Zinsser B-I-N is a shellac-based primer, sealer and stain killer ideal for use on interior surfaces. This formulation can also be used to spot prime exterior surfaces including metal, trims, PVC and wood. Along with an extremely good adhesion to glossy surfaces, Zinsser B-I-N can seal bleeding knots, sap streaks, and permanently block odours from smoke and nicotine. Its dried film is non-toxic and hypo-allergenic, it may be used in areas where incidental contact with food items occur.
Ultimate performance primer-sealer
Permanently blocks odours
Seals knots and sap
Quick drying
 
We recommend using white for paler top coats and grey for darker top coats