The Importance of Basecoat

Base coats are required to prepare the surface of the substrate before applying the render, if not utilised, the completed appearance might have a 'ghosting' effect. The external wall insulation process has the need to use base coat materials. This is due to their unique function to secure and seal the insulating material layers allowing the substrate to prepare for rendering.

 

What Does Basecoat Mean?

A basecoat is the initial layer of paint or other coating substance that acts as the foundation for the application of the top or finishing coat. If a priming coat is necessary, it is applied before the basecoat

Pigments and fillers are generally used in the basecoat to hide small surface flaws and improve the colour and overall look of the coating above it.

Explaining Basecoat

Basecoats come in a variety of options, each designed for a specific purpose. A basecoat is used in a multi-stage coating system for one or more of the following reasons:

• The basecoat colour enhances the overall appearance of the paint by providing colour to the top or final layer. For example, a white basecoat makes a bright yellow topcoat much brighter and shinier.

• Wall painting requires a basecoat to hide tiny cracks, dents, or scratches and give a clear, smooth surface for the final or top coating in commercial and residential projects.

While single-stage coating is less expensive and faster, it lacks the durability, colour, gloss, film thickness, and other critical coating characteristics that a basecoat may give.

When is it the right time to apply a basecoat?

Due to its versatility, it can be applied at several different points throughout the installation process. When applying it as a reinforcement layer, you should apply it directly to the substrate. When using it as an adhesive to fix insulation boards to a substrate, you can apply it to the back of the insulation board before fixing it to the substrate.

Basecoat Products

Knauf AQUAPANEL Exterior Basecoat

Is a cement-based, synthetic resin-enhanced material which serves as a complete basecoat. The drying time is only 24 hours. It dries to a white colour with a smooth surface, ideal underneath light-coloured finishes.

EWI-220 EPS Basecoat Insulation Adhesive

It is a dual-purpose product, used to fix EPS insulation to substrates and also as part of the basecoat reinforcement layer. Once dry, the adhesive provides a strong, flexible and waterproof layer.

Key Facts

-Waterproof

-Frost-resistant

-High elasticity

-EPS adhesive and basecoat

-25kg dry mix

Knauf AQUAPANEL Basecoat Primer

A white pre-mixed water-based emulsion for priming base coated substrates which is used as a primer allowing it to reduce suction variations.

 

Key Facts 

-18 month shelf life

-One tub will cover approximately 100m²

-Weight (kg): 15

-High resistance to alkalis

-Dries to white

Buy Basecoats with us today at www.insulationbee.co.uk or speak to one of our friendly staff on 02038839057

InsulationBee LTD, Office 276b, 182-184 High Street North London E6 2JA