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Forum topic by MrRon posted 12-01-2011 08:07 PM 1064 views 0 times favorited 14 replies Add to Favorites Watch
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MrRon

4001 posts in 2787 days


12-01-2011 08:07 PM

I drilled a hole in a wood edge to insert a rare earth magnet. I used a forstner bit so the bottom would be flat I used an epoxy to hold the magnet in the hole, but it didn’t hold. The magnet has a very smooth hard surface. What adhesive do you think would work?


14 replies so far

View NiteWalker's profile

NiteWalker

2735 posts in 2120 days


#1 posted 12-01-2011 08:10 PM

Maybe try construction adhesive, or try scuffing the back of the magnet with sandpaper to give the epoxy something to bite into. Also make sure the magnet is cleaned with acetone or mineral spirits. I’d go with acetone since it dries really fast.

-- He who dies with the most tools... dies with the emptiest wallet.

View DS's profile

DS

2156 posts in 1963 days


#2 posted 12-01-2011 08:13 PM

i usually buy magnets with a countersunk hole in the center. Nothing like a #8 wood screw to hold a magnet in place.

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251

View Howie's profile

Howie

2656 posts in 2466 days


#3 posted 12-01-2011 08:18 PM

I used gorilla glue. Still holding a year later. Just don’t use too much(expansion)

-- Life is good.

View childress's profile

childress

841 posts in 3085 days


#4 posted 12-01-2011 08:20 PM

was the epoxy mixed right? I can’t imagine why it wouldn’t work…

-- Childress Woodworks

View SPalm's profile

SPalm

5271 posts in 3425 days


#5 posted 12-01-2011 08:22 PM

I also am surprised that epoxy did not work. I use super glue.

Steve

-- -- I'm no rocket surgeon

View Bill White's profile

Bill White

4530 posts in 3503 days


#6 posted 12-01-2011 08:23 PM

Super glue here as well.
Bill

-- bill@magraphics.us

View Bsmith's profile

Bsmith

330 posts in 2213 days


#7 posted 12-01-2011 08:32 PM

I’ve been using Gorilla super glue with no problems.

-- Bryan

View MrRon's profile

MrRon

4001 posts in 2787 days


#8 posted 12-01-2011 08:48 PM

Thanks; I’ll try ths superglue.What I’m doing is holding a plywood belt/pulley guard against a steel stand.

View xwingace's profile

xwingace

225 posts in 2131 days


#9 posted 12-01-2011 08:53 PM

I’ve used E-6000 for such things, glued metal to glass with it O_o If the superglue doesn’t work give that a try.

-- I'm not as good as I once was, but I'm as good once as I ever was.

View richgreer's profile

richgreer

4541 posts in 2618 days


#10 posted 12-01-2011 10:31 PM

I’ve made quite a few refrigerator magnets with left over pieces of exotic wood.

I found a drill bit that was just the right size. The magnet fits into the hole snugly. Using glue is optional, but I always put a drop of thick CA in the bottom of the hole before inserting the magnet. I couldn’t remove one of those magnets if I wanted to (with or without the glue).

FYI – Refrigerator magnets made with exotic wood are very popular, simple gifts.

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.

View SASmith               's profile

SASmith

1850 posts in 2530 days


#11 posted 12-02-2011 02:20 AM

I recently recessed some 1/2” diameter magnets in sassafras.
I drilled an undersized hole for the magnet.
Then scuffed up the glue side of the magnet with sandpaper.
Put a dab of gel super glue in the hole.
Then pressed the magnet in the hole with an F clamp.
It worked out well.

-- Scott Smith, Southern Illinois

View Rick's profile

Rick

8287 posts in 2576 days


#12 posted 12-02-2011 09:51 PM

Hi Ron:

I use Lee Valley’s Rare Earth Magnets. BUT! I don’t glue them inPlace. LV also sells “Cups” for the Magnets. They have a small CountersunkHole in the bottom. You Screw the Cup in Place then simply Drop In The Magnet.

LV Claims the cups also Double the holding Power of the Magnet. Thay also caution you that if you ever want to get the Magnet back out that you should cut a small slice out of the side of them BEFORE Installing both, so you can use a small screwdriver blade to get the Magnet back out.

I’m short on time or I’d go there and post the Link.

I just did anyway. SHE can wait! ...LOL… This is the link to various Sets of Magnets and Cups. there are other Combinations you can get to from there.

http://www.leevalley.com/en/wood/page.aspx?p=58750&cat=1,42363,42348&ap=1

Hope it helps.

Rick

-- Hope Everyone Is Doing Well! .... Best Regards: Rick

View MrRon's profile

MrRon

4001 posts in 2787 days


#13 posted 12-03-2011 12:52 AM

Hi Rick: I didn’t now about the cups and washers. I have the magnets, and I will make the cups and washers. I only need two of each.

View Knothead62's profile

Knothead62

2581 posts in 2504 days


#14 posted 12-03-2011 01:05 AM

MrRon, I use Two Ton Epoxy for a lot of my projects. Works great, about 30 minute working time. I was first told about this by a guy who built golf clubs. I used it for that- takes a lot of punishment! You can get it at the local box store or hardware store. Our local Ace Hardware store has it.

Question for richgreer- how about showing us some of the ref. magnets you make? Specific designs or a nice piece of finished wood with the magnet? Interested.

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