Grout mortar for masonry: what should be considered?

The joints in the masonry should have a uniform color and of course do not tear when drying. Also cavities in the joints are urgently to avoid, so it does not come to blasting. What is there to consider for the best possible result?

Joint mortar on masonry in joint smoothing line

If you want to perform a "joint smoothing line", ie use the still-moist masonry mortar as grout at the same time, you need a suitable ready-mixed mortar with a high ductility, a so-called dry mortar.

With this grout grout you can achieve a uniform joint color, if you work quickly and carefully. But it takes a certain amount of practice.

Keep in mind that already dried mortar will give a darker joint when spreading than even very soft mortar: This is why you should work better in small sections.

Small differences in the color of the dried grout in the masonry, however, can hardly be avoided, even with professional work, as the material reacts to even slight fluctuations in humidity.

Apply grout later on masonry

When grouting after drying the masonry mortar, there are also some points to consider.

  • Scrape mortar joints 1.5 to 2.0 cm deep
  • Thoroughly clean the surface
  • Preserve the surface
  • work fully-fledged, close all cavities
  • Immediately wipe mortar contaminants with a damp cloth

Do not add new water to grouting mortar during grouting, which is just applied to your masonry: this causes unsightly color differences. When you stop work, cover the freshly grouted wall well.

Tips & Tricks

Fresh mortar joints are delicate! Protect them from the weather by hanging them with foil. In warm sunny weather, you can treat the joints with water during drying so that they do not burn up and break.

Video Board: How To Tuck Point Masonry Rock or Veneer with Mortar Using Grout Bag