Shellac-based primer, sealer and stain killer. Suitable for use on interior surfaces and spot priming of exterior surfaces. Offers excellent adhesion to glossy surfaces, including glass. Blocks stubborn and persistent stains including water stains, marker pens and more. Seals porous surfaces with excellent enamel holdout, even sealing bleeding knots and sap streaks. Permanently blocks every kind of odour. Touch-dry in 20 minutes. Recoatable in 45 minutes. Hard-dry in 1-3 days.