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What type of glue can I use to hold magnets in place?

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Old 11-07-2012, 12:09 PM
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jstanton
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Default What type of glue can I use to hold magnets in place?

I want to use magnets to hold my canopy on. What type of glue will hold the magnets in place and not come loss when I remove to canopy. I have a would fuselage and canopy. The Magnets are 1/2" in diameter and 1/4" thick. I will use 2 dowels on the front of the canopy and 4 magents on the rear. 2 in the fuselage and 2 in the canopy itself

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Old 11-07-2012, 01:36 PM
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Default RE: What type of glue can I use to hold magnets in place?

I would use 30 min. epoxy myself.
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Old 11-07-2012, 02:53 PM
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Default RE: What type of glue can I use to hold magnets in place?

Magnetic glue of course !!

Just kidding. I to would opt for a good epoxy.
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Old 11-07-2012, 03:08 PM
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Default RE: What type of glue can I use to hold magnets in place?

Take a demel or some heavy sandpaper, or file and scuff up the side of the magnet that will accept the epoxy and it will give the glue something to "bite" into. Scuff up the wood as well.
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Old 11-07-2012, 05:49 PM
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Default RE: What type of glue can I use to hold magnets in place?

I use a brass tube chucked into a drill to cut the hole for the magnet. This gives the magnet a tight fit into the wood. Then, just a couple of drops of thin CA from the back side is all it takes. Make sure and glue the magnets in so they do not oppose each other. Been doing it this way for years and have never had one come loose. The ones in this plane are 3/8" diameter.

RS
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Old 11-07-2012, 06:26 PM
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Default RE: What type of glue can I use to hold magnets in place?

How do you get the "hole" removed? Ya know the inside of it. Don't you wind up with just a ring or groove around the outside?
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Old 11-07-2012, 07:01 PM
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Default RE: What type of glue can I use to hold magnets in place?

Quote:
ORIGINAL: jstanton
The Magnets are 1/2" in diameter and 1/4" thick. I will use 2 dowels on the front of the canopy and 4 magents on the rear. 2 in the fuselage and 2 in the canopy itself
I also would use epoxy or a medium CA, in both cases with the magnets inset into a hole.

How big is this plane ?? 4 x 1/2" magnets are huge. I would think this is for a giant scale plane otherwise buy smaller rare earth magnets and save some weight.

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Old 11-08-2012, 02:24 AM
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Default RE: What type of glue can I use to hold magnets in place?

JB Weld.
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Old 11-08-2012, 02:43 AM
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jstanton
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Default RE: What type of glue can I use to hold magnets in place?

I went ahead and drilled two 1/2" holes into the canopy and used some 1/2" flat washers on the fuselage. I epoxied both the batteries and washers in place. This has made for a very tight fit and looks like it is going to work just fine. O by the way the plane is a 1/5 scale Fokker D-VII with a DEL-30 gas engine. That is why I choose to use 1/2" flat magnets. Here are a few pic's The canopy has the pilot in it.
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