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Muresko Nespri

Silanised pure acrylic facade paint based on SilaCryl®, specially designed for efficient facade coating using the Nespri spraying method.

    • LV Texte

    • Field of Application

    Facade paint for a wide variety of substrates. Can be used on intact external thermal insulation composite systems (ETICS), load-bearing emulsion paint coats, organically bound renders, mineral substrates, concrete, fibre cement, exposed brickwork, aerated concrete, cement-bonded chipboard and many more.

    Depending on the dilution, Muresko allows structure-preserving or structure-levelling coatings. Especially suitable for the renovation of load-bearing old aerated concrete coatings and on aerated concrete assembly components.

    Material Properties

    • Nespri = mist-free paint application for precise, fast and efficient work
    • Low coverage
    • Innovative, proven and particularly effective SilaCryl® binding agent
    • Highest colour shade diversity
    • Versatile application
    • Film protection against algae and fungal growth
    • Very good adhesion to most façade surfaces
    • Alkali-resistant, therefore unsaponifiable

    Material Base / Vehicle

    Silane-modified pure acrylate (silicone-modified) based on SilaCryl® binder

    Packaging/Package Size

    • Standard product: 25 l, 120 l 
    • ColorExpress: 12.5 l

    Colours

    White.

    Further colours are available via ColorExpress. Factory tinted available for orders of 100 litres or more in one colour and order. The material can be tinted with suitable CaparolColor full-tone and tinting colours or AmphiColor full-tone and tinting colours.

    Before processing, check the material for colour accuracy and quality. Complaints regarding deviations from the delivery specifications cannot be accepted after processing. Please refer to the VDPM's "Leitfaden zu Prüfpflichten bei Anlieferung von Tönware im Rahmen der Untersuchungs- und Rügepflicht (§ 377 HGB)" (‘Guidelines on inspection obligations for the delivery of coloured goods within the scope of the obligation to inspect and give notice of defects, § 377 of the German Commercial Code HGB)’.
    Only process material from the same batch on contiguous surfaces or mix material from different batches beforehand.
    For intense and poorly covering colours, we recommend a base coat in the appropriate Caparol primer system colour, or alternatively a pastel, white-based base coat comparable to the desired colour or a pigmented primer.
    An additional top coat may be necessary.

    Colour fastness according to BFS-leaflet No. 26:
    Class: A
    Group: 1-3, depending on shade

    Gloss Level

    Reflectometer value:
    Class G3 (matt) according to DIN EN 1062-1
    Measuring angle 85°, requirement ≤ 10

    Storage

    Store in a cool, frost-free place and avoid large temperature fluctuations. Protect from direct sunlight. Keep opened containers tightly closed.
    Can be stored for at least 24 months in the original sealed packaging.

    Density

    ρ ≈ 1.5 g/cm3

    Maximum grit size

    Class S1 (fine) according to DIN EN 1062-1
    S < 100 µm according to EN ISO 1524

    Dry film thickness

    Class E3 according to DIN EN 1062-1
    E = > 100 – ≤ 200 µm according to ISO 3233

    Water permeability (w-value)

    Class W3 (low) according to DIN EN 1062-1
    W ≤ 0.1 kg/(m2h1/2) according to DIN EN 1062-3

    Water vapour permeability (sd-value)

    Category V2 (medium) according to DIN EN 1062-1
    sd ≈ 0,5 m according to EN ISO 7783-2

    Supplementary Product

    OptiSilan TiefGrund, CapaSol RapidGrund, CapaSol Konzentrat, FungiGrund

    Note

    The data provided represents average values, which may vary slightly from delivery to delivery due to the use of natural raw materials. The information refers to white goods or standard goods. Deviations are possible due to colouring.

