This aerosol popcorn ceiling texture features a water-based formula with real polystyrene chips and is designed to match commercially-applied popcorn acoustic-ceiling textures. The upright nozzle sprays vertically for convenient application and the texture offers easy water cleanup. To achieve the best results, please read the directions carefully before starting your textured ceiling repair project. Protect carpet, furniture and walls from overspray. (TIP: Pin up plastic drape or hold a box around patch area to contain overspray) Spray in short rapid bursts as material discharges rapidly.