07-15-2015, 07:01 PM
Re: Varnish "blisters"?
Graphite rods need no surface protection.
The blanks are sanded after heat curing to remove the spiral marking from the heat-resistant polypropylene tape and then they are coated. But the sanding and coating is purely cosmetic to give the blank a shiny surface. Rods without sanding and the coating have been sold so even if the entire coating of your rod flaked off, it would NOT affect the fly rod.
The Itinerant Angler
"Once a blank is rolled, it must be tightly bound in a heat-resistant polypropylene tape, to hold it in its rolled form. This tape is wrapped around and around the rod in a spiral pattern, and ultimately gives “natural finish” rods their ridged shape, which I’ve heard compared to a snake belly. Once taped, the blank sections hang vertically in a giant walk-in oven to cure. All the resins are heated and harden, in a process akin to firing pottery. Interestingly, the tape wraps must stay in place during this process, both to hold the form and also “to keep all the resin from liquefying and dripping off the blank onto the floor,” according to Crabtree....
Next, the tape is removed from the outside. For natural-finish rods, like Scott’s current G2 series or Orvis’ older Clearwater, the ridged blanks go straight through to production. Most rods, however, are sanded at this point. Orvis’ Rosenbauer explains that there’s no performance difference one way or another, but most customers now prefer “shiny rods,” so the manufacturers usually oblige."
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