Abstract: A method of coating a fishing fly to improve the durability and wetting character of the fly. The coating is applied using gas deposition, encapsulating the fly with a water barrier while preserving its micro-details. The typical coating is odorless and colorless, and increases the longevity of the fly. The wetting character imparted by the method results from the choice of gas deposited on the fly. In coating a dry-type fly, the method uses a gas that will make the fly hydrophobic so that it floats after a significantly greater number of immersions than an uncoated fly. In coating a wet-type fly, the method uses a gas that will make the fly hydrophilic so that it submerges in less time than an untreated fly.

Abstract: Apparatus and method for electrostatically depositing a layer of particulate material on a substrate surface from a gaseous suspension of particulate, thermoplastic material. Classifying means removes oversized particles from a supply of particulate, thermoplastic material and feeds properly-sized particulate material to a metering feed device. A pressure responsive sensing means is associated with the metering feed device, and energizes a control circuit associated with the classifying means to direct properly-sized particulate material from the classifying means into the metering feed device to maintain a substantially constant, predetermined amount of properly-sized particulate material in the metering feed device.