Ronseal Knot Block Wood Primer and Undercoat White 250ml - RON37035

Knot Block Wood Primer and Undercoat is a water-based white primer that blocks knots and resins from showing through paint. It helps paint adhere for a flawless finish that won’t yellow, crack, or peel, and is suitable for knotty woods such as pine. The product is designed for interior use and can be applied to both bare and previously painted wood. It is available in a 250 ml volume, with an approximate coverage of 12 m² per litre, and is ready to paint over in 4 hours. It permanently blocks knot stains and offers quick-drying performance.

The formula is designed to be rapid-drying and provide a stable base for topcoats, helping achieve a smooth, uniform finish.

Weight and origin information indicate a lightweight primer manufactured by Sherwin-Williams.

Features

• Volume: 250 ml
• Coverage: 12 m² per litre
• Ready to paint over in 4 hours
• Water-based white primer for interior wood
• Permanently blocks stains from knots
• Suitable for bare or previously painted wood