From small dings to major dents, brass instruments are prone to this type of damage. When the valves are properly aligned, the instrument is more playable and easier to control.ĭent Removal – One common and important brass repair is dent removal. Valve Alignment – A valve alignment is a precise adjustment made to ensure that the instrument’s valves are aligned properly with the openings of the valve casings. The bubbles caused during ultrasonic cleaning can accelerate the damage of red rot if it already exists within an instrument, so ozone and chemical cleaning are safer alternatives for older brass! If you have an older brass, however, you may want to consider our ozone cleaning option or mild chemical clean. An ultrasonic cleaning helps to break down these deposits without scrubbing, preventing the possibility of scratches from brushes or other cleaning utensils. Instead of an intensive brass repair or valve replacement, the solution may simply be an ultrasonic cleaning. If there is sticking or you are having other issues with your valves, it may be due to deposit build up inside of the instrument. Ultrasonic cleaning, however, is a great cleaning option for brass instruments. Internal Cleaning Service – Brass instruments have traditionally been cleaned by a chemical clean. The following instruments are brass instruments that would require brass repair: These features enhance the likelihood of a longer life for your instrument, and should be considered when purchasing an instrument.Brass instruments are wind instruments that are typically made of brass and that produce sound through lip-vibration. Yellow brass is most susceptible, so parts are often made of gold or red brass or nickel silver. Some parts are made to be resistant to corrosion by using certain alloys. Check with your technician to be sure that these protective steps are followed. Further protection is offered by oiling critical parts. After a cleaning with any acidic solution your instrument should be acid-neutralized, rinsed thoroughly, and dried completely. Periodically, remove the tuning slide and run a flexible cleaner, or snake, through the mouthpipe or leadpipe of your instrument, rinse the pipe with clean water, and let dry before reassembly. Empty the water out of your instrument right after playing and oil it before putting it away. Brush your teeth before playing if possible, or even simply rinse your mouth well before playing. Avoid eating right before playing, and especially drinking acidic drinks such as coffee, tea, sodas, lemonade, and so forth. You can help prevent it by reducing the acids you introduce into your instrument.
#Remove red rot brass Patch
If it is localized then you may be able to patch the part and extend its serviceable life. Once you have Red Rot, there is nothing much you can do about it. There are also acids used in instrument cleaning procedures. But acid levels can be increased by consuming certain foods, especially sodas. There is acid in one’s breath, naturally. Copper is more resistant to reacting with these mild acids. The acid reacts with the zinc and causes it to come out of the brass. Red rot is caused by a reaction with acidic solutions, usually the aspirants from the player’s mouth. You can put a probe on the spot and push all the way through without effort. It is identifiable as a reddish patch on outside of the tube, roughly circular, with a pin-point dark spot in the very center.Īt this spot the alloy has failed completely, leaving a weak structure of copper behind. In this case, the loss of zinc from the brass is substantial and throughout the thickness of the part. True Red Rot is the complete breakdown of the alloy, and it occurs from the inside of a tube and proceeds outward. However, sometimes the de-zincification is extensive. Only a very thin layer of zinc has corroded away, and the part will likely continue to perform well. If this happens on the surface of the part it is relatively harmless. As the alloyed metal, most often zinc, is corroded out of the brass, a lattice-work of copper is left which is reddish in appearance. Red rot is found in brasses, which are alloys of copper and other non-ferrous metals, such as zinc. However, this loose usage covers two distinct but related conditions, surface corrosion and deterioration of the alloy due to de-zincification. “Red Rot” is commonly used to refer to any reddish patch of corrosion on a copper-based alloy, such as brass.
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