Post-Hydro and O2 cleaning for AL cylinders - "Crystal" or "Aircraft & Precision" Simple Green?

[-JD-]

My Luxfer 40 is getting hydroed tomorrow and I'm going to have to clean it after.

Does anybody know if the Simple Green Aircraft & Precision 02 is safe and maybe better than the Simple Green Crystal for Al tanks? I've read that the Crystal and standard SGs can be damaging to Al alloys.

I have both on hand.

Simple Green Aircraft & Precision
- Simple Green | Industrial | Extreme Aircraft Precision Cleaner
- https://cdn.simplegreen.com/downloads/SDS_EN-US_SimpleGreenExtremeAircraftPrecisionCleaner.pdf

Simple Green Crystal
- Simple Green | Industrial | Crystal Industrial Cleaner Degreaser
- https://cdn.simplegreen.com/downloads/SDS_EN-US_SimpleGreenCrystalIndustrialCleanerDegreaser.pdf

 

[Jimchris]

I can't speak for using either product, but I use blue gold for cylinder tumbling/rinsing.

 

[runsongas]

crystal, unless if you have really greasy tanks then maybe consider using the aircraft first then crystal for the 2nd rinse

 

[jgttrey]

Might be worth checking to see if the hydro facility offers oxygen cleaning as well. Where I get my cylinders hydro'd, you can have the cylinder chemically cleaned to O2 standards at the same time.

 

[rjack321]

They are both fine

 

[-JD-]

I can't speak for using either product, but I use blue gold for cylinder tumbling/rinsing.

Well, yea, but I don't have that on hand ATM.

crystal, unless if you have really greasy tanks then maybe consider using the aircraft first then crystal for the 2nd rinse

They are both fine

Thanks, gentlemen!

Might be worth checking to see if the hydro facility offers oxygen cleaning as well. Where I get my cylinders hydro'd, you can have the cylinder chemically cleaned to O2 standards at the same time.

What I really need to find out is if they shot-blast for when it is time for my steels to be done ... All in one would be great, but they are a small local "Jack of all trades" gas shop.

 

[Ulfhedinn]

Might be worth checking to see if the hydro facility offers oxygen cleaning as well. Where I get my cylinders hydro'd, you can have the cylinder chemically cleaned to O2 standards at the same time.

That would great if my shop did that.

 

[-JD-]

No cleaning nor shot-blasting available, unfortunately.

 

[Pao]

Blue Gold cleans faster but Crystal also works.

 

[happy-diver]

The dive shop guy uses dish washing liquid from the supermarket, lavender, yuck!