HG mold cleaner foam spray easily removes all mold, eliminating and preventing the dirty black spots. The foam formula gives this mold cleaner better adhesion, a longer application time, a less pungent smell and less chance of splashing. For tile, silicone joints, stucco, etc. Self-acting. Results within 30 minutes. Less pungent odor. Safety information. Can be corrosive to metals. Causes severe burns and eye damage. Highly toxic to aquatic organisms. Forms toxic gas in contact with acids. Corrosive to respiratory system. Do not use in combination with other products. Wear protective clothing and eye protection. After swallowing, rinse mouth, do not induce vomiting. In case of contact with skin or hair, remove contaminated clothing immediately and rinse skin with water. In case of contact with eyes, gently rinse eyes with water for several minutes, remove contact lenses if possible and continue rinsing. When seeking medical advice, keep package or label available. Keep out of the use of children.