special repairing mortar

special repairing mortar

Mortak-823 is a special cement repair mortar that is in dry powder form and needs only water to be used. This product, after mixing with water, has excellent adhesion and paste properties and is used to repair horizontal and vertical elements, especially elements exposed to water structures. The initial resistance of this product is very high.


“Mortak-823 has a wide range of applications, including: ” Leveling and repairing porous surfaces Installation of decorative material parts Repair of horizontal and vertical elements Execution of sealing muscle in aqueous structures Leveling unevenness caused by formatting errors Can be used on surfaces in direct contact with water Repair of depressions, cracks and surface cavities


Suitable mechanical strength High speed of initial resistance Easy to use on clean and healthy surfaces Resistant to corrosion and corrosive agents Can be used on a variety of interior and exterior surfaces Ease of use just by adding water to the mixture No shrinkage and cracking after execution Fast setting and high resistance in the early hours High resistance to melting and freezing cycles Dough and very good adhesion of the mixture during application Ability to seal and make the sections impermeable


This product is supplied in 25 kg bags.

Typical properties

physical state: powder color: grey density: ۱.۸ – ۲.۰ kg/L * The mentioned data are obtained based on the latest controlled laboratory tests.

application guidline

The mixing water ratio required for this product is 5 kg per 25 kg bag. It is best to complete the entire surface repair operation within 15 minutes after adding water to the mixture. It is recommended to run this product at an ambient temperature of 10 to 35 degrees Celsius and the temperature of the mixture during the run should not exceed 30 degrees.


First, pour the water required for the mixing plan into a blender container and then gently pour the powder into the water. Turn on the mixer and continue the mixing process at low speed (less than 500 rpm) for 1 minute. Try to complete the repair operation in less than 15 minutes. Apply the prepared mortar with a trowel or spatula on wet surfaces. Treat the repaired area with waterproofing or plastic wrap for at least 3 days. All parts in contact with the repair mortar should be free of any dirt, grease, dust, etc. and it is better to moisten it with a little water.

storage and shelf life

Mortak-823 is maintaned in closed packaging and away from direct rays of sun and ice situation. in the case of above situation, the useful life of the product is 12 months from the date of production.

health and safety

there is not need for special actions but for observing safty actions, it is better to use protection gloves and eye glasses. In case of direct contact with skin or eyes, rinse immediately with water and see a doctor. Please refer to the Safety Data Sheet (MSDS).
اسکرول به بالا