MINERALIT GT – Primer for mineral dry mortars
Coloured product based on an acrylic dispersion and mineral fi llers intended for proper preparation of substrates for MINERALIT T and MINERALIT T AKORD mineral thin-coat renders. It is used for priming reinforcing coat in EPS-based
EWI systems: KABE THERM SM and KABE THERM SM RENO , KABE THERM AVANT and in EWI systems based on mineral wool: KABE THERM MW, KABE THERM IN MW, as well as for priming lamella mineral wool in the KABE THERM SG EWI system. Intended for use on mineral substrates (e.g., concrete, lime render, cement-lime render and cement render), as well as on substrates covered with a well-bonded plastic-based paint coating.
Base binder: | co-polymer binder; |
Pigments: | titanium white; |
The content of volatile organic compounds VOC: | cat. A/g. The product contains less than 30 g/l VOC; |
Colour: | white; |
Average coverage: | approx. 0.20 l/m² (depending on the substrate absorbency); |
Density: | approx. 1.55 g/cm³; |
Contents of solids: | approx. 60%; |
Temperature of application (air and substrate): | from +5°C to +25°C; |
Relative air humidity: | ≤75%; |
Packaging: | Disposable plastic packaging containing 5 and 10 litres of product. |
Storage: | Product should be stored in sealed packaging, in a cool room, but protected from frost. Opened packaging should be tightly closed and used as quickly as possible. Note: The product must be kept out of the reach of children. |
Shelf life: | 18 months from the date of production printed on the packaging, with originally sealed packaging. |
• Improves the top coat adhesion
• Reduces and equalises substrate water absorbency
• Reduces the effect of substrate showing through
• Makes render application and texture modelling easier
SUBSTRATE PREPARATION: Substrate should be sound/stable (without scratches and cracks), degreased, even and dry, as well as free of biological contamination and chemical efflorescence. In case of algae/fungi growth, the substrate should be cleaned mechanically and then washed with water and disinfected with ALGIZID. Any loose layers, not bound to the substrate (e.g., loose render or flaked coatings), should be removed. Old and/or dirty substrates should be washed and degreased with water and CLEANFORCE cleaning agent. For particularly uneven substrates, first use levelling compounds, and then smooth out the surface with finish levelling and smoothing compound. Small unevenness can be smoothed right away using a levelling and smoothing compound. Use the above products according to their technical data sheets. An absorbent substrate should be primed with an adequate product before applying levelling compounds or base coats. If the product is applied on new mineral substrates (i.e. concrete, cement-lime render and cement render) – a minimum 2-week curing period is required. Before using the product in KABE THERM SM and KABE THERM SM RENO, KABE THERM AVANT or KABE THERM MW EWI systems, all base coats should be applied in accordance with the requirements for external thermal insulation composite system (ETICS). Before applying the product, the reinforcing layer has to be fully dried. This can take 3-4 days in typical weather conditions.
PRODUCT PREPARATION: The packaging contains a ready-to-use product. If necessary, the product can be diluted by adding a small amount of water (adding max. 10% by vol.). Quantity of added water may vary depending on the substrate type, drying conditions and application method.
APPLICATION: The product should be applied on the substrate with a paint brush or roller. In the case of the garage system, a machine application is used with the MINERALIT T AKORD mineral spraying render.
DRYING: The curing period of the product applied to the substrate before applying the render is about 24 hours. Protect the freshly applied coat against precipitation and condensation until it dries completely.
USEFUL HINTS: During the application and drying of the product, rainless weather should prevail, with an air temperature and the structure above +5°C. Drying time may be longer due to low temperatures and high relative humidity. If this is the case, it is necessary to wait until the primer dries out completely before applying the render. Avoid applying the product on surfaces directly exposed to sunlight or during strong wind. In order to protect the undried product layer against severe weather conditions, it is recommended to use appropriate protective meshes on scaffolds. Tools should be cleaned with water immediately after work is completed.