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Rusty Firebox

 
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The Midnight Smoker BBQ
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Joined: 23 Jul 2011
Posts: 72
Location: Antelope, California

PostPosted: Fri Oct 17 14 8:02 am    Post subject: Rusty Firebox Reply with quote

So I was medically unable to use my Lang 60 Deluxe for quite some time and now find the outside of the firebox is pretty rusty. What is the best way to remove this stuff? I want the best possible way because I don't want to lose my Lang but please keep in mind that due to my recent medical injury I am unable to put a lot of hard work into it. If necessary I can hire out someone but I would like to do it myself if I can.
so what needs to be done to remove the rust?
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Steve Whiting
The Midnight Smoker BBQ
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k.a.m.
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Joined: 12 Dec 2007
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Location: Southeast Texas.

PostPosted: Fri Oct 17 14 8:23 am    Post subject: Reply with quote

Pics of this would help. Wink
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Smokin Mike
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Joined: 02 Dec 2008
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Location: Winston-Salem, NC

PostPosted: Fri Oct 17 14 8:34 pm    Post subject: Reply with quote

This is my "go to" disk for removing rust. It'll take care of the job quick, fast, and easy but it's not so aggressive that it digs into the metal. Home Depot use to sell these, but at my local store they've replaced them with some cheap crap alternative. You can find these on Amazon. Yes, you should wear gloves and a dust mask. the job is IMO not very exertive, but I don't know your limits so if you can't handle a 4-1/2" grinder then hire it out.



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seattlepitboss
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Joined: 28 Oct 2008
Posts: 573
Location: Seattle, Washington

PostPosted: Mon Nov 10 14 1:36 pm    Post subject: Reply with quote

There are a LOT of ways you can remove rust! See for example:

1. wire brushing
a) wheel mounted on angle grinder or die grinder
b) wheel mounted on stationary spindle
c) hand wire brush

2. 3M pads/sanding/shop cloth/3M bristle discs
a) hand rubbing with sandpaper/3M pad
b) various sanders or Rolocs
c) applying shop cloth to rotating workpiece
d) 3M bristle discs mounted on angle grinder or die grinder

3. pneumatic needle gun

4. chemical soak
a) acid pickle
b) (for formerly galvanized parts only) lye soak
c) naval jelly
d) phosphoric acid (Metal Prep, brushed on or immersed in)
e) chelating agents (Evapo-Rust)

5. electrolytic derusting

6. blasting
a) outdoor sandblasting (with various media)
b) cabinet blasting (with various media)
c) spot blasting with or without vacuum attachment

7. barrel tumbling with or without various media, surfactants and/or fluids

8. vibratory tumblers with variety of media

9. application of hot carbon monoxide (oxy/fuel torch, rich mixture)

For your purpose have a look at #2 above. Buy a few maroon 3M pads from an automotive paint store and try just rubbing on the rust with your hand. Lots of times the rust will be pretty loose and it will just come right off and also this will scuff the paint around the rust which will prep it for repainting. If this doesn't work, I'd go to some kind of powered applicator for derusting mechanically. My favorite at the moment is 3M bristle discs. But those are very aggressive indeed. You could also get one of the more gentle cup brushes which thread onto the arbor of an angle grinder, and try gently sweeping it over the area.

The idea is to try gentle first, and then get tougher.

Keep track of what paint you use, and where you bought it. Repainting fireboxes is pretty much an annual chore around here. Not that I worry overmuch about it.

seattlepitboss
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Pkerchef
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Joined: 03 Jun 2007
Posts: 313
Location: Pontotoc Ms

PostPosted: Sun Nov 23 14 6:56 pm    Post subject: Reply with quote

Once you get the rust removed try spraying the firebox exposed metal with Pam or some other spray oil. The addition of the oil will do like a black skillet and help protect it in the future. I got sick of painting mine and now use the Pam method instead. I buy the 2 pack of pan release spray from Sam's that way i always have extra. Cheaper than paint too. Pkerchef
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k.a.m.
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Joined: 12 Dec 2007
Posts: 26010
Location: Southeast Texas.

PostPosted: Mon Nov 24 14 8:35 pm    Post subject: Reply with quote

Pkerchef wrote:
Once you get the rust removed try spraying the firebox exposed metal with Pam or some other spray oil. The addition of the oil will do like a black skillet and help protect it in the future. I got sick of painting mine and now use the Pam method instead. I buy the 2 pack of pan release spray from Sam's that way i always have extra. Cheaper than paint too. Pkerchef

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This. Very Happy

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