Weitzel, incidentally, is no fan of the
nylon-bristled brushes most cleaning machines are used with, saying
they're too coarse, too stiff, and too prone to damaging grooves. He
believes it's better to use a gentle, non-aggressive brush to apply
and spread the fluid, and to simply let the cleaner do its job
chemically. To this end, Weitzel recommends using only a carbon-fiber
brush with his fluid…this whole approach takes a little getting used
to, as you can't really scrub with these things—and besides, neither
the fluid nor these sorts of brushes seem keen on getting the entire
record surface wet. (Some manufacturers add “fotoflo” as a wetting
agent to help spread their fluids, but Weitzel believes it can leave
an unpleasant residue behind.)
Photo-Flo has been used in other cleaning
formulas as a “wetting agent” in an attempt to break down valence
bonds, lowering surface tension. Unfortunately, Photo-Flo leaves
behinds residue that is not only heard, but can be seen as well. This
wetting agent attaches itself to the cleaning agent, greatly hampering
its effectiveness. If the cleaning agent contains any phosphates or
trace minerals, they stay behind on the record surface. Quadruple
stage deionized water and low level surfactants are the correct way to
reduce surface tension when cleaning records. It should be noted that
lowering the surface tension of previously bound contaminates, these
contaminates become suspended in the fluid and are vacuumed away. No
volatile organic compounds or ozone depleting substance are used
making RRL fluids a true “green” cleaner.