Chem-Wik Rosin 7-25L desoldering braid ensures fast and safe desoldering. A non-activated, white rosin flux (in conformance with MIL-F-14256F, Type R) is laminated onto the entire braid to protect against oxidation and promote solderability. Ultra-pure, oxygen-free, copper braid quickly and completely removes solder from circuit boards and components. Its fast wicking action protects components from harmful heat damage. Quickly and thoroughly removes solder. Optimized weave design for faster wicking and heat transfer. Minimal risk of heat damage to components and circuit boards. Coated with noncorrosive, halide-free, ultra-pure Type R rosin flux. Requires little or no post solder cleaning. Flux Type: rosin, Color: green, Braid Width: 0.075″ , Length: 25 feet.