    Suitability according to Technical Information No. 606 Definition of Application Areas

    Interior 1Interior 2Interior 3Exterior 1Exterior  2
    –––++
    (–) inapplicable / (○) of limited suitability / (+) suitable

    Suitable Substrates

    • Mineral substrates, e.g. renders from CS II according to DIN EN 998-1 (compressive strength min. 1.5 N/mm2) or from PII according to DIN 18550, concrete, exposed masonry, fibre cement, cement-bonded wood fibre boards
    • Pasty (organic) renders and coatings based on dispersion, silicone resin and dispersion silicate
    • Can be used in ETICS and VHF, in solid construction and renovation

    The substrate must be solid, load-bearing, free of contamination, separating substances and dry. Observe VOB, Part C, DIN 18363, Section 3. To achieve colour-uniform coatings, ensure that the substrate has uniform absorbency.
    The substrate must be checked in accordance with information sheets no. 20 and 20.1 issued by the German Federal Committee for Paint and Material Protection (Bundesausschuss Farbe und Sachwertschutz e.V.).
    The cause of cracks in substrates must be identified and cracks repaired appropriately depending on the type and extent of the cracks.
    Please refer to Caparol Technical Information No. 650 "Untergründe und deren Vorbehandlung" (‘Substrates and their pre-treatment’).

    Substrate Preparation

    The following information is provided as examples and is not exhaustive. The coating is applied after any necessary substrate preparation.

    Protective measures:
    Carefully cover glass, ceramics, clinker, natural stone, lacquered, glazed, anodised and other surfaces to be protected. Remove splashes immediately with water.

    Cleaning the substrates:
    Clean dirty areas and remove any loose layers using a suitable method. Observe legal requirements. Allow sufficient drying time after treatment with water.
    Possible methods (not exhaustive):
    - Dry cleaning: sweeping, brushing.
    - Pressure washing: max. temperature 60°C, max. pressure 60 bar.
    - Mechanical cleaning: pickling, grinding, scraping, local dismantling, etc.

    The waiting time before new renders can be reworked depends, among other things, on weather conditions and the layer thickness. It is longer at low temperatures and high humidity. The information is based on 20 °C and 65 % relative humidity and is provided for guidance only.

    New mineral renders:

    • Guideline: at least 1 day per mm of total layer thickness of base and top coat, but at least 14 days. Longer waiting times reduce the risk of lime efflorescence.
    • A coats with CapaGrund Universal reduces the risk of lime efflorescence in mineral top coats, meaning that the top coat can be applied after a minimum of 7 days. Alternatively, mineral renders can be coated with Sylitol Finish 130(-W).
    • Specially tinted colours may require additional measures (e.g. longer standing times for the render substrate, priming with CapaGrund Universal (-W), weather protection).

    New paste-like renders:
    Repaint after complete drying, at the earliest after 2-3 days.
    If necessary, apply a base coat with CapaGrund Universal.

    Old mineral renders, concrete, mineral coatings:
    Slightly absorbent, smooth: Prime coat with CapaGrund Universal.
    Coarse, porous, absorbent, slightly sandy: Prime coat with OptiSilan TiefGrund or CapaSol RapidGrund.
    Heavily sandy, chalky: Prime coat with OptiSilan Tiefgrund or Dupa-Putzfestiger.

    Old, pasty, matt coatings:
    Moderately absorbent: CapaGrund Universal diluted with max. 3% water.
    Highly absorbent, chalky, sandy: Base coat with OptiSilan TiefGrund or Dupa Putzfestiger.
    If necessary, apply an intermediate coat with CapaGrund Universal.

    Shiny and water-repellent (hydrophobic) surfaces:
    Roughen mechanically if necessary. Apply a base coat of CapaGrund Universal.
    If water still beads after mechanical roughening, we recommend applying a base coat of Dupa-HaftGrund.

    Render/concrete with sintered layer, render repairs:
    Coat with Histolith Fluat and rinse.
    Repaired render must be well bonded and dry.

    Concrete with requirements according to DIN EN 1504-3:
    Please refer to the Disbon product range.

    Cracked render or concrete surfaces:
    Identify the cause of cracks in substrates and repair cracks appropriately depending on the type and extent of the crack. Depending on the crack class, coat with FibroSil, PermaSilan or the Cap-elast system.

