Looking for a "silver bullet" primer that covers everything unwanted? Use the one contractors keep in their vans: Rust-Oleum Zinsser B-I-N Primer. As the original, shellac-base primer-sealer, nothing is better at permanently blocking stains, odors and wood knots.

• Shellac-base primer-sealer
• For interior and spot exterior use
• Seals knots and sap streaks
• Seals pet, smoke and musty odors
• Sticks to all surfaces without sanding
• Lightning fast dry - recoat in 45 minutes