KnockDown reduces the surface tension of water, allowing it to reach deep-seated fires, provide quicker knockdown, and reduce the amount of water required to extinguish a fire. In addition, KnockDown increases the heat-absorbing capabilities of water by giving water the ability to adhere to vertical surfaces. A coating of foam can also provide exposure protection to prevent fuels from igniting. KnockDown can be used for forest and wildland fires, structural fires, tire fires, and industrial fires. Designed for use in Class A/B foam systems and is excellent for Compressed Air Foam Systems (CAFS). Can be premixed with cold, fresh, brackish, or salt water. Biodegradable. USDA approved for use in aircraft, water scoopers, fixed bucket helicopters, and ground engines. Meets NFPA 18, NFPA 298, NFPA 1145 (Structure Attack), and NFPA 1150.