    Areas affected by fungus or algae:
    Clean areas affected by fungus or algae using wet blasting in accordance with legal regulations. Once dry, pre-treat with Capatox in accordance with the manufacturer's instructions. Prime absorbent substrates with FungiGrund.

    Salt efflorescence, moisture:
    Mineral salts cause premature destruction of coatings. Brush off efflorescence until dry. When coating surfaces with salt efflorescence and (rising) moisture, no guarantee can be given for the permanent adhesion of the coating or the prevention of salt efflorescence.
    Please refer to the Histolith product range.

    Aerated concrete with load-bearing old coating:
    A base coat with CapaGrund Universal is recommended. For aerated concrete coatings that are not intact, follow the Caparol Building Protection Programme.

    Exposed brickwork:
    Only frost-resistant facing bricks or clinker bricks without foreign inclusions are suitable for coatings. The masonry must be free of cracks, dry and salt-free.
    Apply a base coat of Dupa-Putzfestiger. If brown discolouration appears in the intermediate coat, continue with the water-free Duparol Fassadenfarbe.

    Fibre cement panels:
    Clean if necessary, remove less resistant layers in accordance with legal requirements. For coatings on fibre cement panels, observe BFS data sheet no. 14. Uncoated, non-load-bearing panels containing asbestos must no longer be treated with paint in accordance with the Hazardous Substances Ordinance (GefStoffV). For asbestos fibre-containing panels with existing load-bearing old coatings, also observe TRGS 519.

    Cement-bonded wood chip boards:
    Prime with Disbon 481 EP-Uniprimer to prevent lime efflorescence.

    Method of Application


    To avoid lapping, coat wet-on-wet in one go.

    Spray mist-free application with Nespri devices
    Stir the material well.

    • 20° double nozzle 215 (for trimming work)
    • 30° double nozzle 317 (for smooth substrates)
    • 30° double nozzle 319 (for rough substrates)
    Lightly roll over the wet coating with a roller.

    The material temperature is regulated automatically. The spray pressure (spray gun open) on the NespriPRO basic unit is in the green range of the pressure gauge. With the NespriKIT hose reel, this must be set on the respective airless device on your own responsibility.

    Other coating materials, especially primers, can also be applied with the Nespri device. However, mist-free application cannot be guaranteed with these products. These products must be applied with the appropriate precautions.

    Surface Coating System

    Primer coat: If necessary, apply primer coat(s) as part of substrate preparation.

    Intermediate and final coating Nespri:
    Apply undiluted using the special Nespri equipment.

    Consumption

    • Approx. 200 ml/m2 per coat on smooth surfaces.
      Use more on rough surfaces. Determine exact consumption by applying a test coat.

    To achieve the best possible protection against algae and fungal growth, it is necessary to apply two coats with a total of at least 400 ml/m2. The average layer thickness should be at least 200 µm. Each additional coat with a consumption of at least 200 ml/m2 increases the layer thickness by approx. 100 µm.

    Application Conditions

    During the application and in the drying phase, the ambient and substrate temperatures must not be below +5 °C and above +30 °C.
    Do not apply in direct sunlight, strong wind, fog or high humidity. Please refer to the leaflet "Verputzen, Wärmedämmen, Spachteln, Beschichten bei hohen und tiefen Temperaturen" (Rendering, Thermal Insulation, Filling, Coating at High and Low Temperatures) from the Bundesverband Ausbau und Fassade (Federal Association for Finishing and Façades).
    In unfavourable weather conditions, take suitable measures to protect the facade surfaces being treated.

    Drying/Drying Time

    Base- or intermediate coats must be dry and render must be sufficiently set before further processing.

    The waiting time before recoating depends, among other things, on weather conditions and the thickness of the coat. It is longer at low temperatures and high humidity.
    The information is based on 20 °C and 65 % relative humidity and is intended as a guide.

    • Surface dry after approx. 3 hours
    • Can be painted over after approx. 12 hours
    • Completely dry and resistant to stress after approx. 3 days

    Tool Cleaning

    Rinse with water immediately after use in accordance with legal regulations.

