Looking for advice re: compound / epoxy resin or something to seal electronic device to withstand vibration

Forums › Home Workshop DIY › Looking for advice re: compound / epoxy resin or something to seal electronic device to withstand vibration

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ubergeeknz

3344 posts

Uber Geek

Trusted

Vocus

#1710461 27-Jan-2017 09:41

IMO do a test block roughly the same size as your target, see what happens. Try 2:1 - it says on the resin "Use ratio specified on the hardener".

RUKI

1402 posts

Uber Geek

#1712469 29-Jan-2017 20:32

test #1 results:

2:1 (2TS +1TS) TS - Tea Spoon

Instead of 12 Hours as per label - it hardened in 48 hours :-(

In room temperature - very hard; drillable, does not crack. When heat applied (about 40-50C) it becomes flexible as rubber.

test #2 - just mixed 1:1 will see

sparkz25

750 posts

Ultimate Geek
Inactive user

#1712527 29-Jan-2017 23:31

we use a bizline product called BIZ GEL which works really well and is re-accessible, you can get it form ideal electrical and it comes in a caulking tube or a 2 part mix and works really well its also IP68

Journeyman

1186 posts

Uber Geek

#1712549 30-Jan-2017 01:59

Thought about using silicone?

RUKI

1402 posts

Uber Geek

#1712735 30-Jan-2017 13:07

sparkz25:

we use a bizline product called BIZ GEL which works really well and is re-accessible, you can get it form ideal electrical and it comes in a caulking tube or a 2 part mix and works really well its also IP68

Very Interesting. How hard is it after polymerisation? i.e. Motorcycle frame is vibrating a lot.

blakamin

4431 posts

Uber Geek
Inactive user

#1712970 30-Jan-2017 20:54

RUKI:

test #1 results:

2:1 (2TS +1TS) TS - Tea Spoon

Instead of 12 Hours as per label - it hardened in 48 hours :-(

In room temperature - very hard; drillable, does not crack. When heat applied (about 40-50C) it becomes flexible as rubber.

test #2 - just mixed 1:1 will see

I'd make more than a few teaspoons.

The reason for the long curing is the hardener is old.

After it's exposed to air, the chemicals break down a bit. We actually have a hardener at work that will harden overnight after being exposed to air. And others that won't work at all.

neb

11294 posts

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Lifetime subscriber

#1712977 30-Jan-2017 21:12

sparkz25:
we use a bizline product called BIZ GEL which works really well and is re-accessible, you can get it form ideal electrical and it comes in a caulking tube or a 2 part mix and works really well its also IP68

Interesting. Can you give an approximate price for it? They really don't seem to want to give any pricing info online.

Sharesies kids

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RUKI

1402 posts

Uber Geek

#1728371 1-Mar-2017 16:20

Final decision was - epoxy. It is up and running now. We'll see how long will it last.

KillerHulk

348 posts

Ultimate Geek

#1728377 1-Mar-2017 16:47

Hardex

http://www.sulco.co.nz/s.nl/sc.16/category.401129/.f

found some options

I Eat Dumbbells for Breakfast

RUKI

1402 posts

Uber Geek

#1728478 1-Mar-2017 19:41

KillerHulk:

Hardex

http://www.sulco.co.nz/s.nl/sc.16/category.401129/.f

found some options

At least not that expensive.

Note that "Steel Stick" is metal reinforced - I would assume it is electro conductive, hence not for electronics. "Aqua Stick" - noted for future reference.

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