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Post by Sicilianhunter on May 4, 2020 14:16:08 GMT -7
I bought a second hand tin canteen that had some rust in the bottom.
I used the trick where you put in a bunch of BBs into it and slosh them around inside until you’ve ground out the rust.
Apparently, it didn’t work as well as I thought and the rust is back.
Any suggestions?
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Post by paranger on May 4, 2020 15:09:26 GMT -7
If it's tin, it needs to be lined with pitch to keep it from rusting. Townsend sells brewer's pitch for something like $24 per pound.
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Keith
City-dweller
Bushfire close but safe now. Getting some good rain.
Posts: 990 
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Post by Keith on May 4, 2020 17:24:04 GMT -7
I seem to recall that white vinegar is good for removing rust, but afterwards you may still need to seal it as paranger suggests.
Keith.
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Post by Sicilianhunter on May 5, 2020 6:32:48 GMT -7
If it's tin, it needs to be lined with pitch to keep it from rusting. Townsend sells brewer's pitch for something like $24 per pound. PARanger, It is tin. Do you know the process for applying the brewers pitch to the inside of the canteen? |
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Post by Sicilianhunter on May 5, 2020 6:34:19 GMT -7
I seem to recall that white vinegar is good for removing rust, but afterwards you may still need to seal it as paranger suggests. Keith. Le Loup, Do I just fill it with the white vinegar and let it sit until it neutralizes the rust? |
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Post by hawkeyes on May 5, 2020 6:54:58 GMT -7
If you use vinegar absolutely neutralize the acid with soda. It will eat the daylights out of the tin. I'd clean it out best you can and line with pitch and be done.
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Post by artificer on May 5, 2020 7:03:48 GMT -7
I seem to recall that white vinegar is good for removing rust, but afterwards you may still need to seal it as paranger suggests. Keith. Le Loup, Do I just fill it with the white vinegar and let it sit until it neutralizes the rust? Not Le Loup, but yes leave it soak for two or three hours, pour the vinegar into a bowl, wash the canteen out with clean water a few times until you get clean water coming out, then taste it to see if it still has rust in it. If so, repeat the process by pouring the vinegar from the bowl through a coffee filter and back into the canteen and repeat. Brewer's Pitch must be heated in a double boiler of some kind. The canteen must be dry! You will need some heavy gloves and a funnel to pour the hot/melted pitch into the canteen. Roll the canteen around so all the pitch coats all over the inside with the stopper in place, then pull the stopper and immediately pour the pitch out. Normally that does the job, though sometimes you have to give it a second coat of pitch. Just make sure after you use the canteen you store it upside down with the stopper out, so it will thoroughly dry out. Had to do this on two tin canteens over the years. Finally when I got back to doing AWI in the late 1990's, I decided the permanent fix was to use a Stainless Steel Canteen, even though I may be tarred and feathered for it here. When you cover it with blanketing material, there is no way to know what it was made from, though. Gus |
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Keith
City-dweller
Bushfire close but safe now. Getting some good rain.
Posts: 990
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Post by Keith on May 5, 2020 16:05:22 GMT -7
I seem to recall that white vinegar is good for removing rust, but afterwards you may still need to seal it as paranger suggests. Keith. Le Loup, Do I just fill it with the white vinegar and let it sit until it neutralizes the rust? Yes, or at least as much vinegar as you need to cover the rust. As artificer says, leave for a few hours. Give it a good shake, you could even give it a shake with those BBs again. Then empty out & flush with clean water, let it dry & seal with pitch. Keith. |
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Post by Black Hand on May 5, 2020 18:02:22 GMT -7
My personal choice would be beeswax over pitch. It seems far more plastic than pitch.
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Post by hawkeyes on May 6, 2020 6:24:49 GMT -7
Keep in mind where you have rust you likely have no tin layer and just bare metal. Certainly make sure whatever sealing compound you use, the interior is well coated. I'd recommend you pre-heat the vessel before sealing.
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Post by Sicilianhunter on May 6, 2020 6:57:04 GMT -7
A thousand thanks for all of the advice!!
I will order the brewer's pitch and once I get it in hand, will commence with the project as I don't want to go through the vinegar process without having it first.
Once I have completed the project I will post the results!!
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Post by hawkeyes on May 6, 2020 7:04:39 GMT -7
A thousand thanks for all of the advice!! I will order the brewer's pitch and once I get it in hand, will commence with the project as I don't want to go through the vinegar process without having it first. Once I have completed the project I will post the results!! You can do the vinegar deal without pitching it right away. Just make sure you neutralize it with baking soda. |
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Post by Black Hand on May 6, 2020 8:27:36 GMT -7
And dry it thoroughly...
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Post by hawkeyes on May 6, 2020 10:28:48 GMT -7
Yes, I was just going to assume that was a given! |
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Post by Black Hand on May 6, 2020 14:11:38 GMT -7
Yes, I was just going to assume that was a given! I give all the information I have and let the recipient decide what they need.  |
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