The most common way to clean flux residues from a repair area is to saturate a cotton or foam swab with isopropyl alcohol or another cleaning solvent, and rub it around the repair area. While this may be adequate for no-clean flux, where the...

Flux removers (defluxers) are used to clean off flux and other contaminants left by manufacture, rework, or repair of printed circuit boards. Flux removers can be solvent based (e.g. isopropyl alcohol) or water-based, which are generally used...

Most contact cleaners are safe to use on printed circuit boards (PCBs) in electronic devices. Make sure the contact cleaner solvent is compatible with all components, connectors, and packaging by testing on a scrap part or inconspicuous area.

Hold object to be cleaned in vertical position so the solvent and soil can run off. Spray 4 - 6 inches (10-15 cm) from surface. Wash from top to bottom, allowing the liquid to flush away contaminants. For precision application, use with extension...

To improve the connection quality of an electrical contact or switch, you can remove oxidation or rust either mechanically and/or chemically. A brass or steel brush is the most common method of scrubbing off oxidation, although for sensitive...

A contact cleaner (also called electrical cleaner, switch cleaner, electrical contact cleaner, and specific for automotive repair, battery terminal cleaner) is a solvent cleaner designed to remove contamination from electrical contacts, the...

Generally, contact cleaners contain 100% solvent, which dissolves grease, carbon deposits, and other contamination, and allows it to run off. The solvent then evaporates, leaving a clean, conductive surface behind. Aerosol lubricants, like WD-40,...

Certifications are used to separate conformal coatings from general purpose varnishes and shellacs. There are dozens of user and industry specifications, but the two major certifications are most commonly referenced: IPC-CC-830B / MIL-I-46058C...

You may be required to remove a conformal coating from the PCB to replace damaged components or other types of rework. The basic methods as cited by IPC are: Solvent Removal – While most conformal coatings can be dissolved in solvent,...

Conformal coatings are generally very thinly applied, which provides the best protection possible, but minimizes heat entrapment, excess weight, and other issues. Typically, conformal coating is applied between 1 to 5 mils (25 to 127 microns)....