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Questions tagged [conformal-coating]

Conformal coating is an insulating material applied to PCBs to protect against damage to the electronics. You can use this tag for questions about protecting PCBs with conformal coating and for issues with debugging/editing PCBs which have already been conformal coated.

1 vote
1 answer
1k views

Conformal Coating Affecting Inductor?

Question: Could conformal coating affect the properties of an inductor by adhering to its windings? Context and problem: I have a simple boost regulator circuit based around the TPS61230 IC. It ...
archaeopteryx's user avatar
0 votes
2 answers
523 views

PCB coating for a high temperature environment

What PCB coating is good for a high temperature environment (my environment is about 30-70 C), and is available in a spray can or so that is easy to implement without need of a device/machine?
Angs's user avatar
  • 3,305
3 votes
1 answer
172 views

LiFePO4 lithium iron-phosphate cells - OK to dip?

I want to try epoxy-dipping a PCB with an 18650-sized LiFePO4 cell. This is for a low-power application and is slow-charged, so thermal is a non-issue. Before doing anything unforeseen dangerous, is ...
rdtsc's user avatar
  • 16.3k
2 votes
2 answers
262 views

If my electronics are outdoors in a ventillated NEMA 4 enclosure, should I conformal coat my circuit boards?

I'm considering putting a circuit board in a ventilated NEMA 4 enclosure outdoors. I'm a little concerned about humidity and condensation inside the enclosure. Do I need to conformal coat my circuit ...
Stephen Collings's user avatar
0 votes
1 answer
5k views

Waterproofing electronics by dipping into polyurethane or lacquer

I've been looking at and thinking about a few related topics... https://arduino.stackexchange.com/questions/9163/using-arduino-for-industrial-process Reliability of the Arduino platform for ...
Gabriel Staples's user avatar
5 votes
2 answers
1k views

Waterproof enclosures

I have a simple farm gate monitor which I'd like to put in a rugged waterproof enclosure to keep it dry enough to operate outside for approximately ten years with no maintenance other than the ...
Richard's user avatar
  • 51
1 vote
1 answer
414 views

Coating a soldered connection on a small circuit board

I have a small PCB, about the size of a quarter and having a Bluetooth chip on it. I have 4 wires soldered to the board. 2 of which are for a 3.7 Volt battery connection and 2 are to connect a small ...
Jet59black's user avatar
4 votes
3 answers
4k views

PCB opaque coating for anti reverse engineering?

Im trying to find a coating for my PCB in order to protect it from reverse engineering. I want it opaque, non-conductive and with a low thermal resistance. Basically I do not want that someone ...
eduardo's user avatar
  • 87
2 votes
1 answer
737 views

High failure rates after pcb coating using DC 3140 RTV

We have been protecting PCBs using Dow Corning 3140 for many years now without any problems. Last couple of months however, one board after the other is failing after coating. We can't think of any ...
Marc Moolenaar's user avatar
7 votes
2 answers
813 views

Conformal coating and micro SD card sockets

I have a embedded computer design which uses a low profile micro sd card socket as an extra option in addition to an on board solid state disk as storage/booting mediums. In manufacture the board is ...
Steinar's user avatar
  • 768
9 votes
2 answers
745 views

Pour-and-drain conformal coating as an alternative to potting

Is there a standard process to pour conformal coating, similar to potting, but then drain the excess? The benefit of draining the excess is to reduce weight and get better cooling. From my limited ...
JimFred's user avatar
  • 703
4 votes
3 answers
4k views

Removable/soluble potting compound?

Are there removable/soluble potting compounds that are moisture-proof yet removable without damaging electronic components? I've been able to plunge-mill potted devices to get near enough to ...
JimFred's user avatar
  • 703
2 votes
3 answers
454 views

conformal coating

What's the best way to remove this??? I have tried alcohol and simple solvents to no
Thomas Johnson's user avatar
20 votes
7 answers
54k views

What's the best way to protect a board from corrosion in a hot/moist environment?

Some of my projects need to live outside for long periods. Sometimes, moisture gets into the enclosures. That means that a circuit board might be sitting around in contact with water for hours on ...
edebill's user avatar
  • 2,519
15 votes
10 answers
2k views

Does this exist: Insulating material to cover circuit

For example when you build a circuit you have the board and the components between them is air. Is there a clay like material that will act like air does? Application: you could bundle simple ...
stuckie27's user avatar
  • 407

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