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Johnstone’s Trade Aqua Water Based Undercoat Brilliant White 1L is a professional-quality basecoat formulated to provide a smooth, durable foundation for water-based gloss and satin finishes. Designed for modern decorating systems, it delivers excellent adhesion, strong opacity and quick drying performance with reduced odour.
The 1 litre size is ideal for smaller projects, detailed trim work and maintenance tasks where efficiency and finish quality are key.
Water-based trade undercoat
Colour: Brilliant White
Size: 1 Litre
Suitable for interior and exterior use
Quick drying formulation
Low odour and low VOC
Excellent adhesion and covering power
Compatible with Johnstone’s Trade Aqua topcoats
This undercoat is part of the Johnstone’s Trade Aqua system, offering a durable, low-odour alternative to traditional solvent-based products. It provides a stable, even base that enhances the performance and appearance of Aqua gloss and satin finishes.
Its fast drying properties help reduce downtime between coats, supporting faster project completion.
The high-opacity formula helps mask previous colours and promotes consistent topcoat build. It levels well to create a uniform surface, contributing to a professional decorative finish.
Recommended for use on:
Interior doors and frames
Skirting boards and architraves
Window frames
Interior and exterior timber
Properly primed metal surfaces
For bare wood or metal, apply an appropriate primer prior to undercoating.
Ensure surfaces are clean, dry and properly prepared before application. Stir thoroughly and apply evenly using a synthetic brush or suitable roller. Allow adequate drying time before applying the chosen Aqua finishing coat.
For decorators seeking a quick-drying, lower odour undercoat compatible with water-based finishing systems, this 1L pack delivers professional performance in a convenient size. It provides the essential foundation for achieving a durable, high-quality decorative result.
