What to Expect When Installing an ESD Flooring System
Installing an electrostatic discharge (ESD) floor is more than just applying a coating—it’s a multi-step process that balances schedule, system requirements, and facility constraints. This guide outlines how resinous ESD systems are typically installed, including key stages like surface prep, moisture testing, and coating application. We also touch on alternative ESD-compliant flooring types for comparison.
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EXAMPLE PROJECT SCENARIO
To help illustrate a typical ESD epoxy flooring installation, we’ve created an example project based on a real-world electronics manufacturing facility:
Electronics Assembly and QA Lab (Lab): Approximately 29,000 square feet requiring an ESD epoxy and polyurethane flooring. Joint Filling Scope: Nearly 6,000 linear feet of joint repair and filling throughout all areas to ensure a monolithic and compliant substrate before ESD installation.
This resinous ESD epoxy flooring installation is representative of static dissipative systems used across semiconductor, aerospace, and electronics manufacturing environments.
Site Assessment & Pre-Install Walkthrough
Every successful ESD flooring installation begins with a thorough site walkthrough. This in-person visit allows the resinous flooring contractor and facility manager to review the floor plan, confirm the intended scope, and align on system performance requirements for each area.
During the walkthrough, the condition of the existing concrete slab is assessed, square footage per room is measured, and surface irregularities such as cracks, spalls, or prior coatings are noted. This phase is also used to evaluate the need for concrete repairs, control joint filling, leveling compounds, or moisture mitigation.
On average, this phase takes 1 to 2 hours depending on facility size and complexity. As an experienced ESD floor installer, this site visit is completed as part of the sales process and is not considered a project workday.
Moisture Testing
Moisture testing is essential for verifying substrate readiness prior to ESD flooring installation. Excess vapor in the slab can weaken bond strength and disrupt the floor’s ability to safely dissipate static electricity. Two tests are used to evaluate moisture levels: The Calcium Chloride test measures surface emissions (MVER) and the Wagner Rapid RH test assesses internal humidity within the slab.
Full testing and results typically require at least 3 days. See our FAQs for how each test works and what moisture levels are considered acceptable for ESD flooring.
Concrete Repair and Joint Filling
Before any ESD flooring system can be applied, the concrete slab must be structurally sound and properly prepared. This includes repairing cracks, spalls, and delaminated areas using industrial-grade mortars, and filling control joints with semi-rigid filler to ensure a smooth, monolithic surface.
In our example facility, over 6,000 linear feet of joint filling was required along with light surface repair—spanning approximately three days. Time and labor requirements for this phase scale with joint density, slab condition, and whether joints need full reconstruction. Significant deterioration will require extended prep time.
Shot Blasting
Once structural repairs are complete, the floor is shot blasted to remove contaminants and create a textured surface profile—an essential step for the multi-layered ESD epoxy flooring.
In the 29,000 sq. ft. lab area of our project example, shot blasting was completed in two days. Divided areas with smaller spaces and tight configurations may extend this timeline to three or four days
Moisture Vapor Barrier
If slab testing reveals elevated vapor emissions, a moisture mitigation layer must be installed before applying any ESD coating. This barrier protects the resinous system from moisture-related failure and serves as the primer for the epoxy base layer.
Our single-room example lab allowed one day for the vapor barrier installation, with an 8–12 hour cure time before continuing. The timeline for this phase depends on whether the barrier is needed at all, plus factors like square footage and layout segmentation.
ESD Resinous Flooring system
Our resinous ESD epoxy and polyurethane flooring solution is engineered for electrostatic control, chemical resistance, and durability. This multi-layer ESD system begins with a primer coat—either a previously applied moisture vapor barrier or a standard epoxy primer. In our example facility, the primer—installed the prior day as a moisture vapor barrier—served dual duty as the system’s first coat.
The next layer is a high-build epoxy body coat that forms the structural foundation of the system. Once cured, copper grounding strips are laid across the surface at a rate of one strip per 1,000 square feet and connected to verified grounding points. A final ESD-rated polyurethane top coat completes the floor, delivering a durable, dissipative surface with a clean industrial and scratch-resistant finish. This combination of layers creates a high-performance conductive flooring system that meets demanding electrostatic control requirements.
