Unistrut Defender is a corrosion-resistant coating designed for channel, fittings, clamps, and hardware. It provides a service life between Hot-Dip Galvanized and stainless steel. Unistrut Defender was tested against Hot-Dipped Galvanized by an independent, accredited 3rd party lab, for 3000 hours of continuous salt spray exposure per ASTM B117. The results showed that the Unistrut Defender coating is 3 times more corrosion-resistant than Hot-Dip Galvanzed.



Anticipated Service Life

Unistrut Defender has over 3 times the corrosion protection of Hot-Dip Galvanized. anticipated-service-life.png


  • 3X the performance of Hot-Dip Galvanized
  • Significantly lower cost than stainless steel
  • Low maintenance


The Unistrut Defender product line is called out with the letters DF at the end of the part number. Example: to specify Unistrut Defender in P1000, use: P1000 DF