« previous next »
Pages: [1]

Author Topic: Electric coil potting compound  (Read 4982 times)

Nick1911

  • Administrator
  • Senior Member
  • *****
  • Posts: 8,492
Electric coil potting compound
« on: February 22, 2010, 01:07:00 AM »
Does anyone have any recommendations for a potting compound to be used on electrical coils?  (IE: solenoids, motor windings, transformers).  I have a request out for more information on a transformer varnish that's sold in small quantities, but I haven't heard anything back.  =|  I figured someone here might know something about the topic.

Thanks!
Report to moderator   Logged

KD5NRH

  • friends
  • Senior Member
  • ***
  • Posts: 10,926
  • I'm too sexy for you people.
Re: Electric coil potting compound
« Reply #1 on: February 22, 2010, 06:20:45 AM »
Avoid this.

How tough do you need it to be?  I've used liquid electrical tape, or hot glue if I didn't have a problem with the inevitable lumps.

Report to moderator   Logged

280plus

  • friend
  • Senior Member
  • ***
  • Posts: 19,131
  • Ever get that sinking feeling?
Re: Electric coil potting compound
« Reply #2 on: February 22, 2010, 07:34:49 AM »
I looked under "varnish" in the Grainger catalog and they may have something you can use.
Report to moderator   Logged
Avoid cliches like the plague!

Jim147

  • friends
  • Senior Member
  • ***
  • Posts: 7,609
Re: Electric coil potting compound
« Reply #3 on: February 22, 2010, 10:27:48 AM »
Report to moderator   Logged
Sometimes we carry more weight then we owe.
And sometimes goes on and on and on.

BAH-WEEP-GRAAAGHNAH WHEEP NI-NI BONG

Nick1911

  • Administrator
  • Senior Member
  • *****
  • Posts: 8,492
Re: Electric coil potting compound
« Reply #4 on: February 22, 2010, 10:34:04 AM »
That's what I'm looking for, Jim.

I just got off the phone with Motion Industries.  They stock the product and sell to the general public.  Think I'll run up there over lunch.  =)

I've called a ton of suppliers around town.  Thus far all of them either only sell a case of 12, or don't sell to the general public.  I'll give Bernie Electric a call too.

Thanks!
Report to moderator   Logged

Jim147

  • friends
  • Senior Member
  • ***
  • Posts: 7,609
Re: Electric coil potting compound
« Reply #5 on: February 22, 2010, 11:02:24 PM »
So is that Tesla Coil big enough to see from my house? [popcorn]

jim
Report to moderator   Logged
Sometimes we carry more weight then we owe.
And sometimes goes on and on and on.

BAH-WEEP-GRAAAGHNAH WHEEP NI-NI BONG

Nick1911

  • Administrator
  • Senior Member
  • *****
  • Posts: 8,492
Re: Electric coil potting compound
« Reply #6 on: February 22, 2010, 11:11:51 PM »
Quote from: Jim147 on February 22, 2010, 11:02:24 PM
So is that Tesla Coil big enough to see from my house? [popcorn]

jim


Heh.  I actually rewound a microwave oven transformer to have a secondary output of 90VAC no load.  It's a little high (75-80v is closer to ideal), but I got carried away with windings.  Should still work fine for what I need it to, though.

It's going in a home built EDM machine.  :angel:
Report to moderator   Logged

Jim147

  • friends
  • Senior Member
  • ***
  • Posts: 7,609
Re: Electric coil potting compound
« Reply #7 on: February 22, 2010, 11:56:42 PM »
I have a few microwave transformers around here if you burn something up. =D

jim
Report to moderator   Logged
Sometimes we carry more weight then we owe.
And sometimes goes on and on and on.

BAH-WEEP-GRAAAGHNAH WHEEP NI-NI BONG

Harold Tuttle

  • Professor Chromedome
  • friend
  • Senior Member
  • ***
  • Posts: 8,069
Re: Electric coil potting compound
« Reply #8 on: February 23, 2010, 07:40:30 AM »
« Last Edit: February 23, 2010, 07:52:39 AM by Harold Tuttle »
Report to moderator   Logged
"The true mad scientist does not make public appearances! He does not wear the "Hello, my name is.." badge!
He strikes from below like a viper or on high like a penny dropped from the tallest building around!
He only has one purpose--Do bad things to good people! Mit science! What good is science if no one gets hurt?!"

280plus

  • friend
  • Senior Member
  • ***
  • Posts: 19,131
  • Ever get that sinking feeling?
Re: Electric coil potting compound
« Reply #9 on: February 23, 2010, 08:09:31 AM »
You better not be creating any black holes dammit!  :mad:

 =D
Report to moderator   Logged
Avoid cliches like the plague!

French G.

  • friend
  • Senior Member
  • ***
  • Posts: 10,202
  • ohhh sparkles!
Re: Electric coil potting compound
« Reply #10 on: February 23, 2010, 10:58:00 AM »
Quote from: Nick1911 on February 22, 2010, 11:11:51 PM
Heh.  I actually rewound a microwave oven transformer to have a secondary output of 90VAC no load.  It's a little high (75-80v is closer to ideal), but I got carried away with windings.  Should still work fine for what I need it to, though.

It's going in a home built EDM machine.  :angel:

Please do tell, I want one too!


Report to moderator   Logged
AKA Navy Joe   

I'm so contrarian that I didn't respond to the thread.

