IPC OUTLOOK Logo
The Knowledge and Know-how Connection
Loading
IPC OUTLOOK Logo
February 10, 2012
Epoxy Bonding Problems on RoHS Boards
Ask the Experts
Shelf Life Before Conformal Coating
Board Talk
Four Techniques for Removing Solder Mask
Production Floor
Alternatives to Conformal Coating
Ask the Experts
Conformal Coating for Tin Whisker Management
Materials Tech
Problems with Bubbles in Conformal Coating
Ask the Experts
Contamination Prior to Conformal Coating
Ask the Experts
Measuring Conformal Coating Adhesion
Materials Tech
Can Conductive Epoxies Replace Solder?
Board Talk
Do We Still Need SMT Adhesives?
Board Talk
More Related Programs  »



Epoxy Bonding Problems on RoHS Boards
We are having problems with epoxy bonding to RoHS boards. Is there ...
Ultrasonic Cleaning Causing Damage
What method can be used to prevent damage to sensitive SMT components ...
Solder Deposits During Wave Soldering
During wave soldering, is there a possibility for solder to deposit on ...
Problems Hand Soldering 24 Layer Board
We are assembling a back plane board with 24 layers. We are ...
Component Damage From IR Reflow
We have an SMT package with J formed leads that crack at ...
Organic Flux Residue Concerns
What concerns should we have with reliability if we skip cleaning after ...
Alternatives to Conformal Coating
What are conformal coating alternatives to insulate solder joints and exposed conductors ...
Does Lead-free Flux Make a Difference?
Does using a lead-free solder flux really make a difference? Why not ...
Cause of Unusual Contamination?
We have 40 PCB assemblies with unusual contamination. Do you have any ...
Wave Soldering Problems
We are seeing many process defects that occur after wave soldering operations. ...
More Ask the Experts  »
Rigid Flex That is Built to Last
Rigid Flex That is Built to Last
Once you have made the decision to package your electronics with rigid flex, it makes sense to pick a production partner who can build it right.
Printed Circuits, Inc.

Conformal Coating & Connector Holes
Conformal Coating & Connector Holes
Is it possible to eliminate conformal coating from seeping into connector holes? How much coating residue is acceptable in the connector holes?
This program first published September 2009
At "Ask the Experts" we submit challenging questions to our panel of distinguished experts. You provide the questions and they provide the answers.

Ask the Experts Questions | Ask the Experts Panel
Submit A Questions | Join the Panel
Expert Panel contributors for this topic:
James Mahoney, Applications Project Manager, Quick Turn Flex Circuits LLC
Jade Bridges, R&D Manager, Electrolube Ltd
Steven Adamson, Market Specialist, Nordson ASYMTEK
Gary Bowman, , Krayden, Inc.
Chris Palin, European Manager, HumiSeal
Wayne Wagner, President, Krayden Inc.
Scott D. Szymanski, Global Marketing Manager, Nordson MARCH
Comments  »
Use the form below to submit a comment.
Conformal coating materials are designed to "wick" under parts and in between pins to provide a complete coat. This also can create issues with wicking into holes and into connector pins which can create functional and solderability problems.

Any coating residue in an area that requires soldering and or electrical contact can be problematic. I have found that with proper masking and using a spray application method I can control and eliminate the type of issue you are seeing by applying a light first coat. This will seal the area on a connector housing or in a masked area, subsequent coating can then be applied without the wicking into these areas.


Bert Furr, Benchmark Electronics
Submit A Comment  »
This comment is about the program:
Conformal Coating & Connector Holes

The is a general comment.
Your Name
Company
E-mail
Country
Comments
Discussion of pricing, recommendations for specific products or advertisements are not appropriate. All comments are reviewed prior to posting. You must include your full name to have your comments posted. We will not post your email address, we request your email address so we can notify you if your comments are posted.
Today's Sponsor
Today's Sponsor
IPC Member Spotlight  »
The Design Process Just Got Easier
The Design Process Just Got Easier
Sunstone Circuits, has released the newest version of their design software, PCB123. Bottom line, the design process just got easier.
Sunstone Circuits
Featured Sponsors  »
MSD Damage Causes Early Field Failures
MSD Damage Causes Early Field Failures
Components encapsulated in plastic or organic compounds are susceptible to moisture damage. So are PCBs, all can cause early field failures. Control MSDs per IPC J-Std-033b.1 and 1601.
Super Dry®
Printing Focused on Useful Technology
Printing Focused on Useful Technology
EKRA focuses on "Useful Technology" that provides real benefits characterized by their efficiency, ease-of-use, and reliability.
EKRA America
The Component Rework Experts
The Component Rework Experts
Rework of surface mount and through hole components can be a challenge. Our techs are ready to tackle your toughest rework projects.
Circuit Technology Center
The Design Process Just Got Easier
The Design Process Just Got Easier
Sunstone Circuits, has released the newest version of their design software, PCB123. Bottom line, the design process just got easier.
Sunstone Circuits
APEX EXPO® Keynote William Shatner
APEX EXPO® Keynote William Shatner
Solve manufacturing challenges while networking with hundreds of exhibitors and thousands of peers focused on design, manufacture, assembly and test. Keynote by William Shatner.
IPC — Association Connecting Electronics Industries
Perfect Kit for Replating Gold Contacts
Perfect Kit for Replating Gold Contacts
There's simply no reason to scrap circuit boards when they have contacts contaminated with solder. Restore them using the Gold Contact Plating Kit.
CircuitMedic image
IPC OUTLOOK Logo IPC — Association Connecting Electronics Industries
3000 Lakeside Drive, 309 S, Bannockburn, IL 60015
Phone: 978-478-5112 | Fax: 843-682-4255
Sandy Gentry, Editor | Kim Sterling, Publisher
About IPC Outlook  |  Contact Us  |  Privacy Policy  |  Terms of Use  |  Sponsorships