Zinsser Gardz Interior Surface Sealer - Clear 946ml
Seal crumbling and porous surfaces with Rust-Oleum Zinsser GARDZ Problem Surface Sealer. This sealer is made from a water-based formula which dries to a matt, clear finish and is low odour. It will create a hard, paintable surface over adhesive residues, damaged drywall, and other chalky surfaces.