Plastic or Epoxy Coated Magnets?

[robsworld78]

Hi, which of these magnets would you feel more comfortable with in your tank?

https://www.magnet4sale.com/n45-1-2x1-2-neodymium-rare-earth-cylindrical-magnet-epoxy-coated/
https://www.magnet4sale.com/n52-1-2x5-8-neodymium-rare-earth-disc-magnet-plastic-coated/

 

[ApoIsland]

Plastic all day long. The epoxy ones crack easily. Even the triple coated. I also cover the plastic ones with a layer of rubber cement just in case.

 

[mfinn]

I would go with the plastic coated ones.
I made frag racks a few years back and used the epoxy coated ones for the outside magnets and found that they would eventually rust. While they looked perfect when you get them new, they must have tiny scratches that allow air/water to get in.

 

[robsworld78]

Thanks, I went with the plastic. For the longest time I was settled on getting epoxy as I figured lots of people used epoxy in tanks to hold things and thought it was quite durable. Everything I read seems 50/50 on both but yeah I guess more leaning plastic.