Capalac Aqua Metallschutz

Emulsion based anti-corrosive enamel for priming, intermediate and top coats, outdoors & indoors.
Corrosion protection for steel and galvanised steel
as per DIN EN ISO 12944-6.

  • LV Texte
  • Field of Application

    Priming, intermediate & finishing coat (one pot enamel system) for protection and design of exterior & interior parts of building made of iron, steel, zinc, galvanised steel, aluminium and copper.
    Corrosion protection for iron and steel.
    Inapplicable on anodized aluminium and roofings.

    Material Properties

    • Excellent adhesion.
    • High opacity on surfaces and edges.
    • Durable protection due to high weather resistance.
    • One enamel for priming, intermediate and top coat (one pot system).
    • Test report for corrosivity categories to C 4 M on steel and C 4 H on galvanised steel as per DIN EN ISO 12944 Part 6.
    • Tintable in numerous colours via ColorExpress.
    • Suitability for DGNB criterion ENV 1.2 (2012): QS1, QS2; QS3; QS4.

    Material Base / Vehicle

    Synthetic resin dispersion/emulsion.

    Packaging/Package Size

    • White (Weiss)750 ml; 2.5 l; 10 l;
    • ColorExpress:  700 ml; 2.4 l; 9.6 l;


    • Standard:
    • ColorExpress:
      Can be tinted in numerous colour shades via the ColorExpress stations. 

      Colour Resistance according to German BFS-Merkblatt (Data Sheet) No. 26:
      Binder: Class A
      Pigmentation: Group 1 to 3, depending on the colour.

    Gloss Level

    Silk-matt/semi-gloss (mid sheen; velvet or eggshell-like finish)


    Keep in a cool place.
    Keep cans tightly closed.


    Approx. 1.3 g/cm3

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

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

    Suitable Substrates

    Iron, steel, zinc (galvanised steel), aluminium, copper, stable existing paint coatings.
    The substrate must be clean, sound/stable, dry and free from all substances that may prevent good adhesion. 
    Do not use for the coating of roofings and anodized aluminium!
    Existing coatings may require a trial coating and check for proper adhesion. This applies in particular for powder and coil coatings.

    Substrate Preparation

    Iron, Steel:
    Derust to industry standard SA 2½ (blasting) according to DIN EN ISO 12944-4.
    A thorough removal of rust to the degree of purity ST 3 by mechanical means or by hand may be sufficient, if corrosive loads are low (e.g. indoors without any formation of water condensation and other aggressive influences).

    Zinc, Galvanized Steel:
    Roughen and clean with non-woven web and Multistar, 1 : 5 diluted with tap (potable) water, otherwise use light ammonia solution or prepare via sweeping technique as per German BFS-Merkblatt (Data Sheet) No. 5.


    Roughen/clean with non-woven web and Multistar, 1 : 5 diluted with tap (potable) water. Germany: Follow BFS Data Sheet No. 6.

    Roughen/clean with non-woven web and Multistar, 1 : 5 diluted with tap (potable) water.

    Existing Paint Coatings:

    Roughen the surface and/or treat with alkali. Carefully remove all unstable coatings.

    Method of Application

    Guidelines for Spray Application:

    EquipmentØ Nozzle Spray AnglePressureDilution
    Airless0.012 - 0.014 inch40 - 60 °200 - 220 barundiluted
    /Wagner XVLP
    FinishControl 5000 
    Caparol NAST-Frontend
    (Colour: blue)
    -full air quantity10 % with tap water
    Prefer spray application for corrosion protection conforming to standards. Check the thickness of the wet film with suitable gauge to achieve/ensure the necessary dry film thickness. 
    On large, seamless areas a "clouding" effect may occur with spray coating and is sometimes unavoidable, due to sectioning surfaces in several operation segments.

    Surface Coating System

    SubstrateUseSubstrate PreparationPriming CoatIntermediate CoatFinishing (Top) Coat
    Iron, steelinterior/exteriorderust/degreaseCapalac Aqua Metallschutzif necessary:
    Capalac Aqua
    Capalac Aqua
    Zinc (galvanised steel)interior/exteriorBFS No. 5
    Aluminiuminterior/exteriorBFS No. 6
    Copperinterior/exteriorMultistar/abrasive pad
    Stable existing paint coatings1)interior/exteriorroughening/alkali treatmentPrepare and prime defective areas depending on substrate requirements
    Note: Adhesion must be tested in advance for powder coatings, coil coatings and other critical/problematic substrates by trial coatings on site.

    Capalac Aqua Metallschutz can be applied by enamel brush, roller or spraying equipment. Stir thoroughly before use. Spray application should be used to achieve the necessary wet and dry film thickness and protection against corrosion conforming to standards (see following tables/corrosivity categories.

