400ml solvent-based aerosol stain blocker Matt White finish - covers damp, grease, nicotine, and pen stains Recommended for sealing wood and masonry Suitable for indoor and outdoor use Can be used as a finishing coat indoors No brush or roller needed - aerosol format for easy application Ideal for walls, ceilings, and hard-to-reach areas Douglas Stain Blocker Spray 400ml - Matt White Aerosol for Wood and Masonry Solvent-Based Stain Blocking in an Aerosol Format: The Douglas DS0400BL is a solvent-based stain blocker and covering sealer in a convenient 400ml aerosol can. The solvent-based formulation delivers strong stain-blocking performance, making it well suited to surfaces where water-based alternatives may not fully suppress the stain. What It Covers: This spray is designed to cover grease marks, damp stains, pen and ink stains, and nicotine discolouration on interior and exterior walls and ceilings. It is recommended for the sealing of wood and masonry substrates prior to reting or redecoration. Indoor and Outdoor Use: The Douglas Stain Blocker Spray is suitable for both indoor and outdoor applications, giving it broader versatility across decorating projects. It can also serve as a finishing coat when used on interior surfaces, reducing the need for an additional topcoat in some situations. Shop the full ting & Decorating range from Heavins.ie, with delivery across Ireland. Specifications Brand: Douglas (Douglas ts) SKU: DS0400BL Colour: Matt White Volume: 400ml Formula: Solvent based Application method: Aerosol spray Suitable surfaces: Wood and masonry Indoor use: Yes Outdoor use: Yes Can be used as a finishing coat indoors: Yes