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Old 07-04-2019, 09:00 AM   #1
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Blasting/powder coating or replacing 30 gal propane tank

My 2003 Fleetwood Excursion 38U propane tank is nearly completely showing surface rust. The coach came from NE Mass - last owner must have driven through a lot of salt.

Thought about removing and having the 30lb tank blasted and powder coated, but starting to think I may be able to find a new one close to the price to resurface. Any thoughts about sources for a new tank that is reasonably priced (and has same size/mounting)?

Thanks.
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Old 07-04-2019, 02:35 PM   #2
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I recall that LP tanks have an expiration date stamped on them - may be difficult to read based upon the condition you described. Maybe call a local LP residential supplier and solicit their advice.
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Old 07-04-2019, 02:37 PM   #3
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I wire brushed mine primed the rust areas and painted
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Old 07-04-2019, 02:52 PM   #4
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There are two types of tanks. The ASME tanks are permanently mounted in the coach and do not require certification. Portable tanks, even if mounted in the coach, require re-certification periodically or they cannot be filled by reputable LP dealers.

If you have a propane dealer near you, go talk to them about the tank. You might find that they can order you a replacement for not much more than sending the tank for proper refinishing, and then you'll have a new tank without the worries of leaks.
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Old 07-04-2019, 02:53 PM   #5
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DOT, portable propane cylinders have expiration dates.

Mounted ASME tanks don't.

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Old 07-04-2019, 03:06 PM   #6
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Nobody is going to powdercoat an LPG tank. If they offer to, RUN AWAY!!!

Sandblasting causes static and that can cause an explosion, and prepping is an often imperfect process on used surfaces. Imperfect prep = poor coating and early failure. Powdercoating relies on static to lay down the powder, "outgassing" for a period of time at higher than cure temperature, and then the cure temp of ~400f (+/-) for 20 minutes (+/-) in an enclosed oven. I won't elaborate on the dangers there.

I'd go with a brisk brushing and a coat of POR-15 rust inhibiting paint.
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Old 07-04-2019, 04:07 PM   #7
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This is simple problem and only requires a simple solution. Wire brush or sand the tank and re-paint with brush or spray can. If really rusty, use a rust inhibitor or rusty metal primer first, e.g. Rustoleum Rusty Metal Primer, Corroseal, etc.





I'd be inclined to use a rusty metal paint such as POR-15, but any quality paint is usually adequate once the surface has been cleaned and prepped.





https://www.familyhandyman.com/paint...fore-painting/
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Old 07-04-2019, 04:07 PM   #8
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Quote:
Originally Posted by rodekyll View Post
Nobody is going to powdercoat an LPG tank. If they offer to, RUN AWAY!!!

Sandblasting causes static and that can cause an explosion, and prepping is an often imperfect process on used surfaces. Imperfect prep = poor coating and early failure. Powdercoating relies on static to lay down the powder, "outgassing" for a period of time at higher than cure temperature, and then the cure temp of ~400f (+/-) for 20 minutes (+/-) in an enclosed oven. I won't elaborate on the dangers there.

I'd go with a brisk brushing and a coat of POR-15 rust inhibiting paint.



Ding, ding, ding^^^^^


Wire brush, repaint....WHITE/Silver/Light Gray
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Old 07-04-2019, 05:13 PM   #9
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Some very good points. Wasn't aware about the risks, as the tank fittings would be removed. Understand and agree though. Easy enough to remove the tank and wire brush.

Great feedback by all - thank you. Thanks again, folks. Paul
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