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Crucial to know


a stainless steel trowel



a long stainless steel float


a drill with a mixer paddle





for woodworm plasters make 3 min. break before structuring .



layer thickness = grain size


Tools Needed

Two Column Carousels
Two Column Carousels

Stone-like & Woodworm-like plaster

General remarks on plaster application:

To avoid discoloration, on one surface use plasters from the same batch number. When plaster is to be applied on armoured layers made of mortars and primed with CT 16, let the substrate dry for 3 days before plastering. Cement plaster substrates must be 28-days old and primed with CT 16 in order to be plastered again.

The application of stone-like and woodworm-like thin layer plasters should be done in the same way:

  • On the prepared base coat (primed or not – it depends on the system)
  • Keeping the thickness of the plaster grain (e.g., 1.5 mm plaster = 1.5 mm application)
  • Using a stainless-steel trowel or long float at ~30° angle
  • After applying, smooth and remove excess material from the wall

Application of Mosaic Plaster

Protection of ground level zones:

Mosaic plasters are usually applied on the pedestal parts of a building, which are exposed to dirt, water spillage and damage. These areas should be additionally protected.

Mosaic plaster application:

CT 77 should be applied evenly at a thickness of 1.5 grain size on a substrate primed with CT 16 in a matching color.

  • Spread using a flat trowel
  • Do not structure further—just smoothen while wet
  • Do not press hard, do not sprinkle water
  • Work continuously on one surface without breaks
  • If stopping, use self-adhesive tape to form clean break lines

Surface structuring

The structuring of all plasters should be done with a PVC trowel, but the way of structuring depends on the type of plaster:

  • Structuring stone-like plasters can be done directly after application. Just keep a trowel flat to the surface and make big circles or 8-like moves. As the plaster starts drying, your circles should be smaller.
  • Structuring woodworm-like plasters should be done after a short break (ca. 2-3 min.) after the application, in order to avoid sticking material to the PVC trowel during structuring and to improve performance.

If the structuring is vertical, the final smoothing, after the application on the wall with steel trowel, should be done horizontal and vice versa. Avoid crossing the lines coming from application and structuring, this will also influence on the final structure view.

Technological breaks

Generally, on one wall, the work should be done without breaks as it increase the risk of having differences in the plaster's appearance, caused by changes in the setting and drying process. Plan your job in such way, so that you take breaks only when the plaster is applied in less visible areas such as— along the edges, facade curves, down pipes, window lines, etc.

Along the expected line of technological break, it is necessary to stick a self-adhesive tape, then apply the plaster and make a structure. Afterwards, remove the tape with some of the remaining material. When the plaster is set, it is necessary to protect the edge of the plaster with self-adhesive tape again on top of already set plaster and apply the plaster on another working area. In the same way it is possible to make joints between different colours and plaster structures.


Tips & Best Practices

  • Weather Conditions: Carry out installation in dry conditions with ambient and substrate temperatures between +5°C and +25°C.
  • Safety Measures: Wear appropriate protective gear, including gloves and safety glasses, when handling mortars and adhesives.
  • Quality Assurance: Ensure all materials are stored and handled according to the manufacturer's guidelines to maintain their effectiveness.

Products used

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