Permatex Thread Sealant Reef Safe?

[theJ]

Hi Boomer, I was going to PM you with this Q, but I figured other would like to know also.

I am looking at using Permatex® High Performance Thread Sealant (Thanks snowborda )to supplement Teflon tape on the threads of my pipe fittings:

Product:
http://www.permatex.com/products/au..._Permatex_High_Performance_Thread_Sealant.htm

Data sheet:
http://www.permatex.com/documents/msds/01_USA-English/56521.pdf

Do you think this would be ok to seal the threads on my return/OM Squirt?

Thanks!

 

[Boomer]

It should be just fine. I see no real issue with using it, especially as a thread sealer. Maybe DonW has heard of and tried this stuff to see how well it works.

 

[Kurt_Nelson]

Personally, I wouldn't use it. I've used it tons with steel pipe/hydraulic fittings and that's what it's designed for. I'm assuming you'd be using it on PVC? Everytime I've used the stuff on plastic (alone, without tape), it always leaks and I end up taking things apart, cleaning it up, and using just teflon tape - which does the job just fine. I'd also be concerned about chemicals leaching into the water because the stuff really doesn't harden. No leaching issues with tape.

 

[DonW]

It should be just fine. I see no real issue with using it, especially as a thread sealer. Maybe DonW has heard of and tried this stuff to see how well it works.

I use it by the case but at work not on my tank. It doesnt work well on big pvc joints but smaller ones (3/4 1/2) it works fine.

Don

 

[Snowboarda42]

Personally, I wouldn't use it. I've used it tons with steel pipe/hydraulic fittings and that's what it's designed for. I'm assuming you'd be using it on PVC? Everytime I've used the stuff on plastic (alone, without tape), it always leaks and I end up taking things apart, cleaning it up, and using just teflon tape - which does the job just fine. I'd also be concerned about chemicals leaching into the water because the stuff really doesn't harden. No leaching issues with tape.

This stuff doesn't harden, you're right, but it doesn't stay liquid either. It is pliable, sort of like a really thick gel. It won't come off into your tank water either, and seeing as how Boomer looked at the MSDS sheet and saw no possible ill effects from using it, I'd say its fine as well. He already tried teflon tape (in another thread) and it leaked. IIRC, he's tried to reseal it a number of times as well with the tape to no avail.

 

[Kurt_Nelson]

Just because it doesn't visibly come off into your tank doesn't mean it can't leach. To each his own. Just offering another opinion from someone that's used the stuff in an industrial environment.

 

[danno14]

Please bear in mind that both teflon tape and pipe dope (of this sort) both serve the same purpose = to reduce the friction of the joint to the point that the threads seal more securely against each other. This is why plumbing threads are tapered and machine threads are not. Tape and dope do work to some degree to "seal" gaps in the thread, but if that is what you are depending upon you are going about it the wrong way. On potable water joints, both are commonly used. On my tanks, I would opt not. JMO. D