PCI 3 Coating Systems

Lone Star Fastener's PCI 3 Coating Systems have for years provided excellent make up/break out torque characteristics and corrosion resistance. PCI 3 has established itself as the defacto standard for corrosion protection in petro-chemical, refining, pipelines, offshore platforms and structures, and other applications challenged by a corrosive environment.

Combined with our Fluoropolymer topcoat, the PCI 3 system with zinc plate base coat, provides the abrasion, chemical resistance, and lubricity required for a wide variety of hydrocarbon production and processing applications around the world.

The PCI 3 system has consistently proven itself to withstand over 2000 hours of salt fog exposure per ASTM B-117 requirements.

The secret to the success of Lone Star’s PCI 3 Plus System lies in SermaGard, the ceramic metallic bonding matrix applied as a basecoat. SermaGard provides superior corrosion resistance in salt environments, especially splash zone areas, and with Whitford Xylan Fluoropolymer top-coats provide the lubricity to achieve maximum torque during make-up and break-out.


In one test cycle, Lone Star PCI 3 Plus coated bolts were exposed to extreme Salt Fog Testing while torqued to 50% minimum yield strength on a standard 6” flange. The bolts were inspected every 500 hours to record potential failure rates, and even after 4000 hours of extreme stress, the bolts coated with the SermaGard Basecoat and our proven Whitford Fluoropolymer topcoat showed no evidence of red rust or frozen nuts.

Frequent quality tests prove that the PCI 3 systems provides:

• Protection from corrosion damage caused by handling and mechanical installation.
• Excellent elongation properties that ensures integrity of the coating during the tensioning process.
• Assurance of an extended fastener product life.

Also available with the PCI 3 Plus System is a U.V. resistant topcoat.