How fishing rods are made

A graphite rod is rolled like a rug around a steel taper, then baked until the resin melts and sets.

stations: 8
things upstream: 81
raw sources: 24
steps from the ground: 10

The short version

Most modern fishing rods begin as a hollow blank. Sheets of carbon fiber or fiberglass, already soaked in resin, are cut to a taper pattern, rolled around a tapered steel mandrel, wrapped tight in tape and baked. After the mandrel is pulled, the blank is sanded and coated. Guides, a cork grip and a reel seat are then fixed on.

Cut the flags

Rolls of prepreg, graphite or fiberglass already carrying resin, are kept cold so they do not cure early. Pieces called flags are cut from them, with angles worked out so the finished rod bends the right way. Machines now cut them to precise patterns, where once it was done by hand.

Goes in
Carbon fiber Fiberglass Epoxy
Tack a flag to the mandrel

A hot iron sticks the edge of the flag to a long tapered steel rod. That rod, the mandrel, sets the blank's inside diameter and taper.
Roll the layers on

A machine with two heated plates slides in opposite directions and rolls the material onto the mandrel. Layers can be laid at 0, 45 or 90 degrees to strengthen the blank in different directions.
Bind it in shrink tape

The roll is wrapped tightly in cellophane or shrink tape, which squeezes out trapped air and holds the layers down so the resin flows evenly.
Bake in a tall oven

Wrapped mandrels hang in racks inside curing ovens for several hours. The resin melts, flows and hardens, locking the fibers together. Some ovens are tall enough for a 14-foot one-piece blank.
Strip the tape and mandrel

After cooling, a machine pulls the tape off the blank. The steel mandrel is then pulled out, easier because release agents were applied before rolling. What is left is a hollow tube.
Sand and dip-coat

The blank is sanded smooth and to its exact diameter, then painted or clear-coated. One maker dips blanks into a pipe that goes 11 feet into the floor and hangs them to dry.

Goes in
Paint
Fix on grip and guides

A rod builder glues on a cork grip and a reel seat, and wraps thread around the legs of the guides to hold them. Guides are steel or titanium with ceramic or metal inserts that the line slides through.

Goes in
Cork oak bark Sewing thread Adhesive Steel

End of the lineFishing rod

Worth repeating

Before graphite, anglers used bamboo rods made of several strips of cane, milled to shape and glued into a light, hexagonal rod.
A rod's action describes how fast it springs back after bending, not how far it bends.
A "fast" fiberglass rod can have a slower action than a "medium" bamboo rod, because makers label action by their own rules.