Prepare your timber like a pro with Bartoline Patent Knotting 500ml. This quick-drying, alcohol-based natural lacquer and synthetic resin solution is designed to seal knots and resinous areas in bare timber before you paint, wax, or polish. It locks in natural sap to stop it from bleeding through and ruining your perfect top coat.

• Stops Sap Bleed - Seals tough wood knots to stop sticky resin from staining your paint or varnish.
• Very Fast Drying - Dries to the touch in just 5 to 10 minutes so you can get back to work quickly.
• Quick Re-coating - Ready for another coat after just 30 minutes under normal conditions.
• Tough Film Protection - Formulated with resins that resist natural tree sap and hydrocarbon solvents like white spirit.
• Versatile Prep - Works perfectly on softwoods and hardwoods under traditional paints, waxes, and polishes.