What
is Stabilant 22? 
Stabilant 22 is an initially non-conductive
block polymer which when used in a thin film between metal contacts becomes
conductive under the effect of an electrical field. This occurs at an
electric field gradient such that the material will remain non-conductive
between adjacent contacts in a multiple pin environment. In addition, Stabilant
22 exhibits surfactant action, as well as lubrication ability providing a
single component resident solution to virtually all contact problems.
When applied to electromechanical contactsStabilant 22 can provide the
connection reliability of a soldered joint without bonding the contact
surfaces.
Where
can Stabilant 22 be used?
Stabilant 22 can be used in all types of connectors,
at frequencies from to DC to several gigahertz, on
fader's or potentiometer's, or in non-inductive (non-arcing) power-interrupt
switches. The number of uses are almost limitless.
Is
Stabilant 22 just another contact cleaner?
No, Stabilant 22 is a resident potentially electrically active
material which through a synergistic combination of effects enhances
conductivity within a contact without causing leakage between adjacent
contacts. Thus large quantities of the material do not have to be "hosed"
on, as is the case with cleaners.
Is
Stabilant 22 cost effective?
As Stabilant 22 can be quickly applied to all contacts and connectors in
a system, the often difficult diagnostic determination as to which one of many
contacts are erratic, can often be eliminated. This can significantly reduce
service time in the field and in many cases eliminates the need to return
boards for shop service or remanufacturing. As any service manager knows, the
diagnosis of electronic problems, especially where intermittent failures are
concerned, is often much more difficult than the actual part replacement; as
well as requiring service personnel of exceptional caliber. In many cases the
use of Stabilants can thus increase the efficiency of existing staff as well as
allowing many connector harness related problems to be
handled at a much lower cost.
Many of our users have reported savings of from $250 to $3000 as a result of
using $3 to $5 of the material. In many electronic applications demodulation
(detection) of RF signals in connectors exhibiting thin film rectification
effects can either reduce the signal-to-noise ratio or introduce artifacts
which can disrupt data flow. Stabilants can cure these problems.
While Stabilants have demonstrated that they can cut the cost of both
shop and field maintenance; their use in the manufacturing of electronic
systems can speed up production as well as reducing rejections.
How
does Stabilant 22 work?
Contact failure is rarely caused by a single factor. Thus, treatments that
solve only one problem don't necessarily offer a reliable long term solution.
For example, cleaners do not prevent the re-entry of contaminants or the
reformation of contaminant films; nor do they offer any lubrication. They must
be used each time a connector gets dirty. Lubricants in themselves are rarely
cleaners. Corrosion inhibitors are neither cleaners nor lubricants and are
often specific to one type of metal or plating. Unsaturated oils used as
contact treatments can cross-link under the influence of elastomer or thermoset
plastic curing agents and accelerants.
While resident in the connector, Stabilant 22 performs several
concurrent functions. Its very presence in the contact gap will prevent the
entry of outside contaminants. It has sufficient surfactant action to lift
surface contaminants and hold them in suspension. In cases where corrosion
products are present Stabilant 22 will penetrate them and prevent
rectification effects. Due to its high dielectric constant it will act to form
a capactive layer which is in parallel with whatever residual resistance exists
in the contact increasing the passage of AC signals. Given sufficient DC bias
within the gaps of the contact the thin film of Stabilant will "switch",
conducting by quantum tunneling, and thus limit the resistance of the contact
to a serviceable level.
In
what forms is Stabilant available?
The Stabilants are available in several forms. As a concentrate (Stabilant
22), an isopropyl alcohol-diluted form (Stabilant 22A), and an ethyl
alcohol diluted form (Stabilant 22E). For example, a given size
container of Stabilant 22A will cost about one-fifth the amount of a
container of Stabilant 22 as it contains only one-fifth the amount of
the concentrate. Another form of packaging is available. Stabilant 22S
packages the concentrate such that it occupies one-fifth the volume of an
otherwise empty container. This allows the end-user to add his own diluant, and
thus saves the added costs of shipping the diluant (e.g.: isopropyl alcohol),
as well as allowing the end-user to use an alternate diluant such as one of the
Freon-based solvents.
In addition a 0.5 ml vial of Stabilant 22A is available for manufacturers
to include with digital cameras/lenses
What
is the difference in use of these materials?
Stabilant 22 is most useful where the
connections are out in the open - such as card-edge connectors or where the
lubricating properties of the material are useful -such as an aid to installing
microprocessor IC's or on switches. Where the connections are not too easy to
get at or where the user wishes to apply the material to something such as a
socketed IC (without removing the IC from its socket), it is easier to use the
alcohol diluted form (Stabilant 22A or Stabilant 22E). The
alcohol diluant serves ONLY to carry the concentrate into the connector.
What
packaging is available?
Many manufacturers make large volume purchases, diluting the material for
specific applicators used on their production lines. We can supply the
concentrate (Stabilant 22), in 0.5 mL, 15 ml, 5O mL, lOO mL, 25O mL, 5OO
mL and 1 Liter bottles. The dilute (Stabilant 22A or Stabilant 22E,
the latter which is available in a limited number of bottle sizes except on
special order), are available in 5O mL, lOO mL, 25O mL and 5OO mL containers.
We do not have a 1 liter container of the dilute as 500 mL is the largest size
bottle that can be shipped by air (in single or multiple packages) without
additional restrictions. We maintain our stock in depth and ship most orders
the next day that they are received. (On large quantities ,
more time may be required) For companies which want to use the material as a
stock store item, we can produce custom labels with your part or stock number.
The 15 mL sizes are in dropper bottles, and these are available on request for
the 50 mL sizes as well.
Custom labeling has been provided for many manufacturers who wish to assign
their own stock control number, or to distributors who wish to market the
product under their own logo. Obviously this requires purchase in of the
product in suitable quantities.
