Zinsser Cover Stain is a professional-grade oil-based primer trusted by painters, remodelers, and restoration contractors for its exceptional stain-blocking power. Designed to tackle difficult water-soluble stains such as water, smoke, and nicotine damage, it also hides dark colours, seals cedar and redwood tannin bleed, and delivers outstanding adhesion for renovation and repaint projects. Its fast-drying formula performs indoors and out, making it an excellent choice for exterior wood, new construction, and restoration projects where dependable stain blocking is critical.
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