Ronseal Knot Block Primer & Undercoat - 250ml

The Ronseal Knot Block Primer & Undercoat is a high-quality preparatory coating designed to seal wood surfaces and provide the perfect base for top coats. This professional-grade formulation effectively blocks knots, resinous areas and other imperfections in wood, preventing bleed-through and ensuring a smooth, even finish for your painting projects.

Specially developed for interior wood surfaces, this primer undercoat combination improves adhesion and coverage of your final top coat. It dries to a white base that helps achieve true colour representation with your chosen decorative finish.

Key Benefits:

• Blocks knots and resinous areas effectively
• Seals porous surfaces for improved top coat adhesion
• Dries to a white finish for accurate colour reproduction
• Low odour formulation suitable for interior use
• Quick drying time allows for faster project completion

Ideal for use on doors, skirting boards, window frames and other interior woodwork. For best results, apply with a brush or roller, allowing sufficient drying time between coats. The durable formulation ensures long-lasting protection and prepares surfaces perfectly for your chosen top coat.

Variant Details

• Size: 250ml