Phosphoric Acid for rust cleaning / inhibitor: Mixture and Procedure

[jellycatsdad]

I use Ospho, it is pretty much a standard in the marine industry.

Ospho

I’ve used it on the exterior of my tanks over the hydro stamp before Rust-Oleum. Is it safe for the insides too?

 

[rjack321]

I’ve used it on the exterior of my tanks over the hydro stamp before Rust-Oleum. Is it safe for the insides too?

It's fine. It's basically just an acid so once it's drained and dried there's nothing left to volatilize

 

[happy-diver]

https://www.global-mfg.com/Downloads/SDS-GSMoT-Acidic-Tank-Cleaner-42070-version-2.pdf

 

[lexvil]

It is like parkerizing the tanks

 

[flymolo]

would you consider a tank "clean" for oxygen after using this? Or do you take extra steps like using detergent

 

[stretchthepenn]

would you consider a tank "clean" for oxygen after using this? Or do you take extra steps like using detergent

The tank would Definitely Not be oxygen-clean after an acid-wash. You'd need to follow the standard oxygen-cleaning procedure afterward.

 

[grantmac]

The tank would Definitely Not be oxygen-clean after an acid-wash. You'd need to follow the standard oxygen-cleaning procedure afterward.

I'd be curious to hear your logic behind this?