Water tank sealing

This topic has 3 replies, 3 voices, and was last updated 9 October 2026 at 20:12 by noel shelley.

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9 October 2026 at 17:09 #868674
Garry Coles
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@garrycoles69390
Hi, I’m just in the middle of building my water tanks for my 5 in G in brass sheet. I intend to seal them when there built using soft solder. Is there another way of sealing them, IE water tank sealer paint or is the method using soft solder ok. Any ideas please.

Garry
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9 October 2026 at 18:19 #868687
JasonB
Moderator
@jasonb
Probably better to solder as you build not after. Tin all the mating surfaces and once all has been rivited together the joints can be sweated together. That is how I did the tenders on my two traction engines.
9 October 2026 at 18:54 #868691
Garry Coles
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@garrycoles69390
Ok, thanks for that Jason
9 October 2026 at 20:12 #868704
noel shelley
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@noelshelley55608
As Jason has said, tin the component parts then when assembled heat and solder to seal. Capiliary action will hold the solder in the joint. Noel.
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Water tank sealing

Water tank sealing

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