Introduction: Easy Waterproofing Electronics

Picture of Easy Waterproofing Electronics

Hey! everyone My name is Steve 19 year old from India .

Today i'm going to show yo how to waterproof you pcb board .

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Step 1: What You Need

Picture of What You Need
  • Hot Glue Gun
  • Heat Shrink Tube

Get A Hot Glue Gun Cheapest click

Step 2: What You Need to Do

Picture of What You Need to Do

Just Follow the Step

  • cover all the surface with Hot Glue
  • Cover The Board with Heat Shrink Tube
  • USE a Lighter to Shrink The Tube

Step 3: You Are Done Now

Picture of You Are Done Now
  • After finishing It will look Something Like This

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Comments

ArifSae (author)2017-01-17

good one, I did something similar to my HEATING up resistor! :P I realize what you did and why. people are so much worried about heat same as they got worried about grounding in wiring, which is alien concept in asia :P so rock on. Although do give attention to things pointed out but take too much pressure. With love from Pakistan

ArifSae (author)ArifSae2017-01-17

* but dont take too much pressure

silvertinkerer (author)2016-11-05

You can do better by covering the board in an epoxy. You can do a thin coat so it will still get rid of heat, but will still be water tight. I do this for my flash drives that I steampunk. https://www.instructables.com/id/How-to-make-a-steampunk-USB-flash-drive/

but this is cheep way i think

I keep 2 part epoxy on hand at all times. For small uses like this it really should be the same small cost. The epoxy is not going to be affected by heat from the electronics while the hot glue is. Worst case the hot glue melts & you damage the board you are trying to protect, due to heat or the water you are trying to protect it from. I have tried this method before switching to the epoxy for this very reason.

ArifSae (author)silvertinkerer2017-01-17

this fear for heat up electronics felt like Y2K bug, remember those, got fixed by simple update. this image is not of something getting hot, and if someone is trying to waterproof electronics thats giving out that much wattage, perhaps he does need to learn by hard way :P

ArifSae (author)ArifSae2017-01-17

epoxy idea is also good

I use clear 2 part epoxy on my pen drives, coat them then stick the case back on..man are they protected after that

thanks for your information.
but my board does not heat up it's soo efficient.

tutdude98 (author)2016-11-10

Clear nail polish or silicone would also be good, i usually put silicone or nail polish and then put some heat shrink or pvc shrink on it

AndrzejR (author)2016-11-10

There's a product called "Liquid Tape", its meant as electrical tape, but would be great for this type of a purpose, components/situation permitting. I've used it to fix frayed cables as well as reattach (glue together) really thin/tiny wires where proximity to other plastics/etc make soldering not an option.

Bo HolboR (author)2016-11-07

Come on guys.

You don't need to put him down like that!!

While i do agree that this method is not a good idea in ALL situations. (especially if the boards are to be used somewhere hot)

I have done this many times myself:-)

One warning though!

Don't do this if you want to place the board outside. The shrink tube/hot glue combination will NOT survive the constant temperature changes combined with rain..
I learned that the hard way!

In this case, you should use caulk (silicone rubber) instead of hot glue.

Thanks for the instructable Steve. And keep it coming!!


Best regards
Bo Holbo

silvertinkerer (author)Bo HolboR2016-11-09

I am not trying to bring anyone down, I just think there are better ways of doing this. I also have used this method in the past & have seen that is not for every occasion.

I think the biggest thing is he seems to not want to believe others about how much his board should heat up. All electronics will produce heat, some lots more than others. If this works for this board great, but it will not work for all.

Thanks man !

DavidS531 (author)2016-11-08

Good thinking, nice job, something I will keep in mind, I have been considering WPing an old metal detector for underwater use. Sounds like a good place to start, thanks. Semper Fi

you are most welcome

warhawk8080 (author)2016-11-08

I use clear nail polish, or the fast dry minwax polyurethane in the spray paint can (stuff they use to protect hardwood floors)
Apply a coat, let it dry, then maybe 2-3 more coats and voila...instant conformal coating and no need to heatshrink or use hot glue

mahdiy7 (author)2016-11-05

I think you will get in trouble by this because of board heating.

it depends

no it doesn't... everything which can heat up on a board, won't be able to dissipate that heat anymore... you'll break your electronics...

that board does not heat up man

That buck regulator (PT4115) and those resistors on your board sure will... This is a simple enough DC DC conversion going on here and you can probably get away with it, but generally speaking, PCB boards are not to be glued shut to "waterresist" them!

Man! I used this method over 2 months and it's works just fine for me no issues with it .

sumondigi (author)2016-11-05

good for basic usage.thanks for sharing.

you are most welcome

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