StrongPIPE® Hybrid FRP

STRUCTURAL TECHNOLOGIES' StrongPIPE® Hybrid FRP System is supported by a team of specialists that help develop engineered solutions for pipe restoration or renewal.

Trenchless Pipeline Upgrade: StrongPIPE® Hybrid FRP

In response to applications requiring upgrade or renewal of extended runs of large diameter pipelines using trenchless methods, STRUCTURAL TECHNOLOGIES created the StrongPIPE® Hybrid FRP system.

The StrongPIPE® Hybrid FRP system is a proprietary composite that is comprised of continuously wound steel tensile wire reinforcement and fiber reinforced polymer (FRP) to provide structural repair and upgrade to pipe segments. The StrongPIPE® system is applicable to all types of pipelines and is installed internally on pipe diameters of 48 inches and larger.

The StrongPIPE® system has been value-engineered to create a trenchless and cost-effective renewal option for critical pipeline systems. Expert field application of the system is available through our parent company's specialty contracting partners - the exclusive installers of StrongPIPE®.


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  • Standard production is for pipe with internal diameter 48 inches (1219 mm) and larger. For diameters below 48 inches (1219 mm), please contact STRUCTURAL TECHNOLOGIES.
  • Suitable for all types of pipe materials including PCCP, RCP, metallic and ductile.
  • Low profile system typically 1/2-inch to 1-inch - maximizes pipe diameter and reduces flow loss
  • Restores full functional capacity of pressure pipeline
  • Increases bending and hoop strength
  • Can be used to upgrade or increase the structural capacity of an existing pipe (undamaged) allowing increased pressure and commensurate fluid flow rate

  • Lower installed cost compared to other rehabilitation alternatives
  • Localized repairs or extended reaches of pipe
  • No shafts or excavation required to perform repairs
  • Access through standard manholes
  • Minimal downtime and impact to operations
  • Long term lifecycle extension of pipeline assets


StrongPIPE® Hybrid FRP System Components:
  1. Existing Pipe
  2. 1st Longitudinal Glass Fiber Reinforced Polymer (GFRP) Ply
  3. Steel Tensile Reinforcement
  4. Polymer Encapsulation
  5. 2nd Longitudinal GFRP Ply
  6. Flexible Membrane Topcoat


Technical Data:

Product Description SDS Technical  Data
Steel Tensile Reinforcement ASTM 881 Steel Wire N/A N/A
V-Wrap™ EG50 27 oz per square yard (915 g/m2) unidirectional glass fiber fabric PDF PDF
V-Wrap™ EG50B 24 oz per square yard (813 g/m2) unidirectional glass fiber fabric PDF PDF
V-Wrap 770 Epoxy Adhesive PDF PDF

Specialized Engineering Support Services for Pipeline Upgrade

STRUCTURAL TECHNOLOGIES’ Pipeline Solutions team provides valuable insight and assists in developing comprehensive technical packages for pipeline owners and consultants. These services include:

    • Feasibility assessment
    • Material selection
    • Specifications
    • Preliminary designs
    • Construction budgets

    Working with external engineering partners and our internal product application engineers, STRUCTURAL TECHNOLOGIES can provide turnkey investigate and design services. When teamed with a Structural Group contracting company, comprehensive design-build services can be provided.


    Pipeline Solutions Engineering Team Leader
    Anna Pridmore, PhD
    Vice President – Pipeline Solutions

    Anna Pridmore, PhD STRUCTURAL TECHNOLOGIES’ Pipeline Solutions Engineering Team is led by Anna Pridmore, PhD. She received her doctorate in structural engineering and has over ten years of interdisciplinary experience in advanced composites, design and material science with a focus on pipeline rehabilitation. Anna has provided detailed technical insight to hundreds of municipal, industrial and power generation pipeline owners and consultants across the United States and internationally. She supports clients with condition assessment needs, contingency plans, options analysis and recommendations for repair systems. Anna has authored or co-authored over 20 technical papers and also contributes to the industry by serving as an active member of committees and task groups for AWWA (CFRP Renewal and Strengthening of PCCP), ASME (Repair of Class 2 and 3 Moderate Energy Piping by Carbon Fiber Composite, ASME Section XI, Division I) and ASCE (Track Chair for 2014 ASCE Pipelines Conference). 


    STRUCTURAL TECHNOLOGIES' licensed engineering services are provided by Structural Technologies StrongPoint, LLC - A Structural Group Company, or through other licensed engineers.

    Installation Support

    STRUCTURAL TECHNOLOGIES provides construction phase services to ensure that our pipeline repair and renewal systems are installed properly and will carry out their intended functions. We coordinate with owners, consultants and pipeline general contractors to provide project-specific oversight, quality assurance and quality control.


    Turnkey Investigate – Design – Build Solutions 

    When paired with Structural Group's specialty contracting companies - we provide our pipeline owners and consultants with a full range of options analysis support, repair system design, materials and installation services for single source accountability. Together, we seamlessly deliver customized, cost-effective, and long lasting solutions for pipeline upgrade projects.



    STRUCTURAL TECHNOLOGIES — A Structural Group Company

    With member companies dating back to 1902, Structural Group is firmly committed to its ongoing mission of making new and existing structures stronger and last longer. Through its member companies, Structural Group delivers turnkey solutions that integrate technology, engineering, and construction. Structural Group provides state-of-the-art products and engineering support services through STRUCTURAL TECHNOLOGIES and specialty contracting services through STRUCTURAL and PULLMAN

    Learn more about Structural Group and its member companies.