Techspray desoldering braid (wick) is pre-fluxed copper braid that is used to remove solder, which allows components to be replaced and excess solder to be removed. Rosin flux coated braid. Fastest wicking action. - Techspray wick is available in static dissipative bobbins (except where indicated) for static sensitive environments. For the fastest wicking action, rosin flux coated braid is ideal for high volume PCB production/repair environments.