Substrate preparation:

Apply to a sound and clean substrate (without cracks and delaminations), degreased, even and dry, and free of biological contamination or chemical efflorescence. The substrate should be free of algae/ fungi growth. In case of microbial contamination, the substrate should be cleaned with a power washer. Subsequently, a good quality anti-fungal solution for removing microbial contamination is to be applied per the product manual. The substrate must be protected against capillary action, moisture intake and precipitation. Any loose layers not bound to the substrate (i.e. loose render or flaked coatings) should be removed. Wash and degrease old or dirty substrates with water and a cleaning agent.

Priming:

Absorbent substrates must be primed with Terrix® PR-UA or dampened prior to the product application.

Preparation:

Gradually pour the contents of the packaging into a container with a measured amount of clean and cool water (approx. 4.5 litres) while continuously mixing (with a low-speed mixer fitted with a basket stirrer) until homogeneous/ creamy consistency is obtained. The mixing time is approx. 3-5 minutes. If the product is not used immediately, the mixing should be stopped, and the mortar should be stirred again before being used. The prepared mortar should be used within 1 hour or 30 minutes after remixing.

Note: Too long and too intensive mixing may lead to excessive airing of the mortar and, consequently, lowering its properties.
Do not add any other materials during the preparation of the mortar.
During mixing, the product may generate a significant amount of dust.

Application method:

Apply the prepared mortar to the substrate manually using a stainless steel trowel in a maximum of 3 layers, each 10 mm thick. The middle layer should be scratched sharply with a notched trowel when applying several layers. When applying more than one layer, if the previously applied layer exhibits “drops” of water, the surface must be wiped before applying the next layer.
Depending on the degree of wall dampness, the render thickness should range from 10 to 30 mm.

After the application and initial setting of the final layer, the render can be smoothed with a sponge or felt float.

Warning:
The product has an alkaline reaction. Protect the eyes and skin. PPE should be used during the work. If eye contact occurs, rinse immediately with plenty of water, and if irritation occurs, seek medical attention. 

Drying:

It is assumed that the setting and hardening time of the plaster mortar is one day for each 1 mm of product thickness. After this period, the render can be covered with plasters and paints with high vapour permeability. Note: If, after application, there is high temperature and low air humidity and/or the render is exposed to direct sunlight or wind, the wall should be moistened with water for min. seven days. 

Useful hints:

Low temperature and high air humidity can significantly extend the drying time of the product. To ensure adequate water tightness, completing each wall in one working cycle is necessary. While applying and drying the mortar, rainless weather should prevail with the air temperature ranging from + 5 ° C to + 25 ° C. Wash the tools with water immediately after finishing work. Avoid working on surfaces exposed to direct sunlight, strong wind and high air humidity. To protect the uncured render against the harmful effects of inclement weather, it is recommended to use appropriate protective nets on the scaffolding.