Abstract: A fiber optic component cleaning device includes a body, a feed spool mounted for rotation in the body, a take-up spool mounted for one-way rotation in the body and a central support assembly. A plunger is mounted for movement in the central support assembly and a drive is operably connected to the take-up spool and to the plunger. A cleaning material is wound onto and fed from the feed spool and to the take-up spool. A reservoir assembly is mountable to the body to apply a cleaning solution to the cleaning material.

Abstract: A fiber optic component cleaning device includes a body, a feed spool mounted for rotation in the body, a take-up spool mounted for one-way rotation in the body and a central support assembly. A plunger is mounted for movement in the central support assembly and a drive is operably connected to the take-up spool and to the plunger. A cleaning material is wound onto and fed from the feed spool and to the take-up spool. A reservoir assembly is mountable to the body to apply a cleaning solution to the cleaning material.

Abstract: A water soluble, non-ionic masking agent is used in the manufacture of printed circuit boards. The masking agent masks portions of the circuit board to prevent adhesion of solder, flux and the like. The masking agent includes a water soluble non-ionic binder resin, a cellulosic non-ionic filler, a non-ionic surfactant, at least one non-ionic associative thickener, and deionized water. The masking agent material is readily removed from the circuit board after manufacture and does not render further wash water processing ineffective. The masking agent is non-ionic, and thus does not agglomerate or clump downstream ion-exchange or filtration media.