neodyium magnets + coating?

[xiholdtruex]

I’ve had good success with incasing magnets with plumbers putty. Knead it to mix then roll it out flat and wrap the magnet. Make sure to work the seams so they are sealed. Work on plastic like a freezer bag to prevent it from sticking to surfaces. You need to move fast since it cures quickly.

Any specific putty?

 

[jjflounder1]

The plumbers epoxy stick same stuff as Coral epoxy just not purple ...
It's safe for drinking water

 

[jjflounder1]

The liquid two-part epoxy in that dual syringe tube cartridge ... Only $3 to $6 they fall inthe class of BISPHENOL epoxy and should be fine .
if they say safe for drinking or palatable water should be golden.. I'd use them ... Again the key would be making sure it's cured for a couple days and wash them off.

 

[jjflounder1]

Following... I'm curious if boat repair shops use a reef safe product.

The 2 part EPOXY falls in that class of BISPHENOL epoxy and should be ok.
Some of them do have a residue called amine blush that will wash off with soap and water ... It's there to help multiple layers stick together ...

I'm NOT sure about the "polyester resin".

 

[xiholdtruex]

The 2 part EPOXY falls in that class of BISPHENOL epoxy and should be ok.
Some of them do have a residue called amine blush that will wash off with soap and water ... It's there to help multiple layers stick together ...

I'm NOT sure about the "polyester resin".

I love those two part syringe epoxys there great to keep around did not know they were reef safe

 

[xiholdtruex]

The plumbers epoxy stick same stuff as Coral epoxy just not purple ...
It's safe for drinking water

https://www.amazon.com/PC-Plumbing-...37046918&sr=1-30&keywords=plumbers+putty&th=1

Like this one?

 

[jjflounder1]

https://www.amazon.com/PC-Plumbing-...37046918&sr=1-30&keywords=plumbers+putty&th=1

Like this one?

Ya it's safe for drinking water ..
Pretty much the same thing as Coral epoxy .

 

[jjflounder1]

I love those two part syringe epoxys there great to keep around did not know they were reef safe

If you read the link I posted earlier in the thread . All your clear two-part epoxy are based on BISPHENOL ..
Which is FDA approved for food contact ...

It's kind of like the aquarium safe silicone debate ... Very few companies want the liability of you claiming $10,000 worth of fish died because you use their product in your tank ..

We use cyanoacrylate , Krazy Glue, Super Glue, dollar store fast glue, in our tanks all the time that's not FDA Food contact approved .

I wouldn't build my entire tank out of any of them ...
A little bit of common sense that they're fully cured properly... if it still smells or tastes funny I wouldn't put it in my tank ... epoxy does have a shelf life of about 1 year ...

 

[jjflounder1]

Following... I'm curious if boat repair shops use a reef safe product.

Guys that build plywood tanks use it all the time ..

So you really can build a tank from it .. if you really wanted to ..

 

[wesman42]

Do you think Plasti dip would work to coat them? If it is dipped a few times in a can and allowed to cure?

I have used plasti-dip on automotive applications.

If you are planning on any type of friction between the magnet and it's use, then I'd nice the idea altogether.

 

[csb123]

The plumbers epoxy stick same stuff as Coral epoxy just not purple ...
It's safe for drinking water

Yes. It’s sometimes cheaper than the “coral” marketed stuff.

 

[xiholdtruex]

Email response from Plasti dip


Good Morning Carlos,



Yes, Plasti Dip has excellent resistance to salt water, and it is considered non-toxic once fully cured and dry; 24 hours after final coat is applied.



Thank you,



Tiffany Werner

Customer Service/Technical Support/Inside Sales | Plasti Dip International

 

[Bayareareefer18]

The plumbers epoxy stick same stuff as Coral epoxy just not purple ...
It's safe for drinking water

Plumbers putty and epoxy are two different things. Plumbers putty is the stuff you would use around a shower or sink drain. Never really fully "cures" I wouldnt trust that as it remains somewhat pliable.

 

[cracker]

There is an epoxy gel aquatic safe paint sold Aat " aquatic eco systems" . There are out of Tampa . Iv'e use4d this paint twice on plywood sumps back in the day when money was tight. Worked fine . try 'sweet water aquatic safe epoxy ".

 

[jjflounder1]

Plumbers putty and epoxy are two different things. Plumbers putty is the stuff you would use around a shower or sink drain. Never really fully "cures" I wouldnt trust that as it remains somewhat pliable.

Yes they are two very different things

 

[jjflounder1]

Email response from Plasti dip


Good Morning Carlos,



Yes, Plasti Dip has excellent resistance to salt water, and it is considered non-toxic once fully cured and dry; 24 hours after final coat is applied.



Thank you,



Tiffany Werner

Customer Service/Technical Support/Inside Sales | Plasti Dip International

I also received a polite email from Plasti Dip

Good Morning James,



Many consumers have successfully applied Plasti Dip in their aquariums, and use for hydroponics as well. Plasti Dip is considered non-toxic once fully cured and dry; 24 hours after final coat is applied. We recommend testing all applications in a small area to make sure it will meet your expectations.



Thank you,



Tiffany Werner

Customer Service/Technical Support/Inside Sales | Plasti Dip International