Reef Safe magnets?

[fishmaster]

Originally Posted by michika

I was thinking that anything I got should be covered in epoxy as extra insurance.

Nice link! Thank you. I'm thinking that the one at the bottom of the page is the best size, but I worry about the rubber. Would I just cover over the rubber with epoxy, or remove it, then cover the magnet?

I would try to cover the rubber with a thin coat of epoxy. It might not stick to the rubber very well. They also sell uncoated magnets, which might be the way to go. You just need to be carefull not to drop or allow the non coated ones to smash together. Apperently they chip and break easily, thats why they rubber coat them.

[michika]

Originally Posted by fishmaster

I would try to cover the rubber with a thin coat of epoxy. It might not stick to the rubber very well. They also sell uncoated magnets, which might be the way to go. You just need to be carefull not to drop or allow the non coated ones to smash together. Apperently they chip and break easily, thats why they rubber coat them.

I may go that route then. I want to make magnetic frag plugs for propagation purposes. I want to see how well they work.

Any recommendations on the type of epoxy? I would probably try something like SweetWater or another aquatic friendly brand.

[michika]

Maybe this is a better choice (http://www.kjmagnetics.com/proddetail.asp?prod=RX054E) it says its epoxy coated and appropriate for seawater.

Now how do I go about figuring out what size/strength is appropriate for which glass thicknesses?

[fishmaster]

Originally Posted by michika

I may go that route then. I want to make magnetic frag plugs for propagation purposes. I want to see how well they work.

Any recommendations on the type of epoxy? I would probably try something like SweetWater or another aquatic friendly brand.

I don't really know for sure. I was thinking of doing the same thing as you, but havn't tried it yet. It might be really easy to cover it with a thin layer of putty-deltec or something similar.

[Nate]

http://www.beanfarm.com/store/html/i.../magcliplg.jpg

they even have cradles for plating montis etc...

[michika]

I guess I may just order a bunch of magnets and try it out. I suppose I should order some different sizes, coat them and see what happens.

[fishmaster]

Originally Posted by michika

I guess I may just order a bunch of magnets and try it out. I suppose I should order some different sizes, coat them and see what happens.

It would be worth while seeing how much dry weight you can hang off a powerhead magnet. You can get an idea of what size is needed for what thickness of glass. Then you won't waste money on magnets that are too small. As well, there's no need to buy them any bigger than needed. Just a thought.

Shaun

[skylord]

You might want to look at these if your going to coat them anyway. I bought 25 of the 1/2 ones but they are still sitting waiting for me to complete the 100 other projjects. !/2 inch rare earth are very strong.

http://www.leevalley.com/wood/page.a...=1,42363,42348

You can google "lee valley rare earth" to get this link in case it wont work.

Scott

[michika]

Which size are those magfloats? The smallest ones?

Did you just use Super Glue to bind the frags to the magnets?

[Chowder]

You could also use a mag float. There are three on the back wall.

And a close up os a cap and frag on one.

Was in King ed one day they had four or five sitting at the front counter for 3 dollars each. I did drill holes in a few so I could put frag plugs into them. Ended up filling them partially in with silicone.