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Highway Department of Transportation


Over the last 15 years PTI has specialized in Duplex Coatings - a process of applying powder coating over galvanized surfaces.


This specialization has allowed PTI, and powder coatings in general, to become a valued resource for Department of Transportation projects.  


Key benefits include: 

  • Greater adhesion to galvanized surfaces.

  • Dramatically reduced field maintenance costs.

  • Accelerated processing times.

  • Encapsulate galvanized surfaces to eliminate zinc contamination. 


Over the years we have brought our experience to many infrastructure projects including:


  •   Over 500 overhead highway sign structures

  •   Bridge barrier railing

  •   Pedestrian railing

  •   Bridge structural steel

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