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Valve Oil,
Part I
Valve oil. That stuff in the
little bottles that brass players are always dribbling
into their horns. It’s all pretty much
the same, isn’t it?
No way,
buddy! Many
– maybe even most - brands of valve oil are nothing more
than cheap petroleum distillate and a marketing
campaign.
Which is shameful, because valve oil is super important
for your brass instrument. It’s what keeps
your
valves going up and down without hanging up through long
rehearsals and performances. It protects the metal surfaces
from wearing on each other. And, it helps keep valves
clean by preventing oil and dirt from clinging to the
metal.
So many choices…
Let’s take
a look at the valve oils you can find on the market
today. There are
roughly four types:
-
The
cheap smelly petroleum distillates mentioned
above. They do
a barely adequate job of lubricating your
valves. Many
house brands fall into this category. In most cases if the
music store's name is on the valve oil bottle don't buy
it.
-
The
second type of valve oil is a more highly refined petroleum
distillate which has withstood the test of time because it
works fairly well. Many of the best-known
valve oil brands fall into this category.
-
The
third type is oils specifically chemically engineered by
knowledgeable professionals to be valve
oil.
Blue Juice is an example.
-
The
fourth category is synthetic oils, such as Alisyn and Space
Filler.
Why do
we need different kinds of valve oil?
Instrument
manufacturers use different alloys in their
pistons. The
various valve oils react differently with the various
piston alloys, so what works well on one brand of
instrument might not work well on some
others.
Brand-new
valves have different lubrication requirements from old
worn-out valves. Even instruments of identical
brand and model might do best with different valve oils simply
because of wear on the valves. For instance Alisyn is very
thick and works quite well on old worn-out sloppy
valves. But it’s
far too viscous for many new, tightly fit
valves.
Try this
at home
Here’s an
interesting experiment for a rainy day: Clean your valves thoroughly,
and oil each of the three pistons with a different brand of
oil. Most likely,
you’ll be able to tell the difference in the feel of each of
the three valves.
The bottom
line? If you’re
using cheap valve oil, pitch it. A bottle of good oil costs
five bucks or less, so you might as well use
it. Clean
your valves, (it’s best not to mix oils) and experiment
to find out what works best on your
instrument.
Also, most
students need to use more of the stuff! Frequently when customers
complain that valves don't work the problem turns out to be
simply a lack of adequate oil. Beginning students should use
up close to an entire bottle by the end of the school
year.
Valve
oil, Part II: Rotary Valves
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