DuraBlock Stain Blocking Paint Primer is a multi-surface interior and exterior water-based acrylic bonding primer that uses bio-based chemistry to replace toxic petrochemical ingredients without compromising quality. Use it to effectively prime surfaces that require a higher level of stain blocking, hiding power, and better overall bonding of the topcoat paint. The high solids formula with superior flexural strength enables better fill of hairline cracks and helps fill porous surfaces for better topcoat coverage. TECHNICAL DATA Chemical Type: Water-Based, 100% Acrylic Hybrid Emulsion Resins Typical Coverage: 350 - 450 Square Feet Per Gallon Typical Dry Time: 1 Hour VOC Content: 0 Grams/Liter DOCUMENT DOWNLOADS Product Data Sheet Safety Data Sheet Installation Guide ARCHITECTS/SPECIFIERS Visit our new Specification Data Portal for all product documentation for LEED v4, WELL, ILBC, Green Globes, CSI 3-Part Specs, and more.