To clean a brass effect fender, start by dusting it with a soft, dry cloth to remove loose debris. Use a mixture of warm water and mild dish soap on a soft cloth to gently wipe the surface, avoiding abrasive materials that could scratch the finish. For tarnished areas, a specialized brass cleaner or a paste made from baking soda and water can be applied with a soft cloth, followed by rinsing and drying thoroughly. Always test any cleaner on a small, inconspicuous area first to ensure it doesn't damage the finish.
Assuming you mean, are the words "clean those brass" adjectives, the answer is no, maybe, and yes Clean is a verb. Those is a demonstrative pronoun. (Some people might call this a form of adjective, as it is a modifier.) Brass is an adjective: a brass trumpet, a brass bookend. Note that brass is also a noun in some uses: the brass on that uniform is shiny, the brass in this orchestra is very good
Brass polishers use an abrasive and sometimes chemical agents that attack oxidation. The oxidation that occurs on brass related items is different than the oxidation that occurs on steel or iron. Answer, yes and no. Yes if you don't have a surface that your going to damage, (car fender). No if your looking to remove only rust from an antique without damaging other components of the item.
You can clean a brass telescope. Over a duration of time, brass starts to oxidize. To remove this, can use vinegar and salt. You can also use a concoction of chemicals that is premade, usually by a company that specializes in brass.
http://home.howstuffworks.com/how-to-clean-furnishings3.htm
There is an effective way to clean brass door knobs. The first thing they need is to determine if the knob is brass plated or solid. If it is plated, use caution in the cleaner that they use.
Brass will oxidize and turn greenish. Moen and Delta have PVD brass finishes which are more resistant to corrosion.
To clean brass, mix equal parts vinegar and water or use a commercial brass cleaner. Apply the solution to the brass using a soft cloth, rubbing in circular motions. Rinse with water and dry thoroughly. Avoid using abrasive materials that can scratch the brass.
Brasso and elbow grease.
Try a little WD40.
To clean brass handles effectively, mix equal parts vinegar and water in a bowl. Dip a soft cloth into the mixture and gently rub the brass handles to remove dirt and tarnish. Rinse with water and dry thoroughly with a clean cloth. Repeat as needed for stubborn stains.
Firstly, ensure the item you want to clean, is actually brass. If it isn’t brass, you could end up tarnishing it rather than cleaning. The easiest way to check is to see if a magnet sticks to it. If it’s real brass, the magnet will not stick. If it does stick – do some further investigating and don’t clean it until you’re sure of the metal. Don’t use anything too abrasive on your brass, if you choose to use wire wool, it will need to be a very fine grade. You could end up scratching the surface and causing damage. Try using cotton wool or a soft cleaning cloth to do the dirty work and use another soft cleaning or polishing cloth to get a bit of gleam on your item. visit kernowfurniture.co.uk/blogs/news/how-to-clean-antique-brass for more detail.
The workmen are brassing the elevator doors to make the metal look shiny and clean .