Preparation pillar
How to prepare concrete for epoxy
Assess the slab, remove bond-breaking material, manage defects, profile the surface, and verify the result before coating.
Explore topicLegacy route · Rebuilt as a hub
Epoxy flooring is a system, not a can of coating
Performance begins with the slab and use conditions, then moves through preparation, moisture assessment, primer, build coat, finish, cure, and maintenance.
1. Assess the slab and repair defects
Start with substrate history, existing layers, contamination, moisture clues, cracks, joints, and weak concrete before selecting preparation equipment.
Defect classification
Repair cracks before epoxy
Separate dormant cracks from moving joints, spalls, settlement, and structural concerns before selecting a compatible repair.
Explore topicMoisture decision gate
Concrete moisture testing
Distinguish in-situ RH, MVER, and comparative electronic screening, then apply the selected system's acceptance limits.
Explore topicTest equipment
Concrete moisture-testing equipment
Choose an RH system, MVER kit, or comparative meter by accepted test method, workflow, calibration, records, and limitations.
Explore topic2. Remove, profile, and verify
Choose an accepted preparation method, remove incompatible layers, reproduce the required profile at edges, and verify the entire surface.
Method decision
Acid etching vs grinding
Compare removal limits, profile control, drying, chemical handling, silica controls, and the selected system's instructions.
Explore topicMechanical profiling
Grinding concrete for epoxy
Match removal tooling, profile tooling, passes, edge work, and silica controls to the required final surface.
Explore topicExisting surfaces
Epoxy over paint, sealer, or old epoxy
Identify the retained layer, qualify its bond and compatibility, then choose abrasion, a documented recoat, or complete removal.
Explore topicMachine selection
Concrete grinders for epoxy prep
Compare planetary, single-disc, and handheld machines by task, width, power, tooling, dust extraction, transport, and limitations.
Explore topicConsumable selection
Diamond tooling for floor prep
Select metal-bond diamonds, PCD removal tools, bonds, segments, and edge tools by material, concrete, profile, and grinder platform.
Explore topic3. Select the substrate interface
Choose an ordinary primer, moisture-tolerant primer, or mitigation system only after the slab and complete floor assembly define the required role.
System selection
Epoxy floor primer
Decide when primer is required, which documented role it serves, and why ordinary primers are not moisture-mitigation systems.
Explore topicPrimer comparison
Epoxy floor primers compared
Compare general, filled, rapid, moisture-tolerant, and system-specific primers by substrate, succeeding layer, film, cure, and limits.
Explore topicMoisture response
Moisture-mitigation systems
Move from accepted testing to a documented vapor-control assembly, with product-specific limits, exclusions, preparation, and finish compatibility.
Explore topic4. Choose the complete system and plan application
Compare assemblies by exposure and installation constraints, then calculate each layer and schedule every working, recoat, and service milestone.
Complete-system decision
Garage floor coating selector
Select primer, build coat, broadcast, grout, and topcoat as one documented assembly matched to the garage and installer.
Explore topicSystem comparison
Epoxy vs polyaspartic
Compare named epoxy and polyaspartic products by role, working time, cure, film build, UV claims, substrate limits, and safety.
Explore topicFormulation comparison
100% solids vs water- and solvent-based epoxy
Understand volume solids, film formation, application behavior, VOC terminology, and why formulation alone does not rank performance.
Explore topicFilm-build planning
Epoxy floor thickness and coverage
Distinguish WFT, DFT, solids by volume, theoretical coverage, practical consumption, system layers, and quantity planning.
Explore topicInteractive calculator
Epoxy floor coverage calculator
Calculate product quantity from your stated coverage, coat count, package size, and explicit contingency assumptions.
Explore topicApplication schedule
Epoxy cure and recoat time
Separate pot life, recoat windows, walk-on time, return to service, and full cure using the exact product schedule.
Explore topic5. Design decorative systems, finishes, and application control
Treat visual media, finish chemistry, and tools as parts of a documented assembly. Select them by service requirements and the exact application method.
Decorative system
Epoxy flake floor systems
Specify primer, receiver coat, partial or full broadcast, scrape, clear coats, texture, and finish as one compatible system.
Explore topicDecorative system
Metallic epoxy flooring
Plan substrate, background, metallic body coat, visual variation, mockup, topcoat, service limits, and repair expectations.
Explore topicLayer-role comparison
Polyurethane vs epoxy flooring
Compare named products by primer, build, and finish role instead of treating two broad chemistries as universal competitors.
Explore topicFinish selection
Epoxy floor topcoat selection
Choose a compatible epoxy, polyurethane, or polyaspartic finish by UV, wear, chemicals, texture, sheen, and schedule.
Explore topicApplication and QC
Epoxy flooring application tools
Select measuring, mixing, placement, movement, broadcast, and inspection tools from each product's documented method.
Explore topic6. Diagnose failures and explore applications
Similar symptoms can come from different mechanisms. Preserve evidence and locate the failure before selecting removal, repair, or replacement.
Failure analysis
Why epoxy floors peel
Locate the failure plane and assess profile, contamination, moisture, concrete strength, interfaces, cure, and service before repair.
Explore topicDefect diagnosis
Bubbles, blisters, and pinholes
Distinguish mixed air, concrete outgassing, pinholes, moisture mechanisms, and trapped volatiles before prescribing repair.
Explore topicOutdoor aggregate overlays
Pebble-stone surfacing
Evaluate binder chemistry, drainage path, UV exposure, installation control, and traffic before selecting a system.
Explore topicHow this guidance is built
Epoxy Science treats flooring as a technical assembly rather than a single can of coating. Our research framework prioritizes standards, manufacturer technical documents, and occupational-safety guidance.