Zinsser Peel Stop Triple Thick Primer is a high-performance, water-based binding primer engineered to lock down and hide peeling, weathered surfaces—creating a smooth, white base for your topcoat. Its unique triple-thick formula penetrates and bonds to cracked or flaking areas, sealing them for an even finish. Ideal for both interior and exterior projects, this low-VOC primer works on a wide variety of substrates and accepts any latex or alkyd paint as a topcoat.

Whether you’re tackling old wood siding, rusty metal, masonry, stucco or vinyl, this primer delivers outstanding flexibility and adhesion—preventing future peeling and ensuring your paint stays put.

Key Features

• Triple-thick, water-based acrylic binding formula
• Locks down peeling paint, weathered wood, rust and cracks
• Dries to the touch in approximately 30 minutes
• Covers 50–200 sq. ft. per gallon (surface-dependent)
• Low-VOC (100 g/L) for safer indoor and outdoor use
• Outstanding flexibility to accommodate expansion and contraction
• Bonds to metal, wood, masonry, stucco, drywall, laminate and more
• Topcoat-ready with any latex or alkyd paint

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.