what paint to use on external oil tanks?

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  #1  
Old 06-02-09, 08:06 AM
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what paint to use on external oil tanks?

My tanks are out in the open and totally accessible due to another project so i was thinking now's a good time to paint them. Do i just use some rustoleum?

I'm thinking just a wipe down to get excess paint chips or dirt would be all i needs since this isnt an art project..right?
 
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Old 06-02-09, 10:13 AM
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Are these oil tanks?Do they have any rust?

Assuming yes to both you'd want to wash them down with mineral sprits to remove as much oil residue as possible and wire brush and/or sand them to remove rust build up.Once done make sure the tank is clean and dry.

Rustoleum is a brand name for a wide line of paint products.What you want to do is prime with their rusty metal primer first.You can then top coat with any color oil based enamel top coat and it does not have to be rustoleum brand but should be a top quality product.

This process would be a good idea even if these tanks do not contain a petroleum product.
 
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Old 06-02-09, 11:31 AM
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oil tanks yes, and are only 10 years old so no real rust that i can see, just dirty. and now it may rain for the next 3 days so i may not get a chance to even do this..but they are in the yard and totally accessible so i hope i can!

whats the time delay between primer and top coat? Maybe if i get a window of opportunity i can do it
 
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Old 06-02-09, 02:15 PM
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Depending on the type of primer, temp and humidity, the primer might be ready for recoating in as little as an hour or it may take 12 hrs or so. As long as the substrate is dry prior to applying the primer and has atleast an hour to dry [excluding down pour] you can post pone the finish coat for several weeks without any problems. The main thing to remember is no matter what brand of paint you use make sure it is solvent base!!! Latex paint/primer will not stop or hold back rust - you might even think they promote rust

Oh, almost forgot
if there is no rust, no raw metal and adhesion is not thought to be an issues - you can skip the primer
 
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Old 06-02-09, 02:36 PM
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hmmm well since cant hurt to do primer i may do it anyway even if it's not called for. the more the better lol. Plus never again will i get the chance to have these tanks removed

Temps should be 65-75 with 60-70RH

mental note made of solvent based paint. I assume that's what it will say on the can?

thanks
 
  #6  
Old 06-03-09, 03:45 AM
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Oil base is the most commonly used solvent based coating. basically the label will call for some type of solvent for clean up and/or thinning. If it cleans up with water - it's not the right type of coating.
 
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Old 06-03-09, 04:47 AM
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thanks for the clarification...and it looks like i have another week at least based on their workflow. I forgot the guy has to wait until the other job is done before pouring a new concrete pad then letting it cure a bit. So i have 1-2 weeks to complete this
 
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Old 06-03-09, 09:25 PM
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Give a good look to the tank paint along where the fill pipe is, and down to the bottom of the tank from it. Spilled drips can lift the paint and you'll see a bubble.

Are you painting them standard black ?
 
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Old 06-04-09, 07:00 AM
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actually they are grey..blend in with my house but wasnt my intent..they just came that way ..i got them free 10 years ago from my oil company...so ill probably stick with grey so it blends

raining today so ill have to take an closer look another time near the cap. Is muddy all in back of my house and getting around not fun now.
 
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Old 06-10-09, 11:58 AM
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i got a wire brush, 5 cans of metallic grey/alumnium, and went to town on the 80 degree sunday we had recently. Looks much better than before and with them being shiny will jazz up that corner of the house
 
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Old 06-29-09, 05:57 PM
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Since this thread will come up often on a search for this work, here is what I did...

Due to a leak on the bottom, near the valve, I replaced my old tank... Here is its carcass...



I was blessed to find a used Granby tank only a year or so old and in great shape, but it had the factory primer only. Got it for $75 + $30 gas for delivery. Cleaned it up good, inside and out. Made sure all oil was cleaned off of exterior and removed all top fittings to paint the bungs as well. I then used a good quality industrial OIL-BASED enamel. I used both brush and roller. I made sure to paint heavily the leg mounts (easy to start rust there). I took two days and three coats but it came out great I think...

I then made a good base and installed it... Here it is...



Rmpl
 
  #12  
Old 07-01-09, 04:00 PM
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Oil Tank

A few suggestions on your tank if I may:

1. Get rid of the pillars. They tend to hold water & rust the legs. Use solid concrete blocks.
2. Even if you intend to feed off the top, install a bottom valve to draw off moisture & sludge.
3. Slope the tank 1" toward the bottom valve.
4. Do away with the return line & install a Tiger Loop.
 
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