    Adhesive Tapes to Limit the Coating: 
    Remove all adhesive tapes before the coating (film surface) is dry. Otherwise the coating will be raised in border areas, due to the high dry film thickness. Use waterproof adhesive tapes. 
    Protection against Corrosion on Steel with Capalac Aqua Metallschutz:
    Surface coating systems for corrosivity categories to C2 H, C3 H, C4 M following DIN EN ISO 12944-5.
    Surface preparation: Blasting to degree of surface purity SA 2 1/2 (DIN EN ISO 12944-4).
    Method of application: Spraying (airless).
    No.Priming Coatµm1)Intermediate Coatµm1)Finishing (Top) Coatµm1)total
    Corrosivity Categories
    C22)C32)C4 4)
    1 3)Capalac Aqua Metallschutz80--Capalac Aqua Metallschutz80160+++++----
    2 3)Capalac Aqua Metallschutz80Capalac Aqua Metallschutz80Capalac Aqua Metallschutz80240++++++++-
    1)Set value of coating (dry film thickness)
    2)Explanations related to corrosivity categories see below.
    3)With verification of suitability (test report) as per DIN EN ISO 12944 Part 6 for System No. 1 and 2
    4)Use for corrosivity categorie C4 High Capalac Dickschichtlack

    Protection against Corrosion on Galvanised Stee with Capacryl Metallschutz (Duplex System):
    Surface coating systems for corrosivity categories C2 H, C3 H, C4 H following DIN EN ISO 12944-5.
    Surface preparation: Sweeping technique (DIN EN ISO 12944-4).
    Method of application: Spraying (airless).

    No.Priming Coatµm1)Intermediate Coatµm1)Finishing (Top) Coatµm1)total 
    Corrosivity Categories
    1 3)Capalac Aqua Metallschutz80--Capalac Aqua Metallschutz80160+++++++++
    1)Set value of coating (dry film thickness)
    2)Explanations related to corrosivity categories see below.
    3)With verification of suitability (test report) as per DIN EN ISO 12944 Teil 6 for System No. 1

    Corrosivity categories (see DIN EN ISO 12944 Part 2)
    Examples for typical ambient conditions or loads in temperature zones.
    C2 lowAtmospheres with a low pollution.
    Mostly rural climate.
    Unheated buildings, facilitating condensation,
    e.g. store-rooms, sports halls.
    C3 modestUrban and industrial climate, modest pollution caused by sulphur dioxide. Coastal regions with low contamination/stress due to salt-water.Production facilities with high moisture and some air pollution, e.g. facilities for food production, laundries, breweries, creameries.
    C4 strongIndustrial areas and coastal regions with a modest contamination/stress due to salt-water.Chemical installations, swimming pools, boathouses above sea.

    Durability of Protection
    (See DIN EN ISO 12944 Parts 1 and 5)
    Anticipated period of a coating system (durability) before the first maintenance is required. The given time intervals are experiences that may be helpful for building owners to state a repair schedule under economic considerations.
    Durability is no warranty period!
    Time IntervalDurability (Years)
    Low (L)2 - 5
    Middle (M)5 - 15
    High (H)over 15


    Consumption/Coating Thickness:
    Application MethodConsumption/m2Average
    Wet Film Thickness
    Dry Film Thickness
    Spray applicationapprox.
    200 - 250 ml
    approx. 220 mlapprox. 200 µmapprox. 80 µm
    Consumption is only a guide value and may vary, depending on substrate requirements. Determine the exact amount of material required by coating a test area on site.

    Application Conditions

    Low Temperature Limit for Application and Drying:
    8 °C for product, ambient air and substrate.

    Drying/Drying Time

    At 20 °C and 65 %
    relative humidity (RH)
    dust drydry to touchrecoatablecured
    after hours4824Approx. 10 days per
    100 µm of dry film thickness

    Lower temperatures and higher humidity extend the drying times.

    Tool Cleaning

    Immediately after use with clean water.

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

    Toxic to aquatic life with long lasting effects. Keep out of reach of children. Avoid release to the environment. Ensure good ventilation during use and drying. Do not eat, drink or smoke while using the product. In case of contact with eyes or skin, immediately and thoroughly rinse with water. Do not allow product to enter drains, waterways or soil. Clean utensils immediately after use with soap and water. Use P2 dust filter for grinding. Do not breathe spray dust. Use A2/P2 combination filter for paint spraying.
    Contains 1,2-benzisothiazol-3(2H)-one, 2-methyl-2H-isothiazol-3-one. May produce an allergic reaction.
    In Germany: Advice for allergy sufferers with isothiazolinone allergy: Hotline 0180/5308928
    (0.14 €/minute from German landline, MTS max. 0.42 €/minute).


    Materials and all related packaging must be disposed of in a safe way in accordance with the full requirements of the local authorities. Particular attention should be made to removing wastage from site in compliance with standard construction site procedures.
    In Germany: Only completely empty containers should be handed in for recycling. Dispose containers with residues of liquid product via waste collection point accepting old paints and enamels. Dispose dried/hardened product residues as construction site/demolition/municipal or domestic waste.

    EU limit value for the VOC content

    of this product (category A/i): 140 g/l (2010). This product contains max. 140 g/l VOC.


    M-LW01 (Germany)

    Substances of Content - Declaration

    Polyacrylate resin, titanium dioxide, calcium carbonate, zinc phosphate, mineral fillers, water, ester alcohol, glycol ether, additives, preservative (Benzisothiazolinone, Methylisothiazolinone).

    Customer Service Centre

    Tel.: +49 6154 71-71710
    Fax: +49 6154 71-71711

    International Distribution: Please see

    Das gibt's nur beim Capalac Aqua Metallschutz:

    • Wasserverdünnbar
    • Starker KorrosionsschutzKategorie C4 nach DIN EN 12944
    • 1-Topf-SystemGrund-, Zwischen- und Schlussbeschichtung aus einem Topf

    Product recommendation:

    Capalac Dickschichtlack

    Capalac Aqua Multiprimer

    Capalac BaseTop Venti

    Capacryl PU-Satin

    Capalac AllGrund