Salt spray testing

Salt spray testing is a standardised method for determining the quality of corrosion protection. It is an accelerated test whereby a 5% NaCl solution (salt water) is used to create a corrosive environment and parts are assessed periodically for appearance of rust and oxides. Essentially, the longer the timeframe before the appearance of corrosion, the better the coating protection.

We pride ourselves in providing our customers with the highest quality salt spray testing so they can be completely confident in our technology. Metavate work with Aerotech Laboratories Ltd who provide tests to British, European and American specifications:

ASTM B117

ISO 9227:2007 (E)

BS EN 1670:1998 (in conjunction with performance rating method BS EN 10289:2001)

BS EN 248:2002 (E)

MIL-STD-810F Method 509.4

Below is an example of zinc phosphate treated plates (on the left) versus Plaforization treated plates (on the right). Both plates have been powdercoated following pretreatment and placed in the same salt spray environment. Plaforized parts withstood the environment over 500 hours longer than standard zinc phosphated parts, a shocking 64% increased corrosion protection!