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Old 06-19-2005, 06:03 AM   #1
Pete B's Avatar
Join Date: Oct 2004
Location: Tolland Ct.
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I crawled under the RV today to look at the propane tank. The paint is coming off in sheets and the metal underneath is rusted. This is a two year old Brave. Should the paint be coming off so soon? Is it ok to just repaint it or should I have it replaced? Has anyone else had this problem?

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Old 06-19-2005, 07:05 AM   #2
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Location: Back at the ranch
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Pete - try calling a propane supplier and asking that question. I know that the suppliers routinely repaint tanks and keep them in service for many years.

If it were my tank, I wouldn't be too concerned unless the welds were really rusty. If the tank welder didn't do a good with his weld, and it got real rusty, that might be a weak point.

If it is all just surface rust that probably means the tank wasn't prepped properly before painting. Then you can wire brush it, paint with Ospho a couple of times, then spray paint or brush paint it.

First thing though is to get a qualified opinion from a propane dealer and go from there.



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Old 02-04-2009, 03:54 PM   #3
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Join Date: Nov 2003
Location: Blue Water Isles, Michigan, USA
Posts: 322
Did a search and found this thread.

My Propane tank paint was starting to peel off in sheets as Pete B described above. I began to scrape the tank and all the paint came off in sheets 3 to 5 sq. inches in size. When I was done the entire cylinder portion of the tank was bare metal covered in surface rust. However the two rounded “ends” the paint was still intact. When I peeled off the paint sections it sounded like when you pull duct tape off the roll however the metal was covered with surface rust.

I am treating the rust with Jasco Prep & Prime first probably with at least two coats.

Manufactures overview:
“You don't have to remove all rust on metal before painting. Rusted metal is converted overnight into a black, rust-retarding paintable surface after using Jasco Prep and Primer. Converting rust from iron oxide to iron phosphate, this product prepares the metal surface for paint or auto body filler to have maximum adhesion and longer life. After it is applied, degrees of color change may vary from metal to metal but usually will turn to a whitish-gray powder, and then black, to show a chemical reaction occurred.”

I rigged a sanding “belt” about 40” long of Duct Tape and a 20” section of emery cloth sand paper in the center to sand the top of the tank. Not much clearance above the tank. The belt worked out well.

After treating with Prep & Prime I will use Rust-Oleum Stop Rust RUSTY METAL PRIMER and Finish Coat of Rust-Oleum Stop Rush Semi Gloss White both are Oil Base.

I have asked two different Propane dealers and several other RV’ers and all say it makes no difference if you paint the tank empty or full of propane.

Checked the price of a new LP tank and was quoted:
“The LP tank comes with everything that is bolted to the tank itself (fill
valve, floats, sender, service valve) it does not comes with hoses or
the regulator. Price for the LP tank is $692.40 and is in stock.” Plus shipping and installation I am sure.

Suggestions Welcome.
Bob&Pat Blue Water Isles, MI
2003 Itasca Sunrise 36M-F53 HHR toad
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Old 02-05-2009, 06:31 AM   #4
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I repainted our tank 2 years ago using almost the exact same method and materials as Bob&Pat describes in the previous post. So far all is well with no signs of rust or peeling paint.

If you decide to paint your tank be prepared for a long afternoon of rust and dust. You'll be happy with the results if you take your time and eliminate all the rust and peeling paint before you prep and repaint.
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Old 02-05-2009, 05:47 PM   #5
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I'm using this...really tough coating and applies well...don't be scared off with the price....it spreads pretty well...1/2 small can will work. I bought six pack and use as needed..

Pubtym, 20th SOS "Green Hornet" , Viet Nam 68-69,
2015 Thor A.C.E 29.3
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