For the 29,000-square-foot lab, this phase required two days: one for the epoxy body coat, and one for copper strip installation and polyurethane topcoat application. Each layer was followed by an overnight cure time of 8 to 12 hours before progressing to the next.
Electrostatic Dissipating Testing
The final phase of the project is ESD compliance testing to verify that the flooring system meets static control specifications. Testing is performed the day after the topcoat is applied and includes surface resistance measurements, point-to-point and point-to-ground resistance tests, and confirmation of grounding continuity. This test ensures that the installed system meets static control thresholds expected of certified static dissipative coatings used in mission-critical environments. In our example facility, this process took approximately 2 to 3 hours, after which the space was cleared for occupancy and operational use.
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Installation follows a fixed sequence: slab testing, mechanical prep, grounding-grid installation, conductive coating application, then resistance verification. Every layer affects the final path to ground. Slab assessment comes first, meaning moisture testing plus repair of cracks, joints, and contamination, since a compromised substrate undermines both bond and conductivity. The surface is then mechanically prepared by shot blast or diamond grinding to the profile the coating system specifies. Next a copper grounding grid and ground-connection points go in, bonded to the building’s electrical ground before any resinous body coats. Conductive primer and ESD body and top coats are applied and cured per the product data sheet. Finally the floor is measured to ANSI/ESD STM7.1 before turnover. Craftsman Concrete Floors self-performs every step with in-house W-2 crews and delivers a documented STM7.1 test report at closeout.
The grounding grid is a network of conductive copper strips laid into the conductive primer and bonded to verified electrical ground points before the ESD coating goes over it. Grid layout and ground-point spacing follow the flooring manufacturer’s system requirements and the facility’s ESD-control plan. Each connection is terminated at a verified electrical ground and documented on the turnover drawing. Assuming continuity from nearby steel is how floors end up ungrounded. The grid is what turns a resistive coating into a system with measurable resistance-to-ground; surface resistance alone does not protect product. Ground points are labeled and left accessible so periodic re-testing can verify the same path year over year. Craftsman Concrete Floors installs, bonds, and documents grounding on every conductive and static-dissipative system it places.
Most ESD installations run several days per area, and the floor cannot take traffic until the system cures and passes testing. Prep, grounding, coating, and cure each claim time. Duration scales with square footage, slab repairs, moisture mitigation, and the number of coats the specified system requires. The product data sheet and site temperature set the cure windows between coats and before traffic. Phased scheduling keeps adjacent production running during installation: nights, weekends, section by section. Final resistance testing per ANSI/ESD STM7.1 happens after full cure, so verification is built into the schedule from the start. Craftsman Concrete Floors sequences ESD installs around live manufacturing schedules nationwide, including shutdown-window work.
It can, and it routinely is. ESD floors go in phased inside operating electronics, aerospace, and pharmaceutical facilities without a full shutdown. Work is sectioned so production lines, aisles, and cleanrooms stay live while adjacent areas are coated and cured. Containment, air handling, and security protocols support work in controlled and badge-access environments. Grounding continuity is planned across phase boundaries so every section ties into the same verified grid. Craftsman Concrete Floors phases installations in occupied and security-controlled facilities, including night and weekend windows.
The finished floor is verified by measuring resistance to ANSI/ESD STM7.1, both point-to-point and resistance-to-ground, and documenting the results in a turnover report. Readings confirm the floor lands in its specified class: conductive (below about 1×10^6 ohms) or static-dissipative (1×10^6 to 1×10^9 ohms). Facilities running ANSI/ESD S20.20 programs typically also qualify the flooring/footwear system per STM97.1 and walking body voltage per STM97.2. The turnover package records test locations, measured values, ground points, and the products installed. That is the documentation QA teams and auditors ask for. Testing and documentation come standard on every Craftsman ESD installation, with re-certification programs available afterward.