Cortec® Creates New High-Temp Anticorrosion Slip Coating for Electrical Conduits

EIN cortec logo 400

December 9, 2021

What can be done to keep the inside of electrical conduits from rusting while providing enough slip for electrical wires to pass through? Cortec® has provided the answer with the development of its new EcoShield® VpCI®-386 HT Slip Coating. This is yet another example of Cortec’s role as an innovator in corrosion control, creating exciting new products adapted to specific end user needs.

EcoShield® VpCI®-386 HT Slip Coating is a unique high-heat-resistant water-based DTM (direct-to-metal)
coating that offers improved surface slip, excellent outdoor weathering, and thermal heat protection. It
significantly retards the reaction of metal ionization and repels water, thus protecting against corrosive
electrolytes and aggressive environments. This thixotropic coating resists sagging and running and is thermally stable when dried in ambient temperatures up to approximately 500 
°F (260 °C), depending on
color choice (Clear, Black, or Aluminum). EcoShield
® VpCI®-386 HT Slip Coating offers extended protection in sheltered, unsheltered, indoor, or outdoor conditions and is UV resistant to resist cracking or chipping from prolonged exposure to sunlight.

Why Corrosion Protection for Electrical Conduits?
Corrosion protection is more critical in some environments than others. For example, electrical conduits are more vulnerable to corrosion when stored
outdoors than indoors, or when installed in a tropical, humid climate instead of a hot, dry one. Corrosion protection may be necessary in several phases of the piping life cycle.

1. Outdoor Storage: Manufacturers are often short on storage space, which can cause storage to overflow outdoors. If it rains and the internal coating has not fully cured, the inside of the conduits may flash rust. EcoShield® VpCI®-386 HT Slip Coating minimizes this problem.
2. Overseas Shipping and Storage: Manufacturers sometimes have to ship pipes and tubing overseas, where they may even be stored for six months longer before the customer is able to install them. Again, EcoShield
® VpCI®-386 HT Slip Coating can help protect against internal corrosion.
3. Harsh Installation Environments: Industrial facilities must install electrical conduits in a variety of conditions, from dry indoor office spaces to corrosive offshore environments. EcoShield
® VpCI®-386 HT Slip Coating can help delay or reduce the corrosion process inside the tubing so
the electrical conduits last longer.

Why a High-Temp Slip Coating?
Slip coatings are very important for electrical conduits because they reduce the coefficient of friction on the inside of the pipes. This makes it easier to push electrical wiring through the tubes when they are installed. By combining a slip coating with Cortec® VpCI® corrosion inhibitors, EcoShield® VpCI®-386 HT Slip Coating helps electrical conduit manufacturers and users tackle two challenges at once. Another important consideration is the temperature required during coating application. Many tube makers must briefly expose piping to extreme heat during the manufacturing process (e.g., to cure coatings). EcoShield® VpCI®-386 HT Slip Coating is therefore designed to withstand high temperatures so it will not be destroyed.

Get Ready to Coat the Conduit!
It can be challenging to protect pipe internals from corrosion, but Cortec® has made it possible with a new Micro-Corrosion Inhibiting Coating designed for this specialty application. By using EcoShield® VpCI®-386 HT Slip Coating, manufacturers can protect against flash corrosion during storage and shipment, and end users can help electrical conduits last longer even after pipes are installed in corrosive environments.

Go HERE for more information

Related Articles


Latest Articles


Changing Scene

  • Apply for ECAO 2026 Scholarships

    Apply for ECAO 2026 Scholarships

    July 31, 2026 It is that time of year again when ECAO are offering scholarships to post-secondary graduates for children or wards of salaried employees of ECAO Member Companies. The scholarship was launched in 2004 and awards 5 successful recipients with a scholarship of $5,000 each. The scholarship will be awarded to outstanding students enrolling… Read More…

  • Toronto Pearson Extends Transformation with $1.5B in Terminal Modernization

    Toronto Pearson Extends Transformation with $1.5B in Terminal Modernization

    July 31, 2026 Toronto Pearson has announced contracts to NORR-DIALOG and PCL Construction, who will design and construct another major infrastructure program. The $1.5-billion investment to launch the Terminal 1 and Terminal 3 Revitalization Program has been awarded to NORR-DIALOG, a joint venture between two firms both Ontario-incorporated, and PCL Construction, a global firm created and headquartered… Read More…

  • D.A.D. Sales Welcomes new Team Member – Tom Graham

    D.A.D. Sales Welcomes new Team Member – Tom Graham

    July 31, 2026 D.A.D. Sales announced the addition of Tom Graham as Construction Sales Representative on the D.A.D. Sales team, supporting Northern Alberta. “Tom brings valuable industry experience, a strong understanding of the construction market, and firsthand insight as a skilled tradesman. He understands our customers’ businesses and the realities they face in the field.… Read More…

  • Franklin Empire Opens New Full-Line Branch in Peterborough

    Franklin Empire Opens New Full-Line Branch in Peterborough

    July 31, 2026 Franklin Empire is pleased to announce the opening of their new Peterborough branch, bringing together electrical, automation, and Process Instrumentation expertise under one roof. This new location expands their ability to better serve contractors, industrial facilities, OEMs, municipalities, and commercial customers throughout the Peterborough region with a complete range of products, technical… Read More…