Spray and Forget is a unique no-rinse exterior cleaner that is easy-to-use. Spray and Forget works on all types of exterior surfaces to remove green and black stains caused by algae, mold, mildew, moss and lichen. You simply spray it on and forget it. The green and black stains will disappear with subsequent rainfall over time. It is a great product that is easy-to-use, maintenance-free and only requires one-application. Spray and Forget is eco-friendly and does not contain bleach, acid, lye or phosphates. Use Spray and Forget and eliminate the need for damaging pressure washing or laborious rinsing. Spray and Forget is bio-degradable, non-corrosive, non-acidic, non-caustic and has a near neutral pH, so it will not damage your windows, gutters, awnings, patio furniture or cars. It also works to prevent stains caused by biological growth from returning. Spray and Forget, It's that easy. Look for the yellow label.