CoroTech Co. - Corrosion Technology
CoroTech Co. - Corrosion Technology

New Process

CoroTech has developed an innovative new process for protecting the inside of pipes and storage tanks from corrosive substances. Called "infusion lining", the process can lead to significant savings for industrial companies that use carbon, alloy or fiberglass reinforced plastic (FRP) pipes or tanks.

The process relies on creating a negative cavity pressure within a pipe or tank to pull liquid resins into dry composite laminates. The resins bond to the interior surfaces to create a uniform, hardened, durable lining that protects from corrosive substances and can extend the life of the protected surfaces by years. CoroTech's infusion lining process is an adaptation of the FRP infusion method used successfully by the marine and aerospace industries.

There are several performance and financial benefits of the CoroTech infusion lining process, including:

  • Capability to effectively line difficult to access areas where traditional spray, trowel, or wipe-on methods are impractical and inconsistent (including pipes as small as 2" diameter)
  • Delivers a consistent and repeatable finished coating thickness that can be designed from .050 to .50 inches thick
  • Infusion linings have a longer life-cycle due to improved coating formulations with improved corrosion and abrasion performance characteristics (Infusion does not require high levels of thixotropic agents to cure as found in traditional coating formulations)
  • Provides cost effective alternative to replacement of existing pipes and tanks that also minimizes system downtime because of the ability to field apply the linings
  • Infusion lining carbon steel pipes and inserts offers a lower cost alternative to utilizing higher cost alloys for new applications requiring corrosion resistance
  • Ability to produce very strong structural laminates with high fiberglass content
  • Increased safety conditions with no VOC's emitted into the atmosphere (the product is produced in a closed cavity)
  • Infusion is a clean process with no resins left to dry on open surfaces
The process has been recently filed with U.S. Patents Office, currently patent pending. For more information on this process, contact Kirk Kuipers, Advanced Composites Division Manager at CoroTech.