Stopping of water leakages

Weber fast-setting mortars are used to waterproof joints, break-outs, cracks and connections that may be subject to water pressure during or after works. Thanks to the fast-setting hardening and hydrophobic properties of such mortars, defects, e.g. water ingress in concrete, screed and masonry, can thus be closed. The mortars are also suitable as fast-setting groove mortars, patching/levelling mortars or blocking mortars for injection works.

Simple & safe to the goal

  1. 1. The cleaning of substrates is essential so that a load-bearing base will prevail for the next products. In the case of dry substrates, pre-wet them until dull-moist.

  2. 2. Apply a full-surface egalizing layer with for ex. the watertight mortar weber.tec 933, using a stainless steel smoothing trowel.

  3. 3. Joint depth should be 3 - 4 times higher than their width. Cracks with the wrong sizes (too thin or not deep enough) must be widened/cut to the right sizes.

  4. 4. For stopping water-bearing cracks, use the quick-setting plug mortar weber.tec 935. Mix a small quantity with some water and mould it by hand into a wedge-shaped tenon.

  5. 5. Afterwards, insert the material into the water-bearing area. Press on with the hand until the mortar withstands the water pressure.

  6. 6. Extend the use of weber.tec 935 on the adjacent areas (around holes or cracks), so that no backwards water ingress and new leakage can occur.

  7. 7. Also, points with water leakage on concrete surfaces can be stopped with weber.tec 935.

  8. 8. The photo shows a concrete pipe after waterproofing.