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Cyanoacrylate on Ferrite

I'm gluing uncoated ferrite and I'm almost out of glue. I got this CA glue (Titan brand) from Home Depot and well...I have no idea if this stuff is appropriate and it's probably around $1.00 per mL.

An old 1989 Popular Science article on Superglue

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Huh... stabilizers that increase shelf life that reduce bond performance. Wonder if that's something to still watch out for.

I'd like to do better than Home Depot. Where do I get a better CA glue for ferrite? iirc CA has a shelf life and so I don't want to order a train load. Perhaps a few ~10mL tubes for the freezer... Note: I need a CA viscosity for minimal gap yet still overcome the ferrite porosity.

Reply to
D from BC
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Blowtorch + molten glass?

Reply to
Michael

D from BC wrote in news: snipped-for-privacy@4ax.com:

if you want better CA glues,go to a hobby shop and get the kits they use. they have IRC,3 different viscosity CA glues,and they also have accellerator for the CA to make it bond faster.

--
Jim Yanik
jyanik
at
localnet
dot com
Reply to
Jim Yanik

Porosity? Ferrite?

Reply to
Spehro Pefhany

Superglue

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I used to do it years ago, seems to have worked fine. Depends on the application I suppose. We did it with pot cores. A great big glob of hot melt might help too. Worst case, you can always use acetone to dissolve the CA if you want to start over.

Reply to
a7yvm109gf5d1

Uncoated. iirc.. I saw a microscope picture showing the surface roughness of ferrite core material.. And perhaps I read some blurp on porosity.. Foggy memory on that. I'm guessing the porosity is due to surface roughness. It's not like a sponge. (Maybe alittle?..but guessing not.) I suppose some adhesive volume is used in filling between the microgaps in the surface. Then more adhesive is needed for the bond. More adhesive further if greater gap is needed. Clues to ferrite surface roughness(porosity): Low sheen, gets glossy when coated, feels chalky.

Reply to
D from BC

Superglue

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really...

Reply to
D from BC

I got a hobby shop in the neighborhood..I'll check it out. Thanks

Reply to
D from BC

Superglue

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I like CA fro ferrite. No mix, fast initial bond,thin bond line,seems to bond to ferrite very well, good wetting. The only thing that might be a bug is if the CA can't handle the heat from the magnetics and the ferrite heat expansion/contraction changes from the heat.

Reply to
D from BC

Power Integrations actually recommend it IIRC in one or more of their app notes.

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Graham

-- due to the hugely increased level of spam please make the obvious adjustment to my email address

Reply to
Eeyore

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ce

increase

use.

And wear some kind of gloves.

Reply to
JosephKK

Power Integration recommends CA adhesive from Home Depot?

Reply to
D from BC

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