For Watertight Results

VINNAPAS^® polymer dispersions and dispersible polymer powders are used to formulate waterproofing systems that act as a reliable and long-lasting barrier against water. They include 1-component and 2-component cementitious waterproofing membranes as well as ready-to-use 1-component waterproofing systems. These are easy to handle and can be applied with a trowel, brush or roller.

Waterproofing systems must adhere securely to the substrate, even under water pressure or when exposed long-term to water. In this test, the water impermeability of the specimens under pressure is tested. The standard is met if the waterproofing membranes are still watertight after seven days at 1.5 bar. Waterproofing systems modified with VINNAPAS^® easily meet this requirement.

The ability to bridge cracks is also an important property that is enhanced by VINNAPAS^® polymeric binders. That is because VINNAPAS^® gives waterproofing systems the flexibility they need to bridge fine cracks caused by movement in the building fabric.

Crack-bridging ability is tested in two ways: as per EN 14891, which focuses on tests after exposure to various temperatures, and as per a specially developed WACKER method, which is a rapid test based on ETAG 022.

In wet rooms, waterproofing systems are installed between the masonry and the tiles. Although tiles are almost waterproof, the underlying substrate should be protected against moisture. Reliable waterproofing is therefore needed for preventing damage to the masonry. To ensure that a truly lasting waterproofing is created, WACKER tests formulations under the most realistic conditions possible – waterproofings in combination with tiles. The specimens are stored under various conditions as per EN 14891, after which the tensile adhesive strength is determined.

Another way to determine the flexibility of a formulation is to test its tensile strength. This test shows that formulations based on VINNAPAS^® 754 ED have particularly high tensile strength and are very flexible.