What advantages and disadvantages do epoxy coated neodymium magnets have when compared to neodymium magnets without this coating?
362686
"chipping" The single biggest advantage of the coating is reduced chipping and cracking of the magnet when in constant use.
429817
Neodymium magnets will definitely hold. The question is whether magnetic paint has enough magnetic material for the magnets to stick to. It may take several coats of paint to provide enough magnetic content.
894514
Neodymium magnets. their field strength is 12,800 gauss. Neodymium magnets are Stronger than any other permanent magnet, but not strong enough to do anything to the chemical structure of the hard water in your pipes. You would need a very large electromagnet for that, and the field strength required would be unsafe for domestic use.
1231071
As far as I know, I'd say yes, I don't think the magnets will effect the newer hard drives. In any case what I can tell you is that I have a Toshiba Laptop that I place right in the middle of both speakers on a small table and have never experienced a problem. The sound is awesome from these speakers, they are initially set for a natural symphonic sound curve but they respond nicely to any EQ adjustments for listening preference.
761934
The magnets were used to attach tracking device to undercarriage of automobiles. I didn't use screw's, but magnets work great!!
1288360
The magnets I purchased have held up very well to corrosion. I have not put them in my dish washer, not even by mistake and would not recommend it. in my opinion they can be very fragile when they accidently snapped together (they can break apart) and also leave a nasty little blood blister. -;) .But I highly recommend them for there great magnetic strength.
1233103
You need an incredibly strong magnet dragging past the platters of a hard drive to effect it. Magnets that you can pull off of a steel plate with your bare hands dont hurt computers anymore, thats a floppy disk era problem. -Your friendly neighborhood Sysadmin.
115367
I wanted to make a note that a magnet does not always prove that it is stainless steel. It depends on what is in the steel. There are some stainless steel that a magnet will still not be magnetized to.
905781
The magnetic mount makes it so easy to remove the 3597 (IMHO the biggest/most important feature of this particular model) that I'd remove it from the mount - you have less long-term wear and tear from heat cycling the unit and less chance a thief sees it mounted and tries to steal it. The unit can take it, but in the hot Florida sun I wouldn't make a habit of it.
1866579
I've never seen a replacement magnet.My boss picked one of my nutdrivers up one day, and like an idiot, dug the magnet out. He couldn't comprehend that the "obstruction" was a pass through magnet. Now, I have one nut driver that is no longer magnetic because I couldn't find the magnet he dug out. Halfwit didn't even offer to replace the tool he destroyed.
2205297
I dont think same technology i doubt it. demags is technolory for something like that and newer technologies that use chips like rfids are not afectedThis magnet will bite you if not careful however. And will mess up credit cards if you get near. I use my magnets for holding thinks in place
1868954
For me, the magnets are very strong. Like all magnets, they work best if attached to solid, thick iron or steel. Mine is attached to one of the frames underneath. A metal alloy, or iron/steel with a thick covering (like rust-proofing) will weaken the bond.
1485126
From my experience, two part epoxy is the best. if on a shiny surface to which the glue is not bonding to, I would recommend taking some sand paper and rough up the surface then glue the magnets on
2050173
Mainly, the price. The powered descalers are electromagnets which achieve the same thing as the economical permanent magnet. The powered descaler comes with a hefty price. Just decide how much you want to spend I guess.
1101510
There is no sign of the colored coating wearing away on mine but this would probably vary depending on how roughly they are used. The blades on mine are attracted to a magnet.
453012
They have slight magnetization. they will pick up small screws through magnetism. Best set of German made screwdrivers for the price online! getting a second set =D
2027037
I'm not sure that this would be a good application for these magnets. The magnetic field produced is very strong, but decreases rapidly with distance. I would imagine that you would have problems holding them in place. I would suggest that you buy the contacts and install them according to manufacturer's recommendations. For example, one well-liked offering on Amazon is Interlogix Door/Window Terminal Contact, Surface Mount, White by UTC (Formerly GE Security/Sentrol). There are several alternatives listed. While it might be nice to engineer your own system, these contacts are inexpensive and easy to install. This, I believe is preferable to using these magnets. This appears to be a case of not reinventing the wheel.