Dulux Trade Weathershield Exterior Undercoat Brilliant White 1L is a professional solvent-based undercoat designed to prepare exterior wood and suitably primed metal for finishing coats. As part of the Weathershield exterior system, it provides excellent adhesion, strong opacity and reliable build to ensure a smooth, uniform base prior to gloss or satin application. The 1 litre pack size is ideal for smaller exterior projects, detailed joinery, and maintenance work where a durable preparatory coating is required. Key Features Size: 1 Litre Colour: Brilliant White Finish: Undercoat Base Base Type: Solvent-Based System: Designed for use within the Weathershield Exterior System Opacity: High covering power Adhesion: Promotes optimal bonding of topcoats Durability: Supports extended exterior coating life Recommended Applications Suitable for exterior use on: Timber doors and frames Window frames and sills Fascias and soffits Exterior joinery and trim Properly primed metal surfaces Previously painted exterior woodwork Performance & Benefits Dulux Trade Weathershield Exterior Undercoat delivers a consistent, high-build base that improves the final finish of exterior gloss or satin topcoats. Its formulation enhances surface uniformity while helping ensure even colour development. When used as part of the complete Weathershield system, it contributes to long-term weather resistance and improved durability against rain, temperature changes and general exposure. Surface Preparation & Application Ensure surfaces are clean, dry and free from grease, dirt and loose material. Remove defective paint and sand to a sound surface. Treat any fungal growth with a suitable fungicidal solution. Prime bare wood or metal with an appropriate exterior primer before undercoating. Stir thoroughly before and during use. Apply evenly using a quality brush or roller suitable for solvent-based paints. Allow recommended drying time prior to applying the finishing coat. Technical Specification Product Name: Dulux Trade Weathershield Exterior Undercoat Colour: Brilliant White Finish: Undercoat Base Volume: 1L Base Type: Solvent-Based Application Method: Brush or Roller Suitable Surfaces: Exterior Wood & Primed Metal System Compatibility: Weathershield Exterior Gloss & Satin Use Classification: Exterior Preparatory Coating Pack Size: 1 × 1L Why Choose Dulux Trade Weathershield Exterior Undercoat Brilliant White 1L? For smaller exterior decorating tasks and detailed preparation work, Dulux Trade Weathershield Exterior Undercoat 1L provides the dependable base needed for a professional finish. Offering strong adhesion, excellent coverage and enhanced system durability, it supports long-lasting exterior protection and a consistent decorative result.
