WPA Brown Stuff
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Brown Stuff Contact Cleaner
- Use to renew dirty, scratchy and intermittant pots, switches, connectors, tube pins and sockets
- BROWN STUFF: this is an electronic contact polish, more or less, the purpose of which is to polish away oxidation (contact rust), and other stuff that reaches the contact via the air such as tobacco smoke, in fact any smoke even smoke from fire, and smog. It removes the oxidation, smoke or smog by cutting it away from the metal. “Contact cleaners” that are merely a liquid can at best clean some smog and dust. After cleaning switches and other electrical contacts with the typical “contact cleaner” the contact may seem clean for a few days or weeks, but if the problem was oxidation it will return fairly soon as oxidation, being rest, grows…as they say “rest never sleeps”
- Contact cleaners that are oily have that oil to protect the contact from air to prevent re-oxidation. That can work fairly well but WPA CLEAR STUFF is far superior in preventing re-oxidation.
- For BROWN STUFF to work, that is to polish away oxidation and stubborn dirt you have to “polish”. In the photos one can see the use a dremel tool with felt buffer on very low speed. One can also accomplish the “polish” action by operating the switch or pot back and forth many times (exercising), about 20 times, so contacts polish each other. That works really well. Tube pins and sockets can be cleaned together this way….just add BROWN STUFF in the tube sockets and insert-remove-re-insert 10 or 20 times.
- When polish is complete rinse with a few spritzes of Quick Dry Electrical Contact Cleaner (CRC brand part# 05103) caution: flammable QD Electronic Contact Cleaner is an automotive product and can be found at Auto Zone, Pep Boys, Home Depot or amazon). It’s just a physical rinse….doesn’t chemically remove much of anything except smog. After spritz of QD Electronic Cleaner I operate switch contacts another 10 or 20 times , then spritz again the purpose of the second spritz being to rinse out all or most of the WPA BROWN STUFF. (Believe it or not, you can leave BROWN STUFF in the switch and pay no penalty…it just keeps cleaning every time the switch is operated). Rinsing out all or most of the WPA BROWN STUFF is done to make things all clean for application of WPA CLEAR STUFF to act as a contact preserver/anti-oxidant. Compressed air is very handy at this stage of cleaning.
- After cleaning switch contacts, pots, faders, tube pins and socket, etc with BROWN STUFF followed by CLEAR STUFF the switch, pot etc will likely remain clean and smooth forever. If dirty sound returns you can try a second clean. In most cases when dirty sound returns that’s the sign that the switch, pot, etc needs to be replaced.
- Btw, BROWN STUFF is non-toxic.
- When using CRC-QD Electronic Cleaner (or any solvent based cleacer) assure good ventilation.
- Wipe any mess from above procedures with paper towel/rag wetted with common surface cleaner, like ammonia in water (for instance, Windex) or 99% isoporopyl alcohol.
- 1 ounce (used judiciously lasts a long time)
- Brand: WPA
- Product Code: WPA-CHE-Brown-Stuff-01
- Availability: In Stock
- $12.50 ea
Pro Audio Pot and Fader cleaning
Potentiometer and Fader Cleaning Pots (potentiometers)and faders often become so scratchy and intermittant that they can render a piece of equipment unusable. This is usually caused by either or both dirt and wear. Pots are made in both sealed and open types. The sealed types are usually well made and rarely get dirty but they can become scratchy from wear. They have to be opened to clean. Open type pots are easier to clean but are often of lower quality so they wear faster. The Holy Grail of audio pots and faders is the conductive plastic and cermet elements. When pots are made of either of these two ele..
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Pro Audio Switch Cleaning
Pro Audio Switch CleaningAs audio equipment ages all contact surfaces, that is switches and connectors, become oxidized and can develop a minutely thin coating of plain old dirt (airborne contaminates like tobacco smoke, other kinds of smoke, soot, smog and super-fine dust). This condition can render a piece of equipment intermittent of unusable. This can be very aggravating, especially if the unit is otherwise valuable or just valuable to you. There are many sprays on the market that claim to clean up dirty and oxidized switch contacts. Some of these work on very slightly oxidized and dirty contacts, but they are use..
$88.00
WPA Clear Stuff
Clear Stuff Contact Lube and ReNu WPA CLEAR STUFF applied without first applying BROWN STUFF can often clear up a noisy pot or switch on it’s own, so a good strategy is to try CLEAR STUFF first. If the problem goes away….you’re done. If the problem comes back that’s a sign that you need to do the BROWN STUFF treatment. Note on CLEAR STUFF: this is Miller Stephenson MS-739 which is only sold by the ½ liter and up….very expensive in those quantities. It’s a high tech chemical yet safe, but don’t drink it. It&rsq..
$12.50 ea