Av-DEC - The World Leader in the Science of Corrosion Prevention. Preventing aircraft corrosion is what Av-DEC does. The prevention of corrosion can be done using non-hazardous, durable, and easily applied products. This is the reason the company's engineers have continuously sought out better solutions to ensure corrosion is comprehensively eliminated and the aircraft is protected for the long haul. The Av-DEC story is one of constant improvement to help the aviation industry enhance aircraft safety through corrosion prevention.