Author Topic: Epoxy for pcb trace repair  (Read 488 times)

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Offline alan.bainTopic starter

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Epoxy for pcb trace repair
« on: April 23, 2022, 11:01:38 am »
I used to have supplies of a very low viscosity high temp epoxy for gluing down trace repairs on PCB (such as those frames made by Pace or CirKit or even slightly less expensively from ebay). I'm finding it very hard to find a supplier at a sane price.

The only place I can find it is BEST https://www.soldertools.net/pcb-repair-epoxy-resin-and-hardner-10-packets/ which costs a stunning $150 for 10 sachets. Now I know epoxy can be expensive but this is a bit over the top.

I'm not looking for epoxy overcoat to protect the repaired tracks - need it to stick down SMD pads etc.

Is there a standard product from an epoxy resin provider? I don't mind buying in quantity as usually epoxy keeps well, but sachets are a bit of a one-use thing!

Alan
 

Offline Smoky

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Re: Epoxy for pcb trace repair
« Reply #1 on: April 23, 2022, 02:32:29 pm »
JLCPCB has been on the top of this message board as long as I've been on it.

I can't think of anyone better to contact regarding PCB trace adhesive.

Their PCB prices always seemed reasonable so maybe they could make available small amounts of the epoxy.

 

Offline jpanhalt

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Re: Epoxy for pcb trace repair
« Reply #2 on: April 23, 2022, 02:42:10 pm »
I have never used this, but it advertises 500°F. 
https://www.homedepot.com/p/Permatex-0-84-fl-oz-500-Degree-High-Heat-Epoxy-84102/315089205

The viscosity of epoxies is due to fillers and other agents (e.g., thixotropic) added for workability.  For my models, I use MGS epoxy which is close to cream thin, until I add something.
https://www.cstsales.com/mgs_epoxy.html

I would search first for high temperature epoxy and within that "laminating" if you want something that might wick into a narrow space.
 
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