FIBERGLASS TANKS & PIPING
FOR DEMANDING CONDITIONS
Solutions designed, fabricated, and supported by composite specialists who understand real process conditions, not just specifications.
For more than 50 years, GPI has designed and manufactured fiberglass tanks, vessels, scrubbers, and piping systems for aggressive chemical and industrial environments. Our work is defined by careful material selection, application-specific engineering, and fabrication practices that prioritize long-term performance, safety, and maintainability in the field.
We engineer FRP systems designed to perform in demanding industrial applications.
From small custom builds to large-diameter tanks and vessels, each system is engineered to applicable codes and specific load cases, operating conditions, and duty cycles required for long-term industrial service.
Our Capabilities
Our expertise and experience ensure we are able to support our customers for the full FRP system lifecycle from engineered design through fabrication,
installation support, and long-term performance in corrosive environments.
Engineered FRP Tanks & Vessels for Aggressive Service
FRP Piping & Duct Systems for High-Corrosion Applications
Corrosion-Resistant FRP Scrubbers for Emissions Control
FRP Inspection, Repair & Life-Extension Services
Our custom fiberglass systems are built to perform in real operating conditions
GPI fiberglass systems are in operation across a wide range of industrial applications, including biofuel and power generation, pollution control, food processing, and agricultural processing. Our experience spans everything from corrosion-critical process vessels to large-diameter tanks and custom components that must perform reliably where failure is not an option.
Engineered FRP Solutions Serving Industrial Operators Worldwide
We design and manufacture FRP systems for industrial customers across North America and Europe, with active installations in the United States, Canada, Hungary, Portugal, and the Canary Islands.
We’re composite specialists with a practical engineering mindset.
Our work is designed to last for decades. That’s why we work with engineers and project teams to understand the long term needs of every project.
When the time comes for maintenance and repair, our experience ensures that we’re the partner you can count on for the full lifecycle of your composite equipment. From design and fabrication through inspection and repair, this practical mindset informs every design decision we make.
How we’re different
The work we do demands experience, ingenuity, and the ability to deliver under pressure. Our customers trust us because we bring a depth of capability few can match.
Deep custom engineering capability for composites
We are proud of our decades of experience designing and building highly engineered, custom fiberglass and composite solutions, including tanks, vessels, scrubbers, piping, ducts, and other specialty structures tailored to specific operating conditions and corrosive environments.
Long track record and broad industry breadth
We’ve been operating since 1973 and have worked across a wide range of heavy industrial market segments, from chemical and wastewater service to mining, food, steel, petroleum, and more. That history and cross-industry experience give us a level of application knowledge most competitors don’t have.
Proven performance in real, demanding service conditions
GPI products are used in environments where corrosion resistance, durability, and long service life are critical. We’re trusted by major industrial clients and engineered for real world duty cycles, aggressive chemicals, and complex process requirements, making GPI Composites the dependable choice for mission-critical systems.
Industries we serve
Our custom tanks, vessels, scrubbers, piping, and composite components support critical operations in pharmaceuticals, wastewater and chemical processing, steel production, petroleum refining, mining, food processing, and paper manufacturing. Across these industries, GPI systems are specified for environments where aggressive chemistries and demanding duty cycles make reliability essential.
We’ve proudly joined the RPS Industrial Group
NEWS | January 2026
GPI Composites is now part of the RPS Industrial Group — a family of specialized companies serving mission-critical industries across North America.
A shared commitment to complex work.
GPI and RPS align on core capabilities as well as a shared core belief: the industries that power the world deserve partners with the experience, precision, and discipline to take on the toughest projects.
When performance counts, experience matters.
Reliability isn’t claimed — it’s earned.
Every project tells a story of complex requirements delivered cleanly and on schedule, proof that reliability can be engineered.