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
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