National foam (Knockdown® Class A Foam)

Knockdown® – Class A Foam Concentrate

Knockdown® is an environmentally responsible Class A foam concentrate from National Foam, engineered for unmatched firefighting performance and versatility. Designed for use in Class A/B foam systems, it is highly effective in Compressed Air Foam Systems (CAFS).

Product Details

• Type: Class A Foam Concentrate (also compatible with Class B hydrocarbon fires)

• Application: Class A/B foam systems, CAFS, and exposure protection

• Formulation: Environmentally responsible, alcohol-free

• Container Size: 5-gallon pail

• Certifications: U.L. Listed as a Wetting Agent

Key Features:

• Enhances water penetration by reducing surface tension for deep-seated fire control

• Improves heat absorption by allowing foam to cling to vertical surfaces longer

• Effective as a protective coating to prevent ignition and shield exposures

• Stable premix for over 30 days (with potable water) – longer than traditional Class A foams

• Emulsifies Class B hydrocarbon fuels

• Compatible with fresh, brackish, and seawater, maintaining foamability even in cold water

• Alcohol-free for higher flash point and compatibility with Class A/B systems