Rustins knotting (125ml)

Rustins Knotting prevents bleeding through paint film by sealing knots in wood. It's fast-drying and prevents paint discoloration. Suitable for interior and exterior use. Apply liberally over knots and surrounding area after sanding. Not suitable for use under polyurethane clear varnishes, water-based varnishes, or water-based paints. Rustins Knotting - 125ml.