Zinsser B-I-N Shellac-Based Primer & Sealer Review (2026)
By The DIYPicks Team · Updated July 2026
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- Stains
- Odor blocking
- New wood
- Metal
The go-to when you need to seal severe stains, smoke, or pet odors fast on interior surfaces.
Pros
- Best-in-class stain and odor blocker (smoke, water, pet, nicotine, tannin)
- Ultra-fast dry and 45-minute recoat
- Grips glossy surfaces with no sanding
Cons
- Strong ammonia/alcohol fumes need heavy ventilation
- No water cleanup — requires denatured alcohol
- Short shelf life; not for full-exterior or high-moisture use
Specifications
| Type | Shellac-based |
|---|---|
| Recoat | 45 min |
| Coverage | ~100-125 sq ft/qt |
| VOC | High (~550 g/L) |
| Cleanup | Denatured alcohol / ammonia |
| Use | Interior + spot exterior |