Runa Grigio Scuro

Product overview

Strong at sight,
gentle at touch

Runa collection brings the essence of the noble and sophisticated character of the slates found in the countryside, villages and historical cities of Northern Europe. Stones that blend harmoniously with the elements of nature in a very contemporary style.

Nexion worked to recreate the taste of those suggestive slates that blend naturally in the architectural works of contemporary urban contexts. By the perfection of design and the hands of skilled craftsmen, Nexion has given to the surface of Runa the character of the best natural stones, strong at sight and gentle at touch.

Runa is a ceramic collection that returns the sober and harmonious elegance of slates with a modern and dynamic mood.

    Surfaces


    We offer the broadest range of surfaces.
    Naturale
    Lappato
    in cresta
    Bocciardato
    Matte Silk
    • Lappato
      in cresta
    • Bocciardato

    Sizes


    120x240cm
    30x60cm
    60x120cm
    60x60cm
    80x160cm

    Thickness


    9 mm

    Specifications


    DIMENSIONS AND SURFACE QUALITY
    Technical feature Standard method ISO Nexion values Requirements
    SIZE < 1200 mm SIZE ≥ 1200 mm
    % mm % mm
    Width ISO 10545 - 2 ± 0,1 ± 0,8 ± 0,1 ± 1 ± 0,3%
    Length ± 0,1 ± 0,8 ± 0,1 ± 1,2 ± 0,3%
    Thickness ± 4 ± 0,5 ± 4 ± 0,5 ± 5,0%
    Straightness of Side ± 0,1 ± 0,8 ± 0,1 ± 1 ± 0,3%
    Rectangularity ± 0,1 ± 1,3 ± 0,1 ± 1,5 ± 0,3%
    Surface Flatness ± 0,1 ± 1,8 ± 0,2 ± 3 ± 0,4%
    Surface Quality 95% A minimum of 95% of the tiles are to
    be free from visible defects which can
    impair the appearance of a major area
    of tiles
    PHYSICAL PROPERTIES
    Technical feature Standard method ISO Nexion values Requirements
    Water Absorption ISO 10545 - 3 Avg. ≤ 0,08%,
    Individual 0,2%
    ≤ 0,5%,
    Individual 0,6%
    Modulus of Rupture ISO 10545 - 4 Min. 42 N/mm² Min. 35 N/mm²,
    Individual Min. 32 N/mm²
    Breaking Strength ISO 10545 - 4 Min. 1800 N Not less than 1300 N
    Moisture Expansion ISO 10545 - 10 0,02 mm/m -
    Surface abrasion ISO 10545-7 CLASS III Minimum Class - II Report abrasion class and cycles passed
    Mohs Hardness of surface NA 4
    Coefficient of linear thermal
    expansion from ambient
    temperature to 100 °C
    ISO 10545 - 8 6x10⁻ ⁶ K⁻¹ max As declared by the Manufacturer
    Thermal Shock Resistance ISO 10545 - 9 No damage
    Crazing Resistance:
    glazed tiles
    ISO 10545 - 11 No damage for
    Min. 10 Cycles
    Required
    Bulk Density ISO 10545 - 3 2,2 g/cc 2,2 g/cc
    Impact Resistance ISO 10545 - 5 0,55 As declared by the Manufacturer
    Frost Resistance ISO 10545 - 12 No change
    Small colour differences ISO 10545 - 16 No change Plain coloured tiles only where required
    GL: ∆E < 0,75
    UGL: ∆E < 1,0
    CHEMICAL PROPERTIES
    Technical feature Standard method ISO Nexion values Requirements
    Resistance to staining ISO 10545 - 14 Class 4 Minimum Class 3
    Resistance to household
    chemicals and swimming pool
    salts
    ISO 10545 - 13 Minimum A Minimum B
    Resistance to acids & alkalis Minimum B As declared by the Manufacturer

    Contact us for
    more informations