparation: Concrete must be clean, dry, and properly profiled (via shot blasting or diamond grinding).
Mixing: Combine Part A (resin) and Part B (hardener) as per manufacturer ratio.
Application: Use a roller or squeegee to apply evenly. Back-roll to level the coat.
Optional Broadcast: While wet, decorative flakes or sand can be broadcast.
Curing: Allow to cure before applying further coats (e.g., topcoat or clear sealer).
Advantages
Excellent adhesion to concrete
Seals porous concrete
Increases longevity of flooring system
Customizable (can accept pigments, flakes, anti-slip additives)
Enhances resistance to chemicals, abrasion, and moisture