VERZONE ECO Super K is an environmentally-friendly volatile corrosion inhibitor providing excellent rust prevention for steel and zinc. It is non-toxic, safe for people and the environment, requires no GHS signs, and is not regulated for dangerous goods transport. Each 1g piece protects up to 20 liters for 1-2 years in sealed enclosures or 6-12 months in semi-enclosures when placed near metal components. Performance testing, compliant with JIS Z-1519, confirms its efficacy on steel, cast steel, and zinc under various temperature and humidity conditions, including 24°C/90% humidity for immediate/delayed release, though it is unsuitable for aluminum.