Uniflex chamotte plastering compound, 5 kg

Chamotte plastering compound for use in construction, repairs, masonry of fireplaces and their tiles, embedding lightweight fireproof boards, mats, and chamotte slabs and elements onto ceramic and metal substrates. It can be used for minor repairs as well as for the construction of a new fireplace, provided the correct mixing ratio is followed and the maximum layer of mortar in individual layers is maintained up to 5 mm.

Preparation of plastering adhesive and construction mortar:

Depending on the extent of the repair or construction, we decide how much chamotte mortar to prepare at once. For the entire package, a solution of water and water glass (total 1 l) should be prepared in a 1:1 ratio, i.e., 0.5 l of water glass and 0.5 l of water. Pour the contents of the bag (5 kg) into a container and pour in the prepared solution, mix well, and let it stand for about 3 minutes. Then mix lightly, and the mortar is ready for use. It is recommended to prepare only as much as can be worked within 2 hours. In case of work interruption, lightly smooth the mixture in the container and add 1 mm of water. This prevents drying out, and work can be continued by pouring off the water.

Construction and repairs of combustion chambers:

When constructing new fireplaces, we primarily follow the maximum layer of mortar of up to 5 mm. Chamotte bricks and elements should be lightly dampened before construction! For grouting and repairing damaged masonry, we proceed as follows: The repair areas are moistened with water, then filled with prepared mortar, and smoothed on the surface. The repaired combustion chamber should be allowed to dry according to the size and extent of the repair for 12–24 hours. After that, it should be further dried with mild heating (2–6 hours) until the repaired areas harden completely.

Bonding to a metal substrate:

The substrate should be cleaned of all greasy impurities and especially rust. Using a rust remover is recommended. It is advisable to paint the substrate with a thinner mortar before bonding. Let the layer dry, and then proceed with the bonding. The mortar can also be used to protect and repair internal masonry and ovens and metal parts exposed to high temperatures. The mortar can be used in all areas where the temperature does not exceed 1400 °C.

Safety instructions:
When working, use protective gloves, protective clothing, and protective glasses or face shield. Observe basic hygiene rules! After work, wash hands or affected skin with water and soap and treat with an appropriate repair cream. If the eyes are affected, rinse with running water; in case of accidental ingestion, rinse the mouth, drink 0.5 l of water, and seek medical attention. In more serious cases, always seek medical help.

Technical data:
content Al2O3 38–40 %, SiO2 50–55 %, TiO2 1.8–2.8 %.

Thinner:
water/water glass 1:1

Cleaning tools:
water

Storage:
In a dry environment at temperatures 5–25 °C in closed intact containers. Consume within 24 months from the filling date indicated on the packaging.