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    Article No. 22205120

    Lithos Arte®

    Mineral mortar for natural stone restoration, made from natural stone and a mineral binder

    Colour: A3 Gobertange dark / fine | 222051
    Colour: A3 Gobertange dark / fine | 222051
    Please choose a colour
    Size / Quantity

    Note: This container size is being phased out and is only available to a limited extent.

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    Product specifications

    Flexural tensile strength (28 days) 3.5 ± 0.5 N/mm²
    E-modulus (DIN 1048) 15 kN/mm² Coarse: 24 kN/mm²
    Bond strength (28 d) 0.6 N/mm²
    Air void content 0.02 – 300 µm
    Porosity 0.49 µm
    Working time ± 5 minutes
    Water absorption coefficient w24 0.7 – 0.9
    Shrinkage (28 days) <0.001%
    Compressive strength class Fine: 6.5 ± 0.5 N/mm² Coarse: 12.5 ± 0.5 N/mm²

    The stated values represent typical product characteristics and are not to be construed as binding product specifications.

    Field of application

    • For use indoors and outdoors
    • Can be applied in a single layer of any thickness
    • Restoring, supplementing and re-profiling mineral substrates such as natural stone, brick, concrete and synthetic stone
    • Reproduction of ornamental building elements


    • Made from natural stone
    • The (liquid) binder is a purely inorganic complex that is generated upon mixing with the powder substance
    • Low inherent stress
    • Good flank adhesion
    • Rapid hardening without shrinkage
    • Preparation
      • Substrate requirements

        The substrate must be clean, dry and capable of bearing a load. It must also be free of adhering parts, impurities and any substances that may prevent adhesion.

      • Preparations

        Iron residues, e.g. brackets, bolts or other anchors, must be removed from the surface being repaired.

        The depth of the damaged area must be increased to 1 cm below the surrounding stone surface. The area must also be roughened.

        Drill holes with a diameter ± 5 mm into the surface being repaired and insert anchor rods or wood screws made of stainless steel or brass.

        If the area to be repaired is very large or has overhanging parts, use a brass/stainless steel wire to bind the anchor points (never use steel or iron).

        Impregnating the substrate:

        Use a brush to apply the Lithos Arte® liquid to the surface being repaired. This treatment ensures that the substrate is etched.

    • Application
      • Application temperature: min. 5 °C max. 30 °C
      • Application requirements

        Temperature of the material, air and substrate: from min. +5°C to max. +30°C

      • Highly complex shapes and profiles are very easy to repair because the mortar sets very quickly. This means that thick layers can be applied without any delays, even overhead.

        Using a scraper or trowel, apply the mortar to the liquid-covered substrate up to a height of 1 to 2 mm above the profile being repaired.

        After 10-25 minutes (depending on the ambient temperature), the mortar has set sufficiently to allow the surface to be scraped with a scraper until it is flush with the desired profile.


        During the setting process (fully set: after 24 hours depending on the ambient temperature), the colour gets visibly darker. This is due to the polymerisation reaction. Therefore, once the material has set, the surface must be sanded in order to achieve the same surface texture and colour as the original natural stone.
        Once fully set, the surface can be hardened, cut or milled.

        A water-repellent treatment can be applied once the material is fully set.

        The colour of the dry Lithos Arte® can be changed slightly by mixing with Lithos Arte® powder, which is available in various colours.

    • Application instructions
      • Lithos Arte® must not be applied to frozen substrates.

        Because the mortar is not active for long, it is recommended to produce it in small quantities.

        Do not use any water to produce the mortar or add any to the mortar once it has started to set.

        The method and duration of post-treatment and surface treatment will have an impact on the final colour.

        The colour may vary slightly between batches.

        Do not use on gypsum-based substrates.

    • Working tools / cleaning
      • Brush, scraper, sanding board, stonemason's tools

      • Clean tools with water while the material is still fresh.

    • Storage / shelf life
      • Store dry, protect for moisture / close containers
      • Shelf-life 24 months
      • If stored in sealed, original containers in a cool, dry place, the product will keep for at least 24 months.

        Resistant to frost

    • Usage
      • Approx. 2.20 kg/dm³

      • Use a sufficiently large trial area to determine the precise application quantity.

    • General information
      • The characteristic data of the product were calculated under laboratory conditions at 20°C and 65% relative humidity.

        The colour obtained after drying and setting depends on the ambient conditions and the processing method used.

        Therefore, a wet, smooth surface may appear lighter than a dry smooth or rough surface.

        Different grain sizes of the same product may result in minor colour variations.

        Moisture from the substrate may lead to discolouration.

        Always set up a trial area/trial areas first.

    • Disposal instructions
      • Larger quantities of leftover product should be disposed of in the original containers in accordance with the applicable regulations. Completely empty, clean containers should be recycled. Do not dispose of together with household waste. Do not allow to enter the sewage system. Do not empty into drains.

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