Glue for Toaster Reflow
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Glue for Toaster Reflow

by baldengineer on Sun Jun 03, 2012 5:15 pm

I have a board with two components on the bottom side. I was giving consideration to glueing them into place so that I can reflow the whole board at once. I'm concerned because most glues are flammable.

Is there a glue that is safe to use for reflow?

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Re: Glue for Toaster Reflow

by adafruit_support_mike on Tue Jun 05, 2012 7:43 pm

Loctite 3609 (trade name "chipbonder") is specifically designed to hold SMT components in place for reflow and wave soldering.

Most epoxies should be okay.. that's what the FR4 laminate is made from after all. If you're not sure, you can run a few drops through a dummy heating and see what happens. Small strips of Kapton tape would also work.

You could also look at thermoset plastics. I don't know how FIMO or Sculpey would stand up to a reflow cycle (they harden at 110-130C), but again, you could do a dummy batch to find out.
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Please be positive and constructive with your questions and comments.