Wayne Wagner

Wayne Wagner has submitted responses to the following questions.

Mixing Silicone and Acrylic Conformal Coatings
The main problem is that cc's of different chemistries should not be considered interchangeable. If someone used silicone to begin ...

Conformal Coating Recommendation
The very first aspect to review is if the CC will be in contact or over the LED.This is because ...

Epoxy Wicking up Wire Insulation
Higher Viscosity epoxy. Or softer hardness. ...

Conformal Coating Over Heat Sinks
Conformal Coatings are usually 2-6 mls. This would have very little effect on the heat dissipation. However in a perfect ...

Glued SMT Components Falling Off
First check the cleaning process. There could be mold release left on the capacitors. ...

Dewetting of Acrylic Conformal Coating
Dewetting is directly related to contamination. Many boards are made with a release coating that needs to be removed prior ...

Uneven Conformal Coating
Washing the boards should get rid of any incidental contamination in the surface so the initial cleanliness may not be ...

Exposed Leads on Conformally Coated Boards
Yes, it is recommended. The exposed area may not be as sensitive as other areas in the board however they ...

Conformal Coating Over No-Clean Flux
It should not have any issues. If the coating of selection is not adhering most likely it will be a ...

Conformal Coating Cross Contamination
Acrylic and Polyurethane. ...

Conformal Coating and Moisture Absorption
A protective layer of conformal coating will indeed expand the life expectancy of an electronic board that is then exposed ...

Problems with Bubbles in Conformal Coating
There are three main causes for bubble generation on solvent based coatings: Air entrapment, Solvent flash-off and Too fast cure ...

Affects of Silicone Migration
The use of silicones for electric and electronics protection is as old as some military application from the late 1940's. ...

Conformal coating and connector holes
The approach to this problem is the correct application selection, and second the viscosity of the material selected. Selective coating ...

Conformal Coating & Humidity
In general a good conformal coating should be able to protect electronics in highly humid environments. Silicone excels in this ...