[chbot] Suitable Epoxy

[Mark Atherton]

Just been thinking about this in the bath...

you may need to watch out for differential 
expansion issues with a hard adhesive

basically if the substrate, IC, and adhesive 
expand at different rates with temperature, the 
adhesive might damage one of the other two.

you may be able to offset this issue by curing 
the adhesive at 60c, so only 40c to room temp and 40c to 100c

-mark



At 12:34 p.m. 20/10/2014, you wrote:
>Jaycar have J B Weld - Heat resistance: 260 
>degrees Celsius, Contents: 25ml : $17.00
>http://tinyurl.com/ljgljpy
>
>At 12:04 p.m. 20/10/2014, you wrote:
>>I'd suggest Shoe goo. it will be superior to 
>>araldite for this application in many ways. Available from sports stores.
>>
>>On Mon, Oct 20, 2014 at 12:00 PM, Jasper 
>>Mackenzie 
>><<mailto:jasper.mackenzie at gmail.com>jasper.mackenzie at gmail.com> wrote:
>>I have a few temperature sensors (SOIC8) to 
>>keep submerged in water up to boiling temperature.
>>Â So far I have had a whole load of failures keeping them healthy and dry.
>>
>>My next plan is to solder wires to them then encase them in Araldite.
>>Is there anything wrong with this? Will I 
>>discover that Araldite is not rated to 100deg.
>>Â If not, suggestions please.
>>
>>All this in my bid to prove Mark wrong 
>>regarding how far IIC can go reliably (so far 
>>he has been right... still suprised 8)
>>
>>Jasper