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Dulux Trade Weathershield Exterior Undercoat Brilliant White 2.5L is a professional solvent-based preparatory coating designed to provide the ideal base for exterior gloss and satin topcoats. Developed as part of the Weathershield exterior system, it delivers excellent opacity, strong adhesion and enhanced durability on exterior wood and suitably primed metal.
The 2.5 litre pack is well suited to medium-sized exterior projects where a reliable, high-build undercoat is required before finishing.
Size: 2.5 Litres
Colour: Brilliant White
Finish: Undercoat Base
Base Type: Solvent-Based
System: Compatible with Weathershield Exterior Gloss & Satin
Coverage: High opacity and surface build
Adhesion: Promotes strong bonding for topcoats
Durability: Supports long-term exterior protection
Suitable for exterior use on:
Timber doors and frames
Window frames and sills
Fascias and soffits
Exterior cladding and joinery
Properly primed metal surfaces
Previously painted exterior woodwork
Dulux Trade Weathershield Exterior Undercoat provides a smooth, even foundation that enhances the final appearance and longevity of exterior finishing coats. Its high-opacity formulation helps mask surface variations while ensuring consistent colour development when overcoated.
When incorporated within the full Weathershield system, it contributes to a more durable exterior coating system, helping resist weathering, moisture ingress and premature paint breakdown.
Ensure surfaces are clean, dry and free from grease, dirt and loose paint.
Remove any defective coatings and feather edges to create a sound surface.
Treat mould or fungal growth with a suitable fungicidal wash.
Prime bare timber or metal with an appropriate exterior primer prior to undercoating.
Stir thoroughly before use.
Apply evenly using a quality brush or roller suitable for solvent-based paints.
Allow sufficient drying time before applying the chosen topcoat.
Product Name: Dulux Trade Weathershield Exterior Undercoat
Volume: 2.5L
Application Method: Brush or Roller
Suitable Surfaces: Exterior Wood & Primed Metal
System Compatibility: Weathershield Exterior Finishes
Use Classification: Exterior Preparatory Coating
Pack Size: 1 × 2.5L
Dulux Trade Weathershield Exterior Undercoat 2.5L provides a dependable foundation for professional exterior decorating. Offering strong adhesion, excellent coverage and enhanced durability, it ensures a consistent, long-lasting finish when used beneath Weathershield gloss or satin topcoats.
