Potting compounds

[sKooTr]

Can anyone recommend a specific potting compound?

It has been suggested to me that I could use fibreglass resin, like this: http://www.halfords.com/webapp/wcs/stor ... yId_165625.

I also have some of this: http://uk.farnell.com/pro-power/ppc124/ ... Ntt=ppc124.

Not sure which way to go.

[Alaska Rov Systems]

What are you potting ? a camera? lights? you could use epoxy for potting and waterproofing.

[gumma]

I used 2 component epoxy resin for potting my LED lights.

[derelicte]

you can use paraffin wax to pot electronics as long as they don't generate any heat (i.e. stuff other than a light). the wax has the added bonus of being somewhat easily removed.

[Alaska Rov Systems]

I would say the best thing to use for potting the light would be epoxy. I have tried potting with clear silicone before and used a flashlight light almost like that and the silicone worked but was very messy until it dried.

hope this helps!

Alex
Alaska Rov Systems

[m_g]

Hi all,
Is there any difference between potting with epoxy and potting with a superglue eg Tarzans Grip? It's an ethyl cyanoacrylate glue. It's cheaper, and is available in bulk sizes. Would it be ok under pressure? I am only potting wires in a junction box, so the wax method isn't really necessary ie I'll just cut the wires free if I ever need to work on them

Cheers

[bikerbones1968]

This product below is probably the best product for any potting applications. It is a two part silicone, desgined and engineered specifically for electronics.

QSIL.jpg (12.86 KiB) Viewed 9223 times

QSI QSil 216 Clear Liquid Silicone

2-part, clear liquid silicone cures at room temperature in 4 hours. Convenient 10:1 mixing ratio in automatic dispensing equipment or by hand. Low viscosity lets silicone flow around complex parts for electrical insulation and shock resistance. Contains no solvents, non-yellowing, -60 to 200°C temperature range. Its optically clear and thermally conductive to help with heat dissipation.

QSIL 216A And QSIL 216B

[KDM]

Specifically, is there any reason not to use the initially mentioned fibreglass resin as a potting compound? I happen to have gallons of the polyester and if it's been tried and tested, then that would save me trying it AND testing it. Thanks.

[bigbadbob]

We use RS-164-337, it's good stuff and sets solid in 24 hrs.
I get the out of date packs from work when they get thrown out.
Date doesn't seem to be a problem.

[micoma]

This is what I used http://www.ebay.com/itm/291142150337?_t ... EBIDX%3AIT. It worked well for me. Visit http://micomarov.weebly.com/ for details.