Horizon Interior Drywall Sealer is an ultra-low VOC, low odor paint designed to significantly reduce odor & polluting vapors released into the air which can be harmful or irritating to the user or occupants of the area being painted. This flat, vinyl acrylic latex sealer is specifically formulated for use on interior porous surfaces such as drywall, plaster, textured ceilings, wallboard, fiberboard, and hardboard.Horizon coatings are approved for LEED v.4 (Leadership in Energy and Environmental Design) program qualifying them for credit points within the “green building” rating system. The aim of the rating system is to improve occupant well being, environmental performance, and economic returns of buildings using established and innovative practices, standards, and technologies. Approved by the Master Painter's Institute under category # 149. Environment Canada VOC compliant category #42.