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Registered Member #1321
Joined: Sat Feb 16 2008, 03:22AM
Location:
Posts: 843
Has anyone ever used this epoxy available on Ebay?
Compared to the apparently comparable product by MG Chemicals, it seems like a good deal.
The same seller also has calcium carbonate fine powder for sale as a filler material.
Addition of calcium carbonate filler will increase the thermal conductivity and improve the mechanical properties of the epoxy. I think it will also reduce the electrical losses (i.e. lower the dissipation factor), but I can't find any data on that.
If I can get some decent epoxy at a decent price, I may make a bunch of high power HV secondary coils - for use with a "UU" core assembly using Ferroxcube 100/57/25 3C90 "U" core pieces (or the TSC International equivalent). Maybe I could make some for anyone here that might want to experiment with one.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Ive used polymerproducts' company stuff before, but not speciffically this one. this is a coincidence, i was thinking all today about epoxy casting ring-insulators. like the ones on power poles, but smaller for our purposes. It looks excellent, and they are credible, if thats what your asking. the peak exotherm might need to be watch out for, could destroy the components to be potted.
in any case, their products have always been A+ in my applications. but that CF and fiberglass. i want to see there vid for voidless encap using a syringe.
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Potting Epoxy on Ebay
