Keim Block Prime (Blockweiss Stain Blocker)

    3455
    KEI3455

    A white pigmented water-based stain blocker priming coat, and used to prime interior surfaces which have a staining/bleeding tendency.

    • Highly isolating, low-odour, aqueous
    • Isolates and blocks the bleeding of marks and stains from water, oil, tar, soot, smoke or coloured pen
    Colour
    Size

    £96.30 (incl. VAT)

    £80.25 (ex. VAT)

    Quantity
    Please choose your colour
    Available for Delivery (See Delivery Options Below)

    Description

    Keim Block Prime (Keim Blockweiss Stain Blocker) is a white pigmented water-based stain blocker priming coat, and used to prime interior surfaces which have a staining/bleeding tendency. Keim Blockweiss is preferably used to isolate and block the bleeding of marks and stains from water, oil, tar, soot, smoke or coloured pen. The substrate must be sound, dry and clean before application.



    Top Features & Benefits


    • Highly isolating.
    • Low-odour.
    • Aqueous.
    • Pigmented, very good hiding power.
    • Specific weight: approx. 1.30 g/cm³.
    • Solids content: approx. 55%.



    Preparation & Application


    Substrate Preparation and Application
    KEIM Blockweiss is applied to interior surfaces with problematic stains and bleedings. Application is ideally done on visually connected areas in order to achieve homogeneous results.

    A one-coat primer coat application may be sufficient. In case of intensive stains two up to three applications are recommended. A drying time of at least 12 hours between the coats is required.

    A drying time of 24 hours is necessary prior to subsequent coating with KEIM interior paints. The application is to be done in sections. Stir material well before application. Do not apply on distemper paints. Do not mix with other paints or tinting pastes. Dilution with water will impair the isolating properties.

    Application Conditions
    Ambient and substrate temperature above 5°C and below 30°C. Do not apply in direct sunlight or onto sun-heated surfaces.

    Consumption
    Approx. 15 lt/m² for one coat. The stated consumption values are for a smooth surface and given for guidance and depend on the nature of the substrate and the application method. Exact consumption values can only be determined by trials on the substrate. 

    Product Details
    3455-466902

    Data sheet

    Suitable For Use On
    Stained Walls
    Suitable For Use On
    Walls
    Suitable For Use On
    Oil-Stained Walls
    Suitable For Use On
    Water Stains
    Suitable For Use On
    Soot-Stained Walls
    Suitable For Use On
    Tar Stains
    Suitable For Use On
    Oil Stains
    Suitable For Use On
    Soot Stains
    Suitable For Use On
    Smoke Stains
    Suitable For Use On
    Tar-Stained Walls
    Suitable For Use On
    Water-Stained Walls
    Suitable For Use On
    Smoke-Stained Walls
    Suitable For Use On
    Pen Stains
    Product Usage Type
    Primer
    Colour Family
    White
    Product Focus
    Stain Blocking Paints
    Attachments
    Download


    Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.


    questions Dr Raja Bandak on 2023-11-01 22:00:00
    Question: 

    Can the stain blocking paint be used on a painted plaster wall? We have a chimney breast and I think that the tar in it from the past (it is now lined) is now coming through the brickwork. The chimney pots are able to stop rain going down.

    Answer from Rawlins’ Technical Team: 

    Assuming you have prepared the chimney breast in accordance with the technical datasheet, this product will be suitable for this application.

    It is suitable for painting onto a previously painted surface, as well as for use as a primer for difficult interior substrates with a tendancy to staining/bleeding, isolating watermarks, oil, tar, soot residues and smoke stains, and can also be overcoated if required with Keim Innostar.


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    IMPORTANT SHIPPING & DELIVERY INFORMATION

    Keim Block Prime (Blockweiss Stain Blocker) is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

    Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

    Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

    All delivery costs below are excluding VAT