CS-309-30 acrylic curing and sealing compound is a high solids, clear, transparent, ready-to-apply, non-yellowing, liquid membrane-forming compound formulated from special acrylic polymers and quick-evaporating solvents that effectively cures and seals freshly placed concrete. Once properly applied, CS-309-30 provides a premium-grade film for superior moisture retention and hydration to produce the designed strength of the concrete. CS-309-30 is ideal for application on exterior concrete surfaces, sidewalks, patios, multi-level parking decks, driveways, and parking areas.