Ronseal Knot Block Wood Primer and Undercoat White 750ml

This is a water-based white primer and undercoat designed for interior wood. It is formulated to permanently block knots and resin from showing through paint, helping you achieve a flawless finish that resists yellowing, cracking, and peeling. Suitable for knotty woods like pine, it can be used on bare or previously painted wood, and prepares the surface for painting by promoting adhesion and covering bold colours and dark marks. The product dries quickly and is ready to paint over in 4 hours, with a 750ml tin that provides durable coverage from a trusted manufacturer.

Features

• Permanently blocks knots and resin
• Covers bold colours and dark marks
• Suitable for bare or painted wood
• Ready to paint over in 4 hours
• Interior wood, water-based primer and undercoat