GMT Composites Inc.

Custom fabricator of carbon fiber composite parts for the industrial, medical imaging, marine, aerospace and robotics industries. Facility with multiaxis milling machine and onsite engineering and design team. Offers full service, from idea to delivery.

48 Ballou Blvd.
Bristol, RI 02809 US


As Seen In CompositesWorld

GMT Composites fabricates 7m continuous passerelle
The boat boarding ramp, made for an luxury tour boat application, is believed by GMT to be the longest fixed-length passerelle in the world.

Carbon stairs make boarding a sailing yacht a breeze
GMT Composites (Bristol, R.I.) makes lightweight but strong — typically carbon fiber — yacht-boarding systems that are easily moved and stowed.

Langan Design Partners selects GMT Composites for new yacht
Bristol, R.I.-based GMT will supply the carbon fiber rigging for a new 55-ft, high-performance yacht destined for Brazil.

GMT Composites nearing completion of massive furling boom
GMT Composites says it is in the final stages of building a 35-ft carbon fiber furling boom for a custom 70-ft catamaran being built for a customer in Brazil. It is resin infused and features a foam core structure.

GMT Composites places carbon fiber mast on specialty yacht
The new Hylas 70, Archangel yacht features a 95-ft/29m carbon fiber mast that saved more than 700 lb/318 kg aloft versus a standard aluminum mast.

GMT delivers carbon fiber antenna and instrument arch
GMT Composites designed the 600-kg structure to just fit inside a shipping container, for delivery to yacht-builder Holland Jachtbouw.

Innovative carbon fiber rudder to stear 147-ft sloop
The rudder is more than 6m long and weighs 421 kg.

Focus on Design: Composite adaptor board supports medical treatment
Carbon fiber/epoxy the only material choice in this critical X-ray application.

Carbon-composite blades

Carbon composites move beyond racing yachts into commercial and military marine applications.
Marine carbon composites move beyond racing yachts into commercial and military vessels.

Product Categories of GMT Composites Inc.

Tools/tooling materials
  • Mandrels
    • Mandrels, other
Fabricating services
  • Thermoset materials
    • Adhesive bonding
    • Hand layup
    • Honeycomb structures
    • Moldmaking and patternmaking
    • Prototyping
    • Resin transfer molding (RTM)
    • Vacuum-assisted resin transfer molding (VARTM)
Composite Structures & Components
  • Aerospace, aircraft interior
  • Aerospace, radomes
  • Automotive, body panels & substructures
  • Automotive, underhood
  • Infrastructure, composite
  • Laminate panels, with core
  • Laminate sheets, solid
  • Marine, boat (hulls, decks, bulkheads, etc.)
  • Marine, docks/pilings
  • Marine, other
  • Pressure vessels
  • Profiles
  • Rods
  • Tubes
  • Other composite structures
Design, testing, consulting, other services
  • CAD/CAM/CAE design
  • Expert witness
  • Repair services, composites
  • Consulting
    • Consulting, process development