HDC IP68 Anti-corrosion Hoods & Housing TE Connectivity's HDC IP68 Anti-corrosion Hoods and Housing provide protection against environmental and electro-chemical contact corrosion. The hoods and housing are made of die-cast aluminum alloy and feature a stainless steel locking system for excellent vibration and shock resistance. The HDC Hood and Housing also protect the connections in harsh environments and industrial applications where long-term operations could be in jeopardy due to environmental influences. TE Connectivity's HDC hoods and housings have been confirmed to be anti-corrosion resistant for 500 hours of salt spray.