Is
it available in a spray can?
No. Why waste the material? We would like to think we are environmentally
responsible and safety conscious. This ruled out the use of either a
chlorofluorocarbon or highly inflammable mixture of butane and propane as a
propellant.
In addition even Stabilant 22A for example, has only about 7/1200th the
solvent impact as conventional contact cleaning solvents, over a three year
time span. As Stabilant 22 contains no solvent it has absolutely minimal
environmental impact and is, therefore, becoming the treatment of choice for
many service organizations!
Just
how much should be used?
Normally, a final film thickness of from 0.5 to 2 mils of the concentrate is
all that it necessary. In other words, you want just enough to fill up the
interstices between the contact's faces. When using Stabilant 22A, or Stabilant
22E, use enough so that once the isopropyl alcohol (or ethyl alcohol),
evaporates the desired 0.5 to 2 mil film of Stabilant 22 remains.
What
is the 15 ml service kit?
This was made up at the request of several manufacturers who wanted a standard
kit that they could issue to their service personnel. It consists of a 15 ml
dropper bottle of Stabilant 22A and some applicators, all in a small
capped cardboard tube that can be tossed into a tool box without damage. As
noted, we can provide these kits with special labels when large volume orders
are involved.
How
can I be sure that Stabilant works?
The best way to find out just how well it works is to try it out; that's why we
have samples available. Almost every service shop or manufacturer has equipment
available where the switches or connectors have become erratic over the years.
Use Stabilant 22/22A/22E on them and satisfy yourself. A word of caution. Don't try to evaluate Stabilant 22's
performance on brand new connectors. Instead, use it on connectors that are
corroded, or dirty or just plain unreliable. We are sure that any organization
dealing
with electronics will have at least one piece of unreliable equipment on which
the Stabilants
can be tested!
What
is the effect of Stabilant in Digital Cameras that use interchangible lenses?
Generally, it makes a better snd reliable electrical connecton between the lens
contacts and the camera body. The consequence is in consistant reliability in
exposures and focussing especially were
automatic settings are employed. The left picture shows a Nikon D70TM
camera and beside is a SigmaTM interchangible zoom lens.
Note that when you click on the bicture, the enlarged picture clearly shows the
contacts on the lens barrel.
The best way of application is to apply it to the electrical contacts in the
lens. It should not be applied to the mating contacts on the camera's body as
it is too easy to get an accumulation. We reccomend the use
of a MicrobrushTM or the equivalant. Avoid the use of swabs as they may not be lint free.
OTHER DATA (Excluded from
waiver at end of MSDS)
Heavy
Metals: D.W. Electrochemicals
Ltd. has a policy of not allowing any intentional addition of any heavy
metals,
such as lead, cadmium, mercury, or hexavalent chromium, or their compounds, to
be used
in inks
or in the labels on our packaging and requires the total concentration of these
materials,
if
present, to be so at a level of less than 100 parts per million and we so certify.
RoHS
Legislation Artical 4(1)
pertaining to Heavy Metals in Stabilants and other prohibited components:
D.W.
Electrochemicals Ltd. has a policy of not allowing any addition of any heavy
metals, such as lead,
cadmium,
mercury, or hexavalent chromium, or their compounds, to be used in the
Stabilants and
requires
the total concentration of these materials, if present, to be so at a level of
less
than 100 parts per million and we so certify.
Ozone
Depleting Chemicals: Because of our corporate opposition to the
use of ODC's either in the
manufacture
of, or as an inclusion in any of our products, D.W. Electrochemicals Ltd.
has
consistently refused to provide any of our products in aerosol spray packaging
and/or
to supply any of our materials diluted with any Class 1 ODC, and we so certify.
PCB's: We certify that this material has been
subjected to tests capable of detecting PCB's to a level
of less
than 2 parts per million and no PCB's have been found.
Packaging: New standards are
in place in an attempt to reduce the amount of plastics, tape
and/or
adhesives used and to ensure that our packaging
may be reused or recycled.
MSDS PREPARATION DATA
& EMERGENCY PHONE NUMBER
Prepared By: Wm Wright
Department: Engineering
Preparation Date: Aug 24th,
2005
Current Revision: Revision 0, for inclusion in web
site
Emergency Phone: (905) 508-7500
Emergency Contact: Wm Wright
Patented Canada 1987, US Patent 4696832.
Others Pending.
©1997 D. W. Electrochemicals
Ltd. This note may be reproduced or copied, provided its content is not
altered. The term "contact enhancer" © 1983 Wright
Electroacoustics.
NATO/CAGE Supplier code #38948
15 mL Stabilant 22 has NATO
Stock Number 5999-21-909-9981
MATERIAL SAFETY DATA SHEETS ARE AVAILABLE ON REQUEST.
D.W.
Electrochemicals Ltd. urges each customer or recipient of this MSDS to study it
carefully to become
aware
of/and understand the hazards associated with the product. The reader should
consider consulting
reference
works or individuals who are experts in ventilation, toxicology or fire
prevention, as necessary
or
appropriate to use and understand the data contained in this MSDS.
To promote
safe use and handling of this product, each customer or recipient should (1)
notify employees,
agents,
contractors and others who may use this material, of the information in this
MSDS and
any
other information regarding hazards or safety, (2) Furnish this same information
to each customer
for the product, and (3)
request customers to notify their employees, customers, and other users of the
product
of this information.
The
information and recommendations contained herein are based on data believed to
be correct,
however
no guarantee or warranty of any kind, expressed or implied, is made
with
respect to information and recommendations contained herein except where
certified.
HOME PAGE
COMPANY AND CREDO
LISTING OF MSDS's AND NOTES
TOP OF PAGE