Check of substrate
The ready floor covering is only as good as the substrate allows. Therefore, check the substrate carefully and prepare it for the installation of the final flooring. The substrate must be dimensionally accurate and technically suitable in order to be able to provide a flawless floor covering on it. Dimensionally accurate means sufficiently level, flush, horizontal or with the planned slope. Technically means load-bearing, clean, dry, dimensionally stable and free of adhesion-impairing particles. The tests described here serve to assess the substrate in order to be able to select a suitable substrate pre-treatment afterwards.
Simple & safe to the goal
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The tensile strength of surface
The traction force (pull-off strength) is measured without drilling by pulling a metal disc bonded on the prepared concrete or screed substrate. Paste-like adhesives without a consolidating effect are to be used. Solvent-free adhesives must be used, if the substrate is covered with polymer-modified weber.floor levelling compounds. PMMA adhesives are not suitable.
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The tensile strength between layers
For testing the adhesion of layers to each other, pre-drill in an appropriate diameter. We recommend using solvent-free, paste-like epoxy resins, such as the quick-curing EP primer weber.floor 4715.