Description Bartoline Patent Knotting Bartoline Patent Knotting Used for sealing knots in timber prior to over-painting. Traditional blend of several solvent based components. Stops wood resins from staining through. Knotting solution represents a quick-drying, alcohol-based solution consisting of natural lacquer and synthetic resin. It’s designed to seal knots and resinous sections of untreated timber before applying paints, waxes, or polishes. The film-forming resins in Patent Knotting are resilient against natural tree sap and remain insoluble in hydrocarbon solvents like White Spirit—commonly utilized in traditional alkyl-based primers and decorative coatings. This insolubility and resistance to oil prevent any adverse reactions between the paint and the residual softwood sap concentrated around the knots. The solution dries within 5-10 minutes upon application and can be recoated after 30 minutes under standard conditions. This solution is perfect for sealing knots in various softwood types, including doors, skirtings, stair rails, and window frames. It’s important to note that it cannot be painted over with paints containing alcohol.
