No. You must use conductive adhesive. Dissipative and conductive tiles require an underlying ground plane to tie all tiles to the same electrical potential. The conductive adhesive provides physical bonding, but it is also a ground plane. Without conductive adhesive, each tile would be an island with no path to ground and no interconnectivity to the other tiles in the installation.
This electrical model can also prevent stray voltages from riding on the flooring surface. Electrical currents, including static electricity, seek the fastest pathway to ground. The pathway should be designed so that electricity flows through the flooring material or tile to a more conductive material underneath.
In the unlikely event of a short circuit, stray voltage on the surface of the floor could put personnel in harm’s way. Directing charges downward, to the adhesive, adds a level of safety to the installation.
Note: The adhesive should always be more conductive than the flooring material.
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