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Injection Grout/Mortar 5

Special lime mortar based on natural hydraulic lime for filling cavities, filling cracks and joints with a caulking gun or injection pump and for strengthening natural stone and clinker masonry indoors and outdoors, especially for objects relevant to monument preservation.

HISTOCAL ® injection mortar - M5 - consists of natural hydraulic lime (NHL) according to EN 459-1, pozzolan, grain graded crushed lime sand and additives and is a purely lime-bound, cement-free product. HISTOCAL ® injection mortar – M 5 – is suitable for filling cracks and cavities , particularly in historical buildings and when renovating masonry. It impresses with its soft, plastic consistency , is pumpable and pressure-resistant .

Technical Data
Product Brochure

Spreading Rate

21 l wet mortar each 25 kg (55lb) bag

Water Consumption

approx. 0.33 l/kg


HISTOCAL® Injection mortar – M5 consists of natural hydraulic lime NHL 5 acc. to EN 459-1, Puzzolan, grain-classified crushed lime sands and improvement additives.


• free of cement

• soft, plastic consistency

• lime-bound

• suitable for pumping

• pressure-stable


HISTOCAL® Injection mortar – M5 is suitable for the filling of cracks and hollow spaces, in particular at historic monuments and for masonry renovation.


The substrate must be clean and free from loosely attached particles. A sufficient preliminary wetting is compulsory.

Special notes

Protect fresh mortar against fast drying-up. The air and surface temperature must be at least 5 ° C and maximum 25 ° C. HISTOCAL® Injection mortar – M5 shall only be used in the original state without additives.


Dry, if possible on wooden shelves and protected against draft.

Technical data

Mortar group: M5 acc. to EN 998-2

Fire Class: A1

Compressive strength after 28 d: >5N/mm2

expected compressive strength after 56 d: >10 N/mm²

Solid mortar density: 1.45 kg/dm³.

Largest grain size: < 0.7 mm

Water absorption: W0

Safety instructions

Mortal will react very alkaline with water, thus: Protect skin and eyes, rinse thoroughly with water in case of contact, immediately contact doctor in case of eye contact.

Quality-monitored production

HISTOCAL® Injection mortar – M5 is continuously tested in our plant laboratory within the scope of our in-house monitoring with respect to the fulfilment of composition and properties. This will ensure a uniform quality of the product.


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