Adhesives and Basecoats

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    25kg bag of EWI Pro EPS Basecoat (EWI-220), a dual-purpose adhesive and basecoat specifically formulated for EPS systems. Available at EWI Store, this vapour-permeable and hydrophobic solution guarantees excellent adhesion and system durability.
    SALE
    EPS Basecoat Adhesive (EWI-220) - 25kg
    Brand: EWI Pro
    -13%
    RRP £16.16 Incl. VAT
    £13.98 Incl. VAT
    EWI Pro Premium Basecoat (EWI-225) - 25kg
    Premium Basecoat (EWI-225) - 25kg
    Brand: EWI Pro
    £23.23 Incl. VAT
    EWI Pro Levelling Mortar (EWI-260) - 25kg
    SALE
    Levelling Mortar (EWI-260) - 25kg
    Brand: EWI Pro
    -21%
    RRP £13.80 Incl. VAT
    £10.79 Incl. VAT
    EWI Pro Lightweight Basecoat (EWI-269) - 25kg
    Lightweight Basecoat (EWI-269) - 25kg
    Brand: EWI Pro
    £14.39 Incl. VAT
    EWI Pro One Coat Dash Cover (OCDC) (EWI-065) - 25kg
    One Coat Dash Cover (OCDC) (EWI-065) - 25kg
    Brand: EWI Pro
    £18.79 Incl. VAT
    EWI Pro Aquabase (EWI-226) - 25kg
    Aquabase (EWI-226) - 25kg
    Brand: EWI Pro
    £27.50 Incl. VAT
    EWI Pro Performance Basecoat (EWI-222P) - 25kg
    Performance Basecoat (EWI-222P) - 25kg
    Brand: EWI Pro
    £17.99 Incl. VAT
    EWI Pro Lime Basecoat NHL 5 (EWI-748) - 21kg
    Lime Basecoat NHL 5 (EWI-748) - 21kg
    Brand: EWI Pro
    £26.39 Incl. VAT

    Our adhesives and base coat products are designed for professional construction projects, providing secure bonding, reliable strength and high-quality finishes in EWI and render systems. With a wide range of products to suit different materials, substrates and application methods, you can choose the best option for long-term performance on site.

    What are adhesives and base coats used for?

    In façade and insulation systems, adhesives are used to adhere insulation boards and other components securely to the surface, while the base coat forms a reinforced layer over the insulation. Together, they provide the structural bond and protective skin that protects the system and prepares it for decorative finishes.

    These types of products are an essential step in the overall process, helping to ensure a durable, smooth and crack-resistant façade that will last for many years.

    High-performance adhesives for secure bonding

    Our EWI and render adhesives are formulated for high performance, delivering ultimate strength and reliable adhesion on a range of common construction substrates, including brick, concrete, metal and wood. They are designed to hold insulation and render systems firmly in place, even under challenging conditions.

    Examples of adhesives for EWI and render systems

    • Cement-based adhesives – offer strong mechanical bonding and good resistance to moisture and weather, widely used in EWI construction.
    • Polyurethane and rubber-modified options – flexible glue-type formulations designed to cope with movement without becoming brittle.
    • Specialist adhesives for difficult materials or where access and application constraints apply.

    All are developed to deliver the right balance of power, flexibility and quality, so you can depend on them for demanding façade work.

    The role of a base coat in finishing systems

    The base coat is the intermediate layer that sits between the insulation and the decorative finish. It is usually applied with trowels or spray guns, then reinforced with mesh and smoothed to create an even surface ready for topcoat.

    This function is critical: the base layer connects the structural build-up to the finish, distributing stress, helping to absorb impact, and providing a stable, smooth background for paints or renders.

    Why using a proper basecoat ensures durability

    • Improves overall system strength and reduces the likelihood of cracking.
    • Protects the insulation boards from impact and environmental exposure.
    • Supports uniform curing of subsequent coats, improving final properties.
    • Contributes to long-term performance over many months and years.

    Using the correct basecoat, combined with the right primer and finishing system, is important for a robust façade build-up.

    Choosing the right product for your application

    Different applications and substrates require different options. The materials you’re working with, the level of exposure, and the installation method will all influence which adhesives or base coat you should select. Some products are more soft and flexible, while others are hard and rigid after curing – your choice should depend on the system design and movement expected.

    Spray guns, coverage, and shelf life tips

    • Spray guns & guns – many basecoats can be applied using machine or spray equipment for faster production on larger areas, allowing you to cover more surface in less time.
    • Coverage & filters – always check coverage rates, mix ratios and ensure pumping equipment and filters are clean for efficient application.
    • Shelf life – it’s essential to check the documented shelf life (typically given in months) and storage conditions. Using products beyond their stated life can affect strength and adhesion.
    • Manufacture & substances – follow manufacturer guidance on mixing, water ratios and compatibility with other system substances.

    Some higher-spec products may carry the highest price, but they often provide the best balance of workability, ultimate strength and long-term durability.

    Buy professional-grade adhesives and base coats

    On this page you’ll find a wide range of EWI adhesives and base coat options held in stock, ready for order. Each product includes technical information on application, curing times and recommended materials, helping you choose the most effective solution for your work.

    Simply add the items you need to your basket and complete your online order. Whether you’re tackling a small façade repair or a large EWI installation, we offer reliable, professional-grade solutions that will perform on site and stand the test of time.

    If you need help matching types of adhesives or basecoat to your specific system, our team is on hand to provide guidance so you can be confident that your choice will agree with the design and performance requirements of your project.