Blocks or bricks must be clean and dry; they should not be icy or frozen.
Remove any weak and/or flaking layers from the substrate.
Saturate particularly water-absorbent bricks/blocks with water.
Mix SAKRET GMS-F in a clean container with cold water (use warm water in winter) until a homogeneous, lump-free mixture is formed.
It is recommended to use a mixer with a speed of 600 RPM.
After the maturation time (~3 minutes), remix the mixture.
The temperature of the mortar at the time of application should not be below +8°C.
After completion, cover the structures immediately with a waterproof layer followed by insulation, such as polyethylene film and mineral wool boards.
The temperature of any substrate or formwork must be such that the concrete does not freeze before reaching the critical or calculated temperature (minimum +5°C).
Use mortars with a class of at least M5.
Remove any snow and ice from all bricks and blocks before laying.
It is advisable to perform thermal calculations for the concrete structure (cooling time of concrete, required insulation properties, and temperature of concrete placement).
Above +5°C, anti-freeze additives act as hardening accelerators.
Technical data refer to a temperature of +20°C and 50% relative humidity. Lower temperatures increase, while higher temperatures decrease the stated values.
Protect the mortar during the curing phase from sunlight, drafts, and excessive temperatures (>30°C).
Keep fresh mortar protected from rain and rapid drying.
Once the mortar begins to set, do not add water!
Immediately after preparing the mortar, wash containers and tools with water.
Hardened mortar can only be removed mechanically.
Contains cement; reacts alkaline.
Protect skin and eyes; follow technical instructions. If mortar contacts the eyes, rinse with plenty of water and seek medical attention if necessary.
Protect packaging from weather conditions; store on wooden pallets in a cool, dry place. Cover any opened packaging immediately.
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