vdw 840 plus

vdw 840 plus 1K-FugenMörtel is the ready-to-use, pre-mixed joint mortar that is simply washed into the joints — for areas with foot traffic: just open the bucket, cut open the PE film, distribute in partial quantities on the area, wash in with water, sweep off, done! Specially for factory-impregnated or sealed surfaces. Suitable for natural stone and concrete stone paving, slabs and clinker surfacings on garden paths, in house entrance areas and on patios with purely pedestrian loads.

• can be washed in with plenty of water without loss of quality
• self-compacting effect
• workable in light rain
• almost binder-free surfacings
• ready to use
• suitable for ceramic terrace elements

Application

Compared with conventional air-curing 1K joint mortars, vdw 840 plus 1K-FugenMörtel is distinguished by higher strength and the option of washing the mortar into the joints with a water jet.

Requirements Stable and permanently water-permeable substrate. Joint depth ≥ 30 mm, joint width min. 3 mm, max. 20 mm, exterior and surface temperature ≥ 5 °C, max. 25 °C.

Tools Knife, hard-rubber squeegee, coconut broom and water hose with spray nozzle.

Test area With natural and concrete stone paving, contact between vdw 840 plus 1K-FugenMörtel and the stone surface may cause visual changes. In general we strongly recommend laying out a test area.

Filling the joints Cut open the PE bag. Pre-wet the surface thoroughly. Then distribute the mortar portion by portion on the area and wash it into the joints with a soft water jet and hard-rubber squeegee. Clean excess mortar residues off the paving surface with a water spray jet, without washing out the joints. Sweep off the paving surface with a damp coconut broom and smooth the joint surface in the process. Chamfers must be swept clear.