R.A.L. Audio Services
    Shop by Brand (click here) What Goes In... Comes Out!
What Goes In... Comes Out!
 Reset 
 
Search for Stabilant products. Advanced Search

Call us Toll Free at 866-455-3997

We accept Visa, Mastercard, Discover and American Express
We accept Visa, American Express, Discover and Mastercard
 Home  Recording  Rental  Modifications  Installation  Leasing  Policies  Contact  About  Login  

Stabilant 22 Contact Enhancer Application Notes

App. Note 34 - Solder-flux & Resins

What problems can be caused by solder-flux reside?

The removal of solder-flux from printed circuit boards is essentially one of washing the board with either an organic-solvent or water based cleaning solution. With the increasing limitations on organic-solvent-systems that are imposed by environmental considerations, the water-based-systems are starting to dominate flux-removal processes. Whichever process is used, it is generally involves a dissolving/dilution/flushing process where the flux is dissolved and dispersed within the flushing-solvent through the action of one or more surface-active agents.

But so long as electrical components and connectors are made of more than one part, there will be minute gaps between these constituent parts, or even between the components and the circuit-board itself. These gaps often form traps for some the flux-bearing cleaning agent resulting in small residuals of flux being left in place when the solvent/water evaporates.

It is not too uncommon to find connectors and/or switches where these minute flux residues are either are waiting to migrate (the moment a vehicle for their movement is introduced) or have migrated onto the contact surfaces. The problem caused by this condition can be identified where the initial treatment does not solve the problem, and the treatment must be repeated in order to get the contact to operate reliably.

The mechanism should be obvious. If the treatment involves the minimization of the amount of solvent, it may simply soften and mobilize some of the residual flux, re-depositing it on the surface of the contact where it will cause a problem once more,

Thus, some contact faults can be cured by a thorough cleaning using an aggressive solvent or solvent/surfactant involving the massive dilution of any flux residues. But this process may require solvents that are environmentally unacceptable.

Much the same mechanisms can exist with airborne contaminants such as wood resins, or even the tar and nicotine from cigarette smoke. The condition can be aggravated by the placement of the connectors in the path of the airflow used to cool the electronic equipment. In addition, certain types of closed-back-end push-button switches have developed a bad reputation based on their "inhalation" of contaminants, because of the pumping-action that occurs when they are released.

Can the use of Stabilants solve these problems?

Yes. Once it is recognized that a contaminant-migration condition exists there are three alternatives that can be used.

The first involves use of substantially more of the Stabilant than would normally be required, in order to flush the contamination from the contact area. Besides being wasteful in those cases where the flushing action is not needed, there are some resinous deposits which are very slow to dissolve.

The second alternative requires a repetition of the Stabilant treatment some hours or days later. The initial treatment with Stabilants will soften and lift contaminants which would not be removed except by the use of aggressive solvents or cleaners. The additional Stabilant treatment will normally carry this softened residue away, resulting in reliable operation of the contacts as well as protection from further occurrence or airborne-contaminant-based problems.

The third alternative requires a thorough pre-cleaning of the connector with an aggressive solvent which will remove all traces of the flux or resinous contaminant. The use of Stabilants will then provide long-term protection against contaminants as well as the other conditions which cause connector malfunction.

These connector-failure-modes are, fortunately, rather uncommon. Proper record keeping can be of great benefit in identification of these anomalies. Once a consistent pattern of failure is found involving this type of contamination, it's usually simple to select of one of the alternatives as a dedicated treatment.

Revision 2


Stabilants are a product of Dayton Wright research & development and are made in Canada

NSCM/Cage Code - NATO Supply Code 38948

15 mL of S22A has NATO Part # 5999-21-900-6937


The Stabilants are patented in Canada - 1987; US Patent number 4696832. World-wide patents pending. Because the patents cover contacts treated with the material, a Point-of-sale License is granted with each sale of the material.

MATERIAL SAFETY DATA SHEETS ARE AVAILABLE ON REQUEST


Stabilant, Stabilant 22, and product type variations thereof are Trade Marks of D.W. Electrochemicals Ltd.

Copyright 2003 - D.W. Electrochemicals Ltd. This note may be reproduced or copied, provided its content is not altered. The term "contact enhancer", 1983 Wright Electroacoustics.


NOTICE: This Application Note is based on customer-supplied information, and D.W. Electrochemicals is publishing it for information purposes only. In the event of a conflict between the instructions supplied by the manufacturer of the equipment on which the Stabilant material was used, and the service procedure employed by our customer, we recommend that the manufacturer be contacted to make sure that warranties will not be voided by the procedures.

While to our knowledge the information is accurate, prospective users of the material should determine the suitability of the Stabilant materials for their application by running their own tests. Neither D.W. Electrochemicals Ltd., their distributors, or their dealers assume any responsibility or liability for damages to equipment and/or any consequent damages, howsoever caused, based on the use of this information.

