Potting Compound,Mix

[Rov]

What are people using for potting ,of electronic pcb,small.And for Coils,other than Foam,from a can?
For Full Enviro sealing ,stability,etc,.
other than expensive 2 pack resins.whats the cheapest,effective for Hobbiest
to use. Thank!

[Tinkerer]

What are people using for potting ,of electronic pcb,small.And for Coils,other than Foam,from a can?
For Full Enviro sealing ,stability,etc,.
other than expensive 2 pack resins.whats the cheapest,effective for Hobbiest
to use. Thank!

I heard of people using candle wax. It has good electrical properties, is water proof, light and not too expensive. The petroleum based one is best, sometimes it is called solid vaseline.

Tinkerer

[Qiaozhi]

What are people using for potting ,of electronic pcb,small.And for Coils,other than Foam,from a can?
For Full Enviro sealing ,stability,etc,.
other than expensive 2 pack resins.whats the cheapest,effective for Hobbiest
to use. Thank!

You can buy potting compound from places like Maplin ->
http://www.maplin.co.uk/module.aspx?moduleno=4057

[B^C]

Gday Rov,

The Epoxy Potting Compound is relatively cheap when purchased from the right places & i don't think you'll buy a better product for the application.
Below is a 250grm pack for about $17, i normally buy larger quantities.

If you buy it in the plastic bags the two parts are seperated by a divider, i normally cut the corners off the ends & pour the epoxy & the hardener into seperate tins. You can then mix small quantities as required seperately.
It works out very cheap for each item, most times it's cheaper than lesser grade substitutes.

http://australia.rs-online.com/mobil...duct&R=1991424

http://australia.rs-online.com/mobil...94857722&Nty=1

[Rov]

Yes,the first listed product in your links is very reasonable priced as well BC.
especially from RS typically high prices.I think that will be the go.Thanks very much BC.

[Max]

Yes,the first listed product in your links is very reasonable priced as well BC.
especially from RS typically high prices.I think that will be the go.Thanks very much BC.

Just watch your back... when using it...

use gloves... don't touch the hardner stuff... mix and use... then let cure, but do not touch, do not inhale, do not smoke, use breather, work outside etc

The thing... can give serious troubles and it's not joke... sensitized people can even die for a shock induced by epoxy compounds, expecially hardner.

People here often forget there are risks involved in epoxy stuff... or just don't know about. It's toxic and can cause severe respiratory shock if things go wrong.

Also... don't rub eyes , don't touch sensitive parts (e.g. mouth, nose etc) with gloves... use gloves then if have to rub eyes discard the gloves, rub the eyes, then use new gloves.

Not a joke.

Kind regards,
Max

[Alewkeery]

Potting CompoundMix

i am looking for a aluminum box with heatsink and a flanged cover for mounting. cast is what i suspect it will be made of. relatively small in size 3x3x1 or 4x4x1 plus height of heatsink, etc. its for a automotive application/circuit i am working on. ive seen some automotive electronics that use this, but i suspect they might have had it custom made, im looking for off the shelf item. the heatsink is some fins top side and the bottom cover is flanged for mounting. i will be potting my pcb.or, an extrusion would work if one side had fins and allowed for a covers, etc.anyone seen a box or extrusion like this? i wish to avoid mounting a seperate heatsink to a box, etc.

[Rov]

i am looking for a aluminum box with heatsink and a flanged cover for mounting. cast is what i suspect it will be made of. relatively small in size 3x3x1 or 4x4x1 plus height of heatsink, etc. its for a automotive application/circuit i am working on. ive seen some automotive electronics that use this, but i suspect they might have had it custom made, im looking for off the shelf item. the heatsink is some fins top side and the bottom cover is flanged for mounting. i will be potting my pcb.or, an extrusion would work if one side had fins and allowed for a covers, etc.anyone seen a box or extrusion like this? i wish to avoid mounting a seperate heatsink to a box, etc.

Hi,Maybe look for something in the Hammond range of enclosures may suit your purposes?they do Aluminium enclosures in die cast an extruded,an most Electronics supplies can order them in for you,or try direct of the web?
think their homepage is www.hammondmfg.com
or Google it up an follow the links to their site.look thru products small enclosures.
Ive used their cases an enclosures myself before an top quality/attractive/functional an wide range.their main location is Canada for Mfg.but their products are available all over the world.
Rov

[Qiaozhi]

i am looking for a aluminum box with heatsink and a flanged cover for mounting. cast is what i suspect it will be made of. relatively small in size 3x3x1 or 4x4x1 plus height of heatsink, etc. its for a automotive application/circuit i am working on. ive seen some automotive electronics that use this, but i suspect they might have had it custom made, im looking for off the shelf item. the heatsink is some fins top side and the bottom cover is flanged for mounting. i will be potting my pcb.or, an extrusion would work if one side had fins and allowed for a covers, etc.anyone seen a box or extrusion like this? i wish to avoid mounting a seperate heatsink to a box, etc.

You could try Farnell -> http://be.farnell.com/
They have a huge range of enclosures (many with mounting flanges) but I could not find one with an integral heatsink.

[grungymike]

I'm using a Bud Enterprises box, found it in the Mouser on line catalog. They've got several pages of enclosures from different manufacturers.

gm

[grungymike]

Check out the "coils glue" thread in the tools & techniques forum

gm