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G12 ceramic magnet glue


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#1 ThunderThumb

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Posted 26 March 2020 - 07:02 PM

What gluecis good for these , super glue , J.B. weld , thermal set glue , what does everybody use , thanks
Earl Anderson




#2 gotboostedvr6

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Posted 26 March 2020 - 07:44 PM

Jb is nearly as good as the thermo set and a hundred times better then super glue.
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#3 gmpower

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Posted 26 March 2020 - 08:48 PM

Use the koford bake in oven 1 1/2 hours at 360 degrees the rear nag will stay in way longer than JB weld. I've never used Skinners but heard it is good stuff the port Jeff guys would know.

Greg
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#4 Jesse Gonzales

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Posted 26 March 2020 - 09:20 PM

for ceramics JB Weld gray is very good, I used it in the old 27B class and never lost a magnet. for that matter it held up in the old Camen size 5 27 setups just fine too.

 

Jesse Gonzales



#5 SD Hurley

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Posted 27 March 2020 - 07:50 AM

What process does everyone use to remove magnets?


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#6 MSwiss

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Posted 27 March 2020 - 08:38 AM

Use a soldering iron, turned all the way up, and lay the face of the tip on the inner curve of the magnets.

Apply as much solder, on the tip, as possible before sticking the tip inside the can, and feed in more, if possible.

This will provide heat transfer, and get the job done as quickly as possible.

A few seconds after the epoxy starts smoking, the magnet should be able to be pushed out, in the case of a C can, from the backside, with a screwdriver, or the end of an axle.

A 2nd set of hands, and a fan sucking the smoke away, will make the job easier, and less "unhealthy".

If those magnets are going to be used again, they should be rezapped after installation.

Mike Swiss
 
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#7 Rotorranch

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Posted 27 March 2020 - 08:44 AM

I use an old toaster oven... Put the can and magnet assembly, and put it on broil for awhile.

 

Rotor


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#8 mreibman

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Posted 27 March 2020 - 10:09 AM

I have had great success recently in removing magnets using a mini heat gun for a short period of time, which usually loosens the epoxy to the point you can just slide the magnets out. Earlier this week, I have a magnet that's stuck. So I asked someone smarter than me, who says he uses a micro torch.

 

Regardless of what method you use, be safe and conscious of what you're doing. Heat, and moreso, open flame, are dangerous enough around slot car stuff, but the gases released by some of the stuff when heated are also potentially very bad for your health.

 

Be sure to wear an appropriate mask, work in a well ventilated area, and use proper PPE for what you're doing.

 

oh yeah, and WASH YOUR HANDS. :-)


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#9 SD Hurley

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Posted 27 March 2020 - 03:05 PM

What about NEO magnets, I have tried leaving them in paint thinner overnight and it seemed like it softened the magnets to where they broke all apart.


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#10 MSwiss

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Posted 27 March 2020 - 03:23 PM

You must be talking about bonded NEO.

Next time, try the iron and remember you'llost likely have to rezap them, which will probably change the shape of the orientation.

Mike Swiss
 
Inventor of the Low CG guide flag 4/20/18
IRRA® Components Committee Chairman
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Two-time G7 World Champion (1988, 1990), eight G7 main appearances
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Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#11 SD Hurley

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Posted 27 March 2020 - 04:01 PM

Mike.

 

It was a 4002FK motor, the seal was gone so I was just playing around. 

 

What magnets are in a sealed 4002FK motor?


Scott Hurley

 

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#12 MSwiss

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Posted 27 March 2020 - 04:10 PM

Bonded NEO.

Mike Swiss
 
Inventor of the Low CG guide flag 4/20/18
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
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17B West Ogden Ave., Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#13 SD Hurley

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Posted 28 March 2020 - 05:55 PM

Mike,

Once again Thank you for your response.

Everything I have read states that you cannot rezap NEO magnets. 

What is your thoughts on this?


Scott Hurley

 

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#14 MSwiss

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Posted 28 March 2020 - 06:07 PM

You can zap them.

Especially if you have a cobalt zapper.

But as I said, the shape of the field will most likely not stay the same.

I've never seen a zapped poly NEO magnet motor run any better than OK.

Mike Swiss
 
Inventor of the Low CG guide flag 4/20/18
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave., Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#15 Fast Freddie

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Posted 29 March 2020 - 10:31 AM

OK so what's the best way to remove the bonded NEO magnets from the 4002FK set ups?  They are most always too deep in the can and misaligned.  I tried soaking over night in lacquer thinner and that doesn't do it unless your looking for Playdough magnets.


Fred Younkin

#16 Alan Dodson

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Posted 29 March 2020 - 03:25 PM

Removing those magnets is indeed a problem. They are super glued in, or something very close to super glue, and heat is the best way to break the bond. The problem is, heat is the enemy of any NEO magnet. I have had success getting them out with both a soldering iron or a mini torch, both applied to the outside of the can in short doses. The magnets will require rezapping and as Mike noted, it will change the field orientation. I had Alpha do mine. The motors will have less brakes and punch but will RPM like crazy so you will need to run a much lower gear. I had good results with doing just that with a Hawk 6 motor in a Group F class where we were allowed to rebuild the motors.



#17 gotboostedvr6

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Posted 29 March 2020 - 04:58 PM

Make sure they are zapped in the correct orientation when you send them out. They can't be reversed.
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#18 swodem

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Posted 31 March 2020 - 03:10 PM

OK so what's the best way to remove the bonded NEO magnets from the 4002FK set ups?  They are most always too deep in the can and misaligned.  I tried soaking over night in lacquer thinner and that doesn't do it unless your looking for Playdough magnets.

 

FF they are just held in with very light superglue from the factory

Bend the top and bottom retaining tabs away from them

sit the can on the EB end

Use a 3/32 axle as a punch and place it on the magnet, and a light tap with a pair of pliers should shock it loose without breaking it

Heat screws them


Steve Meadows


#19 Fast Freddie

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Posted 01 April 2020 - 11:25 AM

Thanks Steve that's probably what I'll end up doing.  I'm also going to try the 5 min. acetone soak to help it along.  I tried heat along time ago and realized that wasn't the way to go.  Heat is OK for ceramics as long as you have a zapper.


Fred Younkin

#20 Phil Hackett

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Posted 02 April 2020 - 12:12 PM

If you use JB Weld DO NOT heat it up over 150°F. When I was racing when I applied heat over "warming" temperature, the bond was not as good as either room temperature or the "warming" setting on the toaster oven. Yes, it will take longer but the bond is superior to accelerating the cure at a higher temp.


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#21 gotboostedvr6

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Posted 06 April 2020 - 01:25 PM

Agreed.
Room temp cure is best
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