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SOUND SUPPRESSOR MODEL BLACKSIDE-40
ARTIFICIAL ENVIRONMENT MATERIALS
Water: Water is the most effi cient medium and provides the greatest
degree of reduction through adsorption of heat in the phase change pro-
ces. However, we discourage the use of water except in an emergency.
Products of combustion of smokeless powders contain oxides of nitrogen
which combine with water to produce nitric and nitrous acids. These acids,
in time, will erode aluminum, including through the hard anodize outer tube.
Water itself will slowly corrode aluminum. If water is used, it is important
to blow the suppresor dry with compresed air at the end of the day. Water
substitutes include bodily fl uids, such as saliva.
Oils: Second only to water in effi ciency, light oil lasts longer than
water (perhaps 3 magazines). Depending on the oil, there may be slight
to moderate smoke produced. The Tefl on-based and synthetic oils tend to
last longest and produce the least smoke.
Greases: These are the longest lasting (generally over 3 magazines),
do not leak at all, and do not evaporate with time. The effi ciency is similar
to (or minimally less than) oil, and grease is most apt to smoke and splatter.
The best greases for suppression have a low "drop point" (melting point),
such as Lubriplate F-105 and FML-2. Standard automotive chassis lubri-
cant is considerably less effi cient, and of the automotive greases, synthetic
greases are by far the best. One outstanding synthetic automotive grease
is Mobil Premium Synthetic, which may not be available in all states.
Vaseline: This is listed separately, and it may well be the best of the
greases available. Of the greases, it provides one of the better effi ciencies
(moderately low drop point) with little or no smoke. Its only disadvantage
is the lack of a good delivery system (no long nozzles on the tubes, not
available in an automotive grease gun cartridge), and it must be installed
by spooning with a stick applicator.
Wire-pulling lubricant is used by a number of clients and appears to
be both popular and easy to instill.
This suppressor does not require much maintenance. Because of the
use of artifi cial environment technology (particularly when using grease or
oil), there is only minimal carbon deposition. Further, a small amount of
carbon remaining in the suppressor is benefi cial to operation.
As a rule, Gemtech reccommends against any effort at cleaning this
suppressor other than cleaning the mounting threads and L.I.D. with a
hydrocarbon based solvent. Neglect is far less harmful than improper
ROUTINE CLEANING
P.
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