Most ESD floors are installed using conductive adhesive to secure the flooring material to the concrete subfloor and provide a conductive ground plane to carry static charges to ground.
For some applications, however, adhesive is not the optimal solution:
- In areas requiring movement of tiles to access under-floor wiring or utilities.
- In applications, such as operational call centers, where personnel may be averse to working while chemicals are applied in their presence;
- Most adhesives give off an odor during drying.
- In applications where a shutdown cannot be tolerated;
Mission-critical spaces such as flight towers must be operational 24/7 and cannot tolerate shutdowns. Floor tiles cannot cover an adhesive until it begins to cure and the space cannot be occupied until the adhesive has fully dried—generally, this requires a one- to two-day shutdown. This can be problematic in 24/7 mission-critical spaces—9-1-1 dispatch areas and FAA flight-control towers, for instance—where the space must be continuously operational.
- In environments where the floor is likely to be redeployed or repurposed;
- Many companies lease space and the capital expense associated with a permanently-attached ESD floor may feel like a bad investment. A glue-free solution offers the owner the ability to take the floor with them when the lease expires or the space becomes repurposed.
Solutions
Raised-Access Floor Panels and PosiTile Carpet Tile
Raised-access floor panels are typically used in areas requiring under-floor utilities or wiring. If the panels are bare metal, and the ESD tile covering the panel is deemed to be curl-free without the use of any glue, there is no need for conductive adhesive. Most ESD flooring materials would be grounded upon contact with the bare metal panels. Products such as ShadowFX PosiTile can be installed directly over bare access panels, without the use of any adhesive.
PosiTile ESD Carpet Tile
With its surface-hugging backing, ShadowFX PosiTile lays flat without any dots or strips of glue. Buttons are welded ultrasonically to the underside of ShadowFX tiles, creating a precise one-to-one match between the tile and the floor panel, allowing for quick, easy swapping of carpet tile, and eliminating need for shutdowns and work interruption. Meets all key industry safety guidelines, including Motorola R56, ANSI/ESD S20.20, ATIS 0600321 and FAA 019f.
Conductive Underlayments
A glue-free, floating floor can also be installed over a proprietary conductive underlayment such as Staticworx GroundBridge™. The GroundBridge underlayment, like bare metal access panels, acts as the electrical unifier between tiles. Like bare metal access flooring panels, GroundBridge grounds the ESD flooring installed above it.
A lightweight material composed of conductive cellulose, this conductive, glue-free grounding system can be installed over any existing subfloor. Installation is clean, easy, and fast, with no VOCs. A floating floor can be created with carpet tiles by simply rolling GroundBridge strips over the existing floor, then joining the corners of Staticworx ESD carpet tiles, using dimensionally-strong, self-adhering TacTiles®.
Interlocking or Self-Adhering Flooring Materials
Neither interlocking floors nor self-adhering ESD flooring materials require adhesive and both can be installed directly over most existing subfloors with no need for moisture mitigation.
Groundlock Extreme interlocking floors are easily installed by simply placing the tiles on the existing floor and hammering the interlocking edges into place. This odorless, easy-to-install flooring system meets all the same static-control parameters of a full-spread, conductive adhesive installation without the commitment of a permanent installation, making it an ideal solution for leased spaces, concrete slabs with vapor issues, and even for occupied spaces, such as labs that cannot be shutdown. If an area becomes repurposed, it’s no big deal: Simply lift and move the interlocking tiles.
Self-adhering floors
Self-adhering floors come with a pre-applied adhesive on the underside of the material.
EclipseGF, a moisture-resistant self-adhering rubber sheet floor, comes with a pre-applied, moisture-resistant adhesive backing. The self-adhesive backing adheres to the subfloor as it’s laid, allowing for immediate traffic, without the one- to two-day delay associated with adhesives. Appropriate for almost any environment, EclipseGF is specifically targeted toward clean rooms, electronics manufacturing, call centers and 24/7 spaces, where shutdowns cannot be tolerated.
Conductivity and Performance Parameters
Whether installing an ESD floor with conductive adhesive on concrete, over bare metal access panels, or with a conductive underlayment, the same rules apply:
The material under the surface should measure more conductive (in other words, have less electrical resistance) than the surface of the floor.- If the floor surface is more conductive than the underlayment, unintended electricity (stray voltages) could flow across the surface, as opposed to through of thickness of the floor, to the underlying ground plane. This scenario could pose a safety threat to people working near energized equipment.
- The glue-free ESD flooring surface, whether interlocking or self-adhering, should meet all national and international standards for electrical performance and safety, including ANSI/ESD S20.20, FAA 019f, Motorola R56, and ATIS 0600321.
The material under the surface should measure more conductive (in other words, have less electrical resistance) than the surface of the floor.Suggested Reading
- 7 Common Mistakes Selecting an ESD floor
- Choosing ESD Flooring for:
- ESD Footwear: What Is It and When Is It Necessary?
- Facility Managers’ Guide to Selecting ESD Flooring
- Keeping Architects Grounded
- The Need for Due Diligence in Specifying Static-Free Flooring
- Standard of Care for Specifying Floors in Mission-Critical Spaces
- Static-Control Footwear for Electronics Manufacturing and Handling Applications
- Understanding the Hidden Costs of ESD Flooring
With Staticworx ESD flooring, you never have to choose between performance and aesthetics. Our beautiful, high quality ESD carpet tile, vinyl, EC rubber tile and sheet goods, and ESD epoxy floors are as beautiful as they are functional.
