Ronseal Knot Block Primer & Undercoat White 250ml

Ronseal Knot Block Primer & Undercoat White 250ml

Our Knot Block Wood Primer Undercoat completely stops wood knots and wood resins showing through your paint. This primer and undercoat also covers bold colours – dark marks and helps your paint to stick! It makes sure you get a flawless finish that won’y yellow – crack or peel. Perfect for knotty wood like pine.

Guaranteed to completely block wood knots.
Ready to paint over in 4 hours.
Use on bare or previously painted wood.