Truly adhesive-free (also, no tackifier advised): Coral Click, Modul’up, Allura puzzle, Allura click, Allura Flex (up to 150m2), Colorex Plus, Coral loose lay tiles, Enduro Click, and Marmoleum Click. Eternal de Luxe and Step Fastfit can be adhesive-free within clear boundaries. See our fast flooring solution here