Conformal coating vs Potting Epoxy ??
Conformal coating vs Potting Epoxy ??
(OP)
With the use of LED lights booming lately, especially in the automotive industry.. I am seeking a solution for weatherproofing the LED circuit board arrays we build. Currently, we have been using a silicone conformal coating which is clear and does a decent job of protecting the circuit boards from the elements. However, is there such thing as a spray on coating which is 100% weatherproof?
Sometimes, a light assembly can fill with water due to faulty seal or gasket, and its important that our LED arrays are fool-proof and protected under all circumstances.
There are two different LED arrays we work with, one is standard fiberglass circuit board which is not flexable. We have been considering potting these with epoxy, but still want the ability to make repairs. Epoxy is very difficult to remove.
The other type of circuit board is flexible and white in color, and needs to be aesthetically pleasing. We are looking for a transparent coating that will allow the board to be submerged under water. It is important that the coat be flexible.
Is there such a beast?!?! Please help.
Sometimes, a light assembly can fill with water due to faulty seal or gasket, and its important that our LED arrays are fool-proof and protected under all circumstances.
There are two different LED arrays we work with, one is standard fiberglass circuit board which is not flexable. We have been considering potting these with epoxy, but still want the ability to make repairs. Epoxy is very difficult to remove.
The other type of circuit board is flexible and white in color, and needs to be aesthetically pleasing. We are looking for a transparent coating that will allow the board to be submerged under water. It is important that the coat be flexible.
Is there such a beast?!?! Please help.





RE: Conformal coating vs Potting Epoxy ??
Please do your techs a favor and don't use potting epoxy, it is horrible stuff.
Why spray on?
RE: Conformal coating vs Potting Epoxy ??
The most recent coating we will be testing with is listed as a Corona Coating made by MG Chemicals. It can be applied via brush or by dipping. I hope this provides better results.
The most important features are:
- water clear and will not yellow
- flexible
- circuit board protection from being submerged in water
I really do not want to pot the products with epoxy, especially since repairs are so difficult. I am hoping there are better solutions.
RE: Conformal coating vs Potting Epoxy ??
http://www.humiseal.com/coatings.htm
RE: Conformal coating vs Potting Epoxy ??
I'm interested in what you come up with, though...
Dan
Owner
http://www.Hi-TecDesigns.com