Primer

Most substrates need a pre-treatment to fulfil their purpose. Besides mechanic preparatory actions, as e.g. smoothing, roughening, degreasing, removal of loose fragments and dust, etc., so-called primers are applied. The selection of the primer depends on the surface type (screed, wood, etc.), the subsequent measure (floating floor, glue-down installation, etc.) as well as on the manifold tasks of the primer. Tasks may be protection of the substrate against moisture penetration, reduction of the penetration depth of absorbent substrates, vapour barrier against moisture ascending from the underground, dust binding, adhesion promoting, levelling.