Advanced, Proprietary and Patented i-Kote™ Solid
Dry Film Lubricant Eliminates Fretting Wear
Cost-effective compared to Silver plated, Dicronite™
or any other coated fasteners
Self Healing - Can be
re-used many times - effectively forever
more seized, galled or broken screws and high repair costs
coating will NOT decompose, flake,
delaminate or chip - ever.
|These fasteners are coated with a
patented smart, nanocomposite lubricant that adapts to being in
vacuum or exposed to atmosphere. It has a friction coefficient of < 0.01.
It does not absorb water vapor and many thousands of pumpdown and vent
cycles will not generate particulates caused by water vapor absorption in
high humidity conditions (a common problem with molydisulfide and other
vacuum compatible lubricants). High temperatures (exceeding those
encountered in any sputter deposition system) will not degrade it’s
performance. The coating binds at a molecular level and
exhibits excellent adhesion. It's self-healing and will not ever wear off during use. It does
not chip, peel or crack. It is virtually chemically inert, has a very low
vapor pressure and is UHV compatible. In short, it completely eliminates
all the use and maintenance problems and expenses associated with the use of
threaded fasteners in vacuum and operates reliably under all conditions.
|Vented fasteners are available. Be
aware that the vented fasteners have significantly less
mechanical strength and should not be used when high degrees
of mechanical stress are involved. Slotting the
threads to achieve venting results in the same general
degradation of mechanical integrity.
The real benefits of vacuum relieving a
fastener include preventing local high pressure that can
result in arcing and glow discharges and elimination of
multiple sources of virtual leaks that can limit ultimate
system base pressure and cleanliness and faster pumpdown
times. These benefits must be considered in contrast
to the potential problems caused by weaker fastener
strength, mainly - loss of reliable seal loading.
Since there is less bulk material in the fastener, it will
stretch more easily and be more likely to fail.
Don't use vented fasteners in locations
where reliability is absolutely necessary - like water to
vacuum or atmosphere to vacuum seals. Whenever
possible, components and systems should not rely upon vented
fasteners. Better the device itself should be vented.
Comparison to Other Coatings
Once used, the plating on silver plated
fasteners is broken. This is also true when MoS2,
gold, dicronite, WS2
and other surface treatments are applied. They are not reusable as many
assume. A used silver plated fastener will gall just
as easily as an uncoated one. A VacSmart™s with the nanocomposite coating can be safely used many times.
At a minimum, the i-Kote™ coating on
VacSmart™ fasteners will last 1.5X (usually many times better) than any
other available products.
Any part subject to rotary motion or sliding wear used
in a vacuum system is likely a good candidate for the application of the
nanocomposite solid film lubricant. It is superior to Dicronite,
molydisulfide and liquid lubricants. In fact the coating is
presently in use in many critical space applications.
The coating has been successfully applied to bearing
surfaces in rotary substrate fixtures, motion translation devices,
linkages and items like the camscrew used in our Kamlok™
fast target exchange mechanism (shown in photo).
Contact us to see if we can help you.