Bi-Protec is a two-step process that combines electroless nickel with an overlay of Armoloy TDC or XADC. Excellent for highly corrosive applications, this dual coating involves an initial layer of electroless nickel at a thickness of .0002/.003" followed by a .0001/.0003" deposit of thin dense chrome.

In addition to maximum corrosion protection, Bi-Protec can also be employed to impart the benefits of Armoloy TDC or XADC to aluminum components, by virtue of the electroless nickel under-layer, which adheres absolutely to the aluminum substrate.

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