Dulux Trade Weathershield Exterior Flexible Undercoat

SKU: 5180449
Dulux Trade Weathershield Exterior Flexible Undercoat Brilliant White Dark Grey
Dulux Trade Weathershield Undercoat - Brilliant White - 5L
Dulux Trade Weathershield Undercoat - Brilliant White - 2.5L
Dulux Trade Weathershield Undercoat - Brilliant White - 1L
Dulux Trade Weathershield Undercoat - Dark Grey - 5L
Dulux Trade Weathershield Undercoat - Dark Grey - 2.5L
Dulux Trade Weathershield Undercoat - Dark Grey - 1L

Dulux Trade Weathershield Exterior Flexible Undercoat

SKU: 5180449
Regular price £95.08
Tax included.

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Specially formulated to give longer lasting protection to exterior woodwork, Dulux Trade Weathershield Exterior Flexible Undercoat is part 2 of a 3 part weather-resistant and flexible paint system. Ideal for use on exterior woodwork, primed metal or plastic. Prime all bare wood with 1 coat of Dulux Trade Weathershield Preservative Primer, including any new or bare replacement beading. Prime any bare metal with 1 coat of Dulux Trade Metal Primer. Finish with Dulux Trade Weathershield Exterior High Gloss.

  • 8 year all weather protection
  • Coverage up to 16m2 per litre
  • Superb flexibility and adhesion

  • Area Exterior
    Recommended Use Exterior wood, primed metal and plastic
    Base Oil-Based
    Coverage Up to 16m2 per litre
    Drying Time Touch dry - 2-6 hours
    Re-Coat Time Brilliant White & Dark Grey - 6-8 Hours All other colours - 16-24 Hours
    Recommended Coats 2 Coats
    VOC Levels High


    To get the best results, ensure surfaces to be painted are sound, clean and dry. New surfaces particularly must be fully dry. Remove all loose and defective coatings, if necessary stripping back to bare wood. Pre-1960s paint surfaces over wood and metal may contain harmful lead, so special precautions must be taken. Remove and treat any mould, algae, lichen or moss with Weathershield Multi-Surface Fungicidal Wash. Remove defective glazing material, clean the rebates and any loose or open joints. Replace any rotten wood and knots with new timber.

    Thoroughly rub down all surfaces to remove any grey, weathered wood and surface sheen from remaining coatings, and then dust off (refer to your COSHH Assessment). Do not inhale dust. Wear a suitable face mask if dry sanding.

    Apply 1 or 2 coats of an appropriate knotting solution to any remaining knots in the wood. Prime all bare wood with 1 coat of Weathershield Preservative Primer+ (BP), including any new or bare replacement beading. Excess primer should be wiped off surrounding paintwork. Prime any bare metal with 1 coat of Dulux Trade Metal Primer.


    Note: Always follow the manufacturer's instructions found on the tin

    Stir thoroughly before use. Apply 2 coats of Weathershield Exterior Flexible Undercoat in the appropriate colour for the job to all primed wood, followed by 1 coat of Weathershield Exterior High Gloss.

    Where a special process colour is to be used, or where there is a.strong colour change, more coats will be needed. When painting resinous wood or woodwork with a history of blistering, it is best use only light colours, especially on south facing elevations. To get the most benefits from this system, use as directed on good quality timber that conforms to BS EN 942: 1996, in conjunction with good component design.

    Apply with a brush only. For health and safety reasons relating to solvent based paints, do not spray.

    Aftercare & Storage

    Store away from extremes of temperature and protect from frost. To prevent spillage, store and transport upright.


    All orders placed on a working day before 3pm will be dispatched on the same day for next working day delivery. Orders placed before 3pm on Friday will be delivered on Monday (excluding bank holidays). Orders placed on weekends and Bank Holidays will be dispatched on the next working day.

    Delivery Charges 



    Next Working Day




    Certain postcodes delivery times and charges may vary please see our list below of effected postcodes. Please contact us prior to ordering, alternatively please ensure your number is on your order and we will contact you to discuss the best delivery method and charges.

    AB37 - AB38

    IV40 - IV56

    PA42 - PA49

    AB44 - AB45



    AB53 - AB56

    IV9 - IV12

    PA61 - PA78

    CA18 - CA27

    KA27 - KA28

    PA80 - PA88

    HS1 - HS9

    KW (All postcodes)

    PH17 - PH26

    Isle of Man (All IM postcodes)

    LA15 - LA23

    PH30 - PH44

    IV14 - IV29


    PH49 - PH50

    IV30 - IV32

    PA21 - PA38

    TR21 - TR25



    GY1 - GY10

    ZE (All postcodes)

    GY1 - GY10

    JE1 - JE5

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    We offer a no quibble 14 day money back guarantee for all goods shipped correctly that are not required. If the item is not required, please send the item back for a full refund in its original condition, unused with its original packaging. 

    We keep the process simple

    • Contact us as soon as possible to inform us you will be returning the product.
    • Please include the original packing slip in the box, if this is unavailable please include a slip with your order number and name.
    • Package the goods well to ensure they arrive back undamaged, we recommend using the original packing it was sent in if this is still usable.
    • Return to our address:
    Unit 20 
    Adlington Business Park
    SK10 4NL

    Return postage will be at your own cost. We always advise you send parcels with a tracked service as we cannot be held responsible for any loses/damages in transit. We recommend using a courier site such as Parcel Monkey. Once goods are received they will be checked and processed within 3-5 days and you will receive a notification of refund.

    Please note any bespoke items or mixed to order can not be returned, if you are unsure this is your product please check the listing or contact us for details.
    We always recommend getting samples or contacting us for free of charge colourcharts. We do our best to represent colours as accurately as possible however screens variations and different surfaces can alter this. Unfortunately in the event you do not like the colour we are unable to accept the product back if they it has been opened.

    Damaged Paint

    Please visit our damages page where we can help resolve the issue for you. 

    Incorrect Item

    We will be happy to organise an exchange for the correct goods at no extra charge to yourself, please call us to organise this.

    Faulty Items

    If you find a fault with your product, we can offer a full refund or exchange within 30 days. We test every product that is returned to us, sadly if a product is found to have no fault we cannot refund this and the you will be given the option to have this returned to you. Please contact us to discuss these options. If you find fault after 30 days of purchase you may wish to contact the manufacturer directly as they will be able to offer support with the product.



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