Zinsser GARDZ Problem Surface Sealer

Zinsser GARDZ Problem Surface Sealer is a clear, water-based acrylic resin sealer designed for interior use on porous or problem surfaces before painting, texturing, or wallcovering. It is suitable for damaged drywall, plaster, calcimine, joint compound, acoustic and texture finishes, stucco, cementitious coatings, and uncoated wallpaper surfaces. The formula dries water-clear and seals in old adhesive residue, creating a stable base for further finishing work. Key Features Deep Penetration: Stabilizes damaged and porous surfaces including drywall, plaster, and calcimine. Clear, Hard Film: Dries to a moisture-resistant, water-clear finish. Prevents Drywall Issues: Helps stop blistering and bubbling during skim coating. Seals Adhesive Residue: Locks in old wallpaper paste to prevent topcoat failure. Strengthens Texture: Hardens soft or crumbly texture and popcorn finishes. High pH Tolerance: Can be applied to surfaces with pH levels up to 12.5. Low Odor Formula: Water-based resin with low odor for interior use. Specifications Specification Details Formula Type Water-based acrylic resin Application Surfaces Drywall, plaster, calcimine, texture, stucco, cementitious coatings Finish Color Milky blue-white when wet; dries clear High pH Tolerance Up to pH 12.5 Coverage Rate 350–450 sq ft per gallon Zinsser GARDZ Problem Surface Sealer penetrates, seals, and stabilizes porous interior substrates to create a uniform surface ready for painting, texturing, or wallcovering.