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Dulux Trade Weathershield Exterior Undercoat Brilliant White 5L is a high-performance solvent-based undercoat formulated to prepare exterior wood and metal surfaces for topcoating. Designed for use as part of the Weathershield exterior system, it provides excellent adhesion, opacity and build, ensuring a smooth, uniform base for finishing coats.
The 5 litre pack size is ideal for larger exterior projects requiring a durable foundation prior to gloss or satin topcoat application.
Size: 5 Litres
Colour: Brilliant White
Finish: Undercoat (Mid/Low Sheen Base)
Base Type: Solvent-Based
System: Part of the Weathershield Exterior System
Adhesion: Promotes strong topcoat bonding
Opacity: Excellent coverage and surface build
Durability: Enhances overall exterior paint performance
Suitable for exterior use on:
Timber doors and frames
Window frames and sills
Fascias and soffits
Exterior joinery
Properly primed metal surfaces
Previously painted exterior woodwork
Dulux Trade Weathershield Exterior Undercoat provides a solid, even base that improves the flow and final finish of exterior gloss or satin topcoats. Its high-opacity formulation helps to conceal surface imperfections while promoting uniform colour development.
When used within the full Weathershield system, it contributes to long-lasting weather protection, helping reduce the risk of premature coating failure.
Ensure all surfaces are clean, dry and free from dirt, grease and loose material.
Remove flaking or defective paint and sand to a sound edge.
Treat any fungal growth with a suitable fungicidal wash.
Apply an appropriate exterior primer to bare timber or metal before undercoating.
Stir thoroughly prior to use.
Apply evenly using a quality brush or roller suitable for solvent-based coatings.
Allow recommended drying time before applying the finishing coat.
Product Name: Dulux Trade Weathershield Exterior Undercoat
Finish: Undercoat Base
Volume: 5L
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 × 5L
For exterior decorating projects requiring long-term performance, Dulux Trade Weathershield Exterior Undercoat 5L provides the ideal foundation for a professional finish. Delivering strong adhesion, high opacity and reliable durability, it supports a longer-lasting exterior paint system with consistent colour and protection.
