This knot block primer and 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't yellow, crack, or peel.

Perfect for knotty wood like pine, and suitable for use on bare or previously painted wood.

Guaranteed to completely block wood knots, and ready to paint over in 4 hours.