Sherwin-Williams Kem-Kromik 671

    671
    SHE2094

    Ken-Kromik 671 (formerly known as Sherwin-Williams M671 and as Leighs M671) is a high quality undercoat/tiecoat developed for marine use on above waterline areas but also suitable for normal interior and exterior use. It is a single component, conventional quick drying undercoat/tiecoat. Ken-Kromik 671 may also be used as a wood primer for interior or exterior use, please refer to Additional Notes below.

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    • 250 char. max
    Colour Group
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    £77.13(ex. VAT)
    £92.56 (inc. VAT)
    Quantity
    Please choose your colour
    Available for Delivery (See Delivery Options Below)

    Description

    Ken-Kromik 671 (formerly known as Sherwin-Williams M671 and as Leighs M671) is a high quality undercoat/tiecoat developed for marine use on above waterline areas but also suitable for normal interior and exterior use. It is a single component, conventional quick drying undercoat/tiecoat.

    Recommended Primers/Topcoats


    Ken-Kromik 671 can be overcoated with a wide range of white spirit based finishes

    Endorsements


    • BS476 Part 7 - Surface Spread of Flame Material - for details of substrate/scheme, consult Sherwin-Williams.

    Surface Preparation


    Ensure surfaces to be coated are dry and free from all visible traces of surface contaminants.

    Application Equipment


    Suitable for applying by brush and roller. Application of more than one coat may be necessary to give equivalent dry film thickness to a single spray applied coat.

    Airless Spray

    • Nozzle Size: 0.38-0.46mm (15-18 thou)
    • Fan Angle: 80°
    • Operating Pressure: 140kg/cm² (2000 psi)

    The airless spray details given above are intended as a guide only. Details such as fluid hose length and diameter, paint temperature and job shape and size all have an effect on the spray tip and operating pressure chosen. However, the operating pressure should be the lowest possible consistent with satisfactory atomisation. As conditions will vary from job to job, it is the applicators’ responsibility to ensure that the equipment in use has been set up to give the best results. If in doubt our technical team should be consulted

    Conventional Spray

    • Nozzle Size: 1.27mm (50 thou)
    • Atomising Pressure: 3.5kg/cm² (50 psi)
    • Fluid Pressure: 0.7kg/cm² (10 psi)

    The details of atomising pressure, fluid pressure and nozzle size are given as a guide. It may be found that slight variations of pressure will provide optimum atomisation in some circumstances according to the set up in use. Atomising air pressure depends on the air cap in use and the fl uid pressure depends on the length of line and direction of feed i.e. horizontal or vertical.

    For application by conventional spray, thin up to 5%. Wet film thickness should be adjusted accordingly. NB - Thinning will affect VOC compliance.

    Application Conditions & Overcoating


    In conditions of high relative humidity, ie 80-85% good ventilation conditions are essential. Substrate temperature shall be at least 3°C above the dew point and always above 0°C.

    At application temperatures below 10°C, drying and curing times will be significantly extended, and spraying characteristics may be impaired.

    Application at ambient air temperatures below 5°C is not recommended.

    The maximum air and substrate temperature for application is 50oC providing conditions allow satisfactory application and film formation. If the air and substrate temperatures exceed 50oC and coatings are applied under these conditions, paint film defects such as dry spray, bubbling and pinholing etc, can occur within the coating. If for any reason it is desired to apply at a higher temperature, please seek advice of our Technical Team.

    Additional Notes


    Any skin that may form on the surface of the paint in the container should be removed carefully to avoid the necessity of sieving the paint.

    When used as a primer onto bare wood, the product should be thinned 10% to improve surface wetting and penetration.

    Numerical values quoted for physical data may vary slightly from batch to batch. 

    Typical Thickness and Coverage


    Dry film thickness

    35 microns

    Wet film thickness

    67 microns

    Theoretical coverage

    14.9 m² /ltr*

    *This figure makes no allowance for surface profile, uneven application, overspray or losses in containers and equipment. Film thickness will vary depending on actual use and specification.

    Practical Application Rates


    Microns per coat

    Airless SprayConventional SprayerBrushRoller
    Dry55*503535
    Wet1051016767

    * Maximum sag tolerance typically 163μm wet (85μm dry )by airless spray. The conventional spray details relate to the paint after 5% thinning

    Average Drying Times


    15°C23°C
    To touch:2½ hours1½ hours
    To recoat:7 hours4 hour
    To handle:24 hours16 hours

    These figures are given as a guide only. Factors such as air movement and humidity must also be considered.

    Product Details
    2094-918830

    Data sheet

    Manufacturer
    Sherwin-Williams
    For Use By
    Industrial Use
    Interior / Exterior Use
    Interior & Exterior
    For Use On
    Metal, Wood
    Application Method
    Airless Spray, Spray, Brush, Roller
    Sheen
    Matt
    Colour
    Standard / Ready Mixed
    Single, Two or Three Pack
    Single
    Pack Size
    5L
    Coverage
    14.9m² per litre
    Touch Dry
    1.5 hours
    UN Number
    UN1263
    Base Type
    Alkyd
    Suitable For Use On
    Metal
    Suitable For Use On
    Wood
    Finish
    Matt
    Application Method
    Spray
    Application Method
    Roller
    Application Method
    Brush
    Product Usage Type
    Tie Coat
    Product Range
    Kem-Kromik
    Colour Family
    Green
    Colour Family
    Black
    Colour Family
    Red
    Colour Family
    White
    Colour Family
    Pink
    Colour Family
    Cream
    Colour Family
    Violet
    Colour Family
    Purple
    Colour Family
    Grey
    Colour Family
    Off-White
    Colour Family
    Blue
    Colour Family
    Magnolia
    Colour Family
    Brown
    Colour Family
    Anthracite Grey
    Colour Family
    Neutral
    Colour Family
    Orange
    Colour Family
    Beige
    Colour Family
    Yellow
    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 Gary Coombes on 2023-01-25 15:35:59
    Question: 

    Would like to find out about M671 Undercoat about recoating times. What’s the longest I could leave it before recoating again

    Answer from Rawlins’ Technical Team: 

    With it being only a single pack alkyd undercoat that is matt or sheen in appearance then providing the surface is free of all contaminants it is indefinetly overcoatable.


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    IMPORTANT SHIPPING & DELIVERY INFORMATION

    Sherwin-Williams Kem-Kromik 671 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