Talk Composites - The Forum for Advanced Composites

Resin or other adhesive that can withstand 120C sustained

http://www.talkcomposites.com/Topic37593.aspx

By DaAan - 8/1/2020 10:28:38 AM

Hi All,
i did a quick search around and i couldn't find a specific answer.

i need an adhesive to bond some magnets into a heated build plate for a 3d printer but i need it to be able to withstand 120C sustained temps for several hours or possibly even days (some 3d prints take forever) and not degrade or warp as the channels for the magnets are fairly small but also close to the heat source (which is a heated PCB).

any ideas as to which adhesive's would be good?

i know some resins can withstand up to like 400C+ but i've not been able to find out much about sustained temperature loads so i'm not sure if thats just a peak temp it can take or not.

[edit] i should also note that with the bed being a PCB i will be unable to post-cure in an oven and ideally need something that'll cure at room temp.

cheers,
Steve
By DaAan - 8/1/2020 4:07:16 PM

 
Hanaldo - 8/1/2020 1:28:53 PM
The EL160 is a laminating resin, so will be quite low viscosity. Not sure if that is important for you. You could thicken it with some additives if need be.

My choice would be Araldite K138.

it doesn't look like i can get Araldite K138 in the UK  - all the ones i could find are all in Australia - which is a bit far away for just literally gluing small magnets into a PCB - so i dont think the thin viscosity of the El160 is going to be much of an issue to be honest

thanks though Smile