Nick1911

  • Administrator
  • Senior Member
  • *****
  • Posts: 8,492
Re: Electric coil potting compound
« Reply #11 on: February 23, 2010, 04:25:25 PM »
Got the insulating varnish from Motion Industries.  $5.10 out the door.  =D

Quote from: Jim147 on February 22, 2010, 11:56:42 PM
I have a few microwave transformers around here if you burn something up. =D

Thanks, I'll keep that in mind.  =D

Quote from: French G. on February 23, 2010, 10:58:00 AM
Please do tell, I want one too!

I'll show off some pics when I finish it.  ;)
Report to moderator   Logged

PTK

  • friends
  • Senior Member
  • ***
  • Posts: 4,318
Re: Electric coil potting compound
« Reply #12 on: February 23, 2010, 04:38:45 PM »
An electronic discharge machining machine? Will you machine with it? Perhaps machine another machine with your electronic discharge machining machine.  :lol:


Anyway, neat project. You'd BETTER share!  ;)
Report to moderator   Logged
"Only lucky people grow old." - Frederick L.
September 1915 - August 2008

"If you really do have cancer "this time", then this is your own fault. Like the little boy who cried wolf."

Jim147

  • friends
  • Senior Member
  • ***
  • Posts: 7,609
Re: Electric coil potting compound
« Reply #13 on: February 23, 2010, 05:25:53 PM »
I hope you have all of the wire you need. I didn't even think to ask before I took 200 pounds into the recycler this morning.

I still have two 55 gallon drums to go through yet.

I'm trying to get these buildings cleaned out so I have some room to work.

jim
Report to moderator   Logged
Sometimes we carry more weight then we owe.
And sometimes goes on and on and on.

BAH-WEEP-GRAAAGHNAH WHEEP NI-NI BONG

280plus

  • friend
  • Senior Member
  • ***
  • Posts: 19,131
  • Ever get that sinking feeling?
Re: Electric coil potting compound
« Reply #14 on: February 23, 2010, 06:01:37 PM »
Damn, I just took copper to the recycler myself today. No where near 200 lbs though. Looks like you buy the beer!  =D
Report to moderator   Logged
Avoid cliches like the plague!

Jim147

  • friends
  • Senior Member
  • ***
  • Posts: 7,609
Re: Electric coil potting compound
« Reply #15 on: February 23, 2010, 06:04:26 PM »
Quote from: 280plus on February 23, 2010, 06:01:37 PM
Damn, I just took copper to the recycler myself today. No where near 200 lbs though. Looks like you buy the beer!  =D

I bought the first round. If your not here in five minutes I'm drinking yours. >:D

jim
Report to moderator   Logged
Sometimes we carry more weight then we owe.
And sometimes goes on and on and on.

BAH-WEEP-GRAAAGHNAH WHEEP NI-NI BONG

Scout26

  • I'm a leaf on the wind.
  • friend
  • Senior Member
  • ***
  • Posts: 25,997
  • I spent a week in that town one night....
Re: Electric coil potting compound
« Reply #16 on: February 23, 2010, 06:50:17 PM »
Am I the only one here who is debating between wrapping all my electronic gizmo's in aluminium foil and applying to be Nick's evil Henchmen.  (And it's a Union gig.... Henchmen, Sidekicks, and Minions Local 81)   =D
Report to moderator   Logged
Some days even my lucky rocketship underpants won't help.


Bring me my Broadsword and a clear understanding.
Get up to the roundhouse on the cliff-top standing.
Take women and children and bed them down.
Bless with a hard heart those that stand with me.
Bless the women and children who firm our hands.
Put our backs to the north wind.
Hold fast by the river.
Sweet memories to drive us on,
for the motherland.

280plus

  • friend
  • Senior Member
  • ***
  • Posts: 19,131
  • Ever get that sinking feeling?
Re: Electric coil potting compound
« Reply #17 on: February 23, 2010, 09:38:57 PM »
Quote from: Jim147 on February 23, 2010, 06:04:26 PM
I bought the first round. If your not here in five minutes I'm drinking yours. >:D

jim
Awwww, a day late and a dollar short as usual.  =(
Report to moderator   Logged
Avoid cliches like the plague!

Jim147

  • friends
  • Senior Member
  • ***
  • Posts: 7,609
Re: Electric coil potting compound
« Reply #18 on: February 23, 2010, 09:44:20 PM »
Quote from: 280plus on February 23, 2010, 09:38:57 PM
Awwww, a day late and a dollar short as usual.  =(

Don't worry about it. At this point I've had mine, yours and everyone's.

I'm just sitting back on a heating pad working on making the pain go away. ;)

jim
Report to moderator   Logged
Sometimes we carry more weight then we owe.
And sometimes goes on and on and on.

BAH-WEEP-GRAAAGHNAH WHEEP NI-NI BONG

280plus

  • friend
  • Senior Member
  • ***
  • Posts: 19,131
  • Ever get that sinking feeling?
Re: Electric coil potting compound
« Reply #19 on: February 24, 2010, 07:25:03 AM »
See, you let your copper pile get too big.

I'll never forget the day I demo-d out a huge air handler. 4'X8' duct. Guess what I found when I pulled the insulation off of the duct.  =D
Report to moderator   Logged
Avoid cliches like the plague!
Pages: [1]
« previous next »