Vandex Injection Mortar (VIM)

Vandex Injection Mortar (VIM) is a product specially developed to stop rising damp in old brick and stonework structures, granite boulder walls, etc...

Before application, Vandex Injection Mortar is mixed with water for 3-5 minutes to form a slurry. 22mm diameter holes are then drilled in the masonry at 110mm centres (alternatively 30mm holes can be drilled at 160mm centres). The mixed product is then injected into the holes using a hand caulking gun or grout pump.

Vandex Injection Mortar consists of Portland cement, specially treated quartz sand and a compound of active chemicals. By means of a chemical reaction between reactive salts in the structure, moisture, and the Vandex chemicals, a crystalline growth will take place which will block all pores and fine cracks. This creates a barrier through which moisture cannot pass. The mortar will tend to tend to fill any fine cracks or voids and will set to form a solid plug, this replacing any material removed by the drilling operation.