Zep Commercial Clear Shell 32 Oz. Mold & Mildew Inhibitor

Uses Chitosan (recycled crab shells) to form an invisible antimicrobial barrier against mold, mildew, and odors that result from mold. Thoroughly scrub surface to remove mold and mildew prior to applying Clear Shell. Low VOC, biodegradable, and contains no butyls, bleach ammonia, or phosphates. Interior/exterior use.