Cement Mortar anti-leaching waterproof, for quick repairs

Code: OSM.0080

Components: 1

Appearance: Powder

Anti-leaching mortar with plastic consistency, fast-hardening, based on silica fume, high resistance hydraulic binders, polymeric binders and selected siliceous aggregates; free from chlorides, aluminium, metal powders and harsh substances.

Linee di appartenenza

Certification obtained and Standards

Specification for Mortar for Masonry - General purpose rendering/plastering mortar (GP)

EN 998-1

Specification for Mortar for Masonry - General purpose rendering/plastering mortar (GP)

General characteristics


Highlighted product


Temperature of use: +2 / +30 °C


Shelf-life: 12 months


Quick setting product


Maximum diameter of aggregate: 4 mm




Pot-life: 10 min


Mix with water: 15 %

Technical specifications


2.125 kg/m³

Compressive strength

> 55 N/mm²

Capillary absorption

0.1 kg•h^0.5/m²

Flexural strength

> 7 N/mm²

Bonding force

2.35 N/mm²

Static elastic modulus

24000 N/mm²

Available colours

- Gray

Packaging and dimensions

- Bag 25 kg

- Pallet: 50 x (Bag 25 kg)


OSMOCEM 447 is a rheoplastic, anti-leaching, quick-setting cement mortar for coatings in critical conditions, repairs, waterproofing even in the presence of moderate water runoff, coatings and fast renovation of hydraulic works. It is based on fast hardening hydraulic binders and superpozzolanic reactive fillers. It hardens without problems even if it is immersed in water. Due to the large amount of superpozzolanic reactive agents within the mortar itself, the water does not affect the cement granule at all and thus it does not leach the conglomerate. Thanks to its plastic consistency, OSMOCEM 447 is suitable for both horizontal and vertical coating applications.


Approximately 19 kg/m² of OSMOCEM 447 for every centimetre of thickness to be implemented (approximately 1900 kg per cubic metre).

Use fields

Repairs, fast waterproofing even in the presence of moderate water runoff, quick coatings and renovation of hydraulic works, even in the presence of strong humidity and in very cold temperature conditions: raft foundations, walls, tanks, pipes, pondage, etc. To quickly close large gaps in pilings and diaphragms. Repairs and quick coatings of road circuits and airport runways. For the correction of the rapidity of hardening of reinforced fibre mortars of the REPAR family.

Preparation of supports

The application surfaces should be clean, free of incrustations, dust, non-adhering parts, etc.

Use method

Pour about 2/3 of the mixing water into the mixer, add OSMOCEM 447 and the remaining water; continue to mix until a homogeneous, lump-free mixture is obtained. The mixture water should be about 15%-16% by weight (4-4.5 litres per bag), adjust the amount of water based on the different application situations that the product is designed for. Apply on site and float with all due care in order to obtain the best compactness of planar recovery or of the coating.

Application methods

- Brick trowel

- Finishing trowel

Tool cleaning

- Water

Permitted supports

- Concrete

- Rock walls

Warnings, precautions and Ecology

It is always essential to carry out preliminary tests to check the suitability of the product based on specific requirements.

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