Stabilant, Stabilant 22, and product type variations thereof are Trade Marks of D.W Electrochemicals Ltd.

 Contact Us 
Shopping Cart more
  View detailed Shopping Cart contents.0 items
Stabilant
Stabilant 22 Contact Enhancer

Stabilant 22 Contact Enhancer

We carry the complete line of Stabilant products. Looking for something not listed here? Please contact us.
Stabilant 22
APPLICATION NOTES
1. Electronic Equipment
2. Computer cards
3. Schadow switches
4. Mic connectors
5. RTS & Dual plug patch bays
6. Biomedical Electronics
7. Computing & Peripherals
8. Cable TV
9. Robotics
10. Environmental Impact
11. Recording studios
12. Broadcast equipment
13. Mobile Radio
14. Educational computing
15. Stereo systems
16. Aid to IC insertion
17. Navigational equipment
18. Card edge conn. problems
19. Complex process control
20. Automotive service
21. Gold plating/solder alloy
22. Very high humidity
23. High current thermal runaway
24. Car stereo systems
25. Plastic element pots.
26. Farm machinery & trucks
27. Model & hobby
28. RF case seals
29. Outdoor environments
30. Computer crashes
31. Relays & switches
32. Silicone problems
33. Tin-plated contacts
34. Solder flux & resin residue
35. Post application color tinting
36. Aircraft connectors w/ flurosilicones
37. Avoiding unsafe solvents
38. S22 R&D Design Goals
39. Stabilant use on PLCC's
40. Sensor problem solution
41. Repair of flood damage
42. Marine electrical & electronics
43. All Cameras & Video Equipment
44. SCSI removable SCA drives, caddies & connections
45. Home Theater & Computer Connectors

Some of these application notes are repetitive of material in other application notes. We realize this. But some were written as a reference to a contact problem in a particular field or application.

NOTICE: This data has been supplied for information purposes only. While to our knowledge it is accurate, users should determine the suitability of the material for their application by running their own tests. Neither R.A.L. Audio Services, D.W. Electrochemicals Ltd., their distributors, or their dealers assume any responsibility or liability for damages to equipment and/or consequent damages, howsoever caused, based on the use of this information.
Product Categories
 Audio Services
 Used Equipment
 Stabilant 22
 Accessories - Misc.
 Acoustical
        Treatments

 Bass Management
 Cable / Wire /
        Connectors

 Cases / Racks /
              Covers

 Consoles & Mixers
 Crossovers
 Digital Audio
 Direct Boxes / DI's
 DJ Stuff
 Guitars / Basses
 Guitar / Bass
        Accessories

 Headphones
 Headphone Amplifiers
 Microphones
 Microphone
              Preamplifiers

 Microphone
        Accessories

 Power Amplifiers
 Power Supplies /
              Conditioners

 Re-Amplifiers
 Replacement Parts
 Rigging / Safety
              Cables

 Signal Distribution
 Signal Processors
 Speakers / Monitors
 Speaker Management
 Splitters &
              Isolators

 Stage Lighting /
              Trusses

 Studio Lighting
 Sync's / Clocks /
              R.C.s

 Tape Recorders
 Test Equipment
 Wireless
View All Specials
View Latest Additions
View All Products By:
Category or Manufacturer
Stabilant 22
REVIEWS
Over the years, Stabilant 22 has been highly parsed in publications that target a wide range of electronics applications including:
* Andrew Marshall's Audio Ideas Guide
* BYTE Magazine (7 articles)
* Windows Magazine
* Q.S.T. Amateur Radio
* Model Railroads (2 articles)
* Motor Magazine
Stabilant 22
TECHNICAL NOTES
1. MSDS - Stabilant 22
2. General Information
4. MSDS - Stabilant 22A
5. MSDS - Stabilant 22E
9. MSDS - Stabilant 22L
20. Military Applications
21. Elastomer Compatibility
22. Effectiveness of Stabilants
24. Connector Harmonic Distortion
39. Signal rise time

There are gaps in the sequence numbers below because some Technical Note s were written by the manufacturer for specific companies and are confidential.

NOTICE: This data has been supplied for information purposes only. While to our knowledge it is accurate, users should determine the suitability of the material for their application by running their own tests. Neither R.A.L. Audio Services, D.W. Electrochemicals Ltd., their distributors, or their dealers assume any responsibility or liability for damages to equipment and/or consequent damages, howsoever caused, based on the use of this information.
Stabilant
Stabilant 22 Contact Enhancer

Stabilant 22 Contact Enhancer

We carry the complete line of Stabilant products. Looking for something not listed here? Please contact us.

Get Adobe Reader All prices in US dollars.
Sales tax will be added to all purchases delivered in California.
Prices, products, and specifications subject to change without notice.
All trademarks and registered trademarks are owned by their respective companies.
We accept Visa, Mastercard, Discover and American Express