    Note

    Facade surfaces that are exposed to higher than normal moisture levels due to special conditions or natural weathering are at increased risk of mould and algae growth. Permanent prevention of mould and algae growth cannot be guaranteed. The deposit of active substances against microbiological attack in coatings provides long-lasting but temporary protection.

    For light reflectance values (HBW) below 20, the render in ETICS must be coated with a solar-reflective facade paint with a TSR value ≥ 25 (CoolProtect) in at least two coats after thorough drying, depending on requirements.
    On rendered, solid, highly thermally insulated wall structures, special measures must be taken for LRV < 30, e.g. an additional reinforced base coat with full-surface fabric insert on the lightweight render, and for LRV < 20, an additional solar-reflective facade paint with TSR ≥ 25.
    On intact aerated concrete coatings, the HBW should not fall below 20% with a TSR value of ≥ 30.
    Please note the limits of feasibility in the respective system structure.

    With dark colours, mechanical stress on the surface can lead to light streaks (writing effect). This is a product-specific property of all matt to silk matt facade paints and does not affect the product quality or functionality.

    On dense, cool substrates or if drying is delayed due to weather conditions, moisture (rain, dew, fog) can cause additives to form yellowish/transparent, slightly shiny and sticky flow marks on the surface of the coating (emulsifier streaks). These auxiliary substances are water-soluble and are removed automatically with sufficient water, e.g. after several heavy rainfall. This does not adversely affect the quality of the dried coating. If direct reworking is nevertheless necessary, the flow marks/auxiliary materials must be pre-wetted and washed off completely after a short exposure time. An additional primer coat with CapaGrund Universal is recommended.

    Repairs / variations on the surface may be more or less visible, even when using the original coating material. According to BFS data sheet 25, variations are unavoidable. Whether a variation is considered visually disturbing depends on many factors such as colour tone, gloss level, layer thickness, substrate, lighting, etc.

    Protect horizontal surfaces constructively (e.g. by sheet metal cladding).

    Special Risks (Hazard Note) / Safety Advice (Status as at Date of Publication)

    May cause an allergic skin reaction. Harmful to aquatic life with long lasting effects. Avoid breathing mist or vapors. Avoid release to the environment. Wear protective gloves. If skin irritation or rash occurs: Get medical advice/ attention. Take off contaminated clothing and wash it before reuse. Dispose of contents/ container to an approved waste disposal plant. Contains: 1,2-benzisothiazol3(2H)-one, 2-methylisothiazol-3(2H)-one, octhilinone (ISO), reaction mass of 5-chloro-2-methyl-2Hisothiazol-3-one and 2-methyl-2H-isothiazol-3-one (3:1). Warning! Hazardous respirable droplets may be formed when sprayed. Do not breathe spray or mist. For professional/industrial applications. Treated article, contains a biocidal product. Film preservative: terbutryn, OIT. In-can preservative: BIT, MIT, CIT/MIT (3:1).
    Disposal: Materials and all related packaging must be disposed of in a safe way in accordance with the full requirements of the local, regional, national and international authorities. Washing water must not be discharged into the sewage system or the environment.
    GISCODE: BSW50.
    EU limit value for the VOC content of this product (category A/c): 40 g/l (2010). This product contains max. 20 g/l VOC.
    Declaration of ingredients according to VdL directive 01 (Germany): polyacrylic resin, polysiloxane, silicates, titanium dioxide, calcium carbonate, water, glycol ethers, glycols, additives, Preservative, film preservatives.

    Technical Assistance

    This document cannot cover all substrates encountered in practice and their technical treatment. If substrates are to be treated that are not listed in this technical information, it is necessary to consult us or our sales representatives. We will be happy to provide you with detailed and project-specific advice.

    Customer Service Centre

    Tel.: +49 6154 71-71710
    Fax: +49 6154 71-71711
    e-mail: kundenservicecenter@caparol.de

    International Distribution: Please see www.caparol.com

    Das gibt's nur bei Nespri:

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