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Zinsser Block Filler 2X is a high-build acrylic concrete primer for interior and exterior residential, commercial, and industrial applications. This water-based primer has twice the thickness of ordinary primers to fill pinholes and seal voids in concrete block and masonry, resulting in a smoother and more uniform topcoat. The block filler primer 2X seals semi-porous surfaces to provide better topcoat coverage against concrete salt (efflorescence) damage and a consistent sheen without pin holing. Besides, the block filler tolerates high pH levels (up to 13) in new concrete and masonry. Zinsser primer may be applied to new masonry surfaces before a full 30-day cure. Easy to use, apply the concrete primer with a synthetic bristle brush, roller, or airless sprayer. Use this white primer on concrete, cinderblock, brick, stucco, fiber cement siding, plaster, mortar, concrete masonry units (CMU), and other cementitious surfaces.

• UPC: 020066309947
• Manufacturer Part No: 293245

• Brand Name: Zinsser
• Base Type: Water-Based
• Coating Material: Acrylic
• Sheen: Flat/Matte
• Color: White
• Product Type: Block Filler
• Full Cure Time: 48 hr
• Color Family: White
• Container Size: 1 gal
• Odor Level: Low Odor
• Recommended Surface: Concrete/Masonry
• Indoor or Outdoor: Indoor and Outdoor
• Clean Up: Mineral Spirits
• Time Before Recoating: 30 min
• Coverage Area: 100 sq ft
• Stain Blocking: No
• Tintable: No
• VOC Level: 100 g/L
• Dry Time: 30 min