The IP69K test was designed for rating protection against a high-pressure jet stream (1160 to 1450 psi), high liquid temperature (176º F) and close nozzle distances (3.9 in. to 5.9 in.) from the enclosure surface. AE Series enclosures are designed with aluminum zinc as a base material, followed by polyester powder coat painting. This combination of materials provides a high level of corrosion protection and a lower weight when compared to stainless steel.