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Restricting solder when tinning

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PaulR:
I need to sweat two parts together - the 1"x1/8" flat and the 3/8" square bar at left. I've not done much soft soldering before so did a little experiment on some scrap brass parts (at the bottom) and was surprised how easy it was and how strong the bond is.

Anyway, when silver soldering in the past I've used 'correction fluid' to stop the solder flowing where it's not wanted. Will this, or something else, work for soft solder as I'd like to keep solder off the visible part of the flat bar?

pirmin:
try toothpaste  :thinking:

PaulR:

--- Quote from: pirmin on January 21, 2025, 09:27:38 PM ---try toothpaste  :thinking:

--- End quote ---
Might work. Anyway, I found this video which shows four different methods:

http://www.youtube.com/watch?v=h-fGOKsqdmg

tghs:
white-out can work in a pinch.. Ive used this product and it works well, mix only what you need,, one jar should be a life time supply  :cheers:

https://www.riogrande.com/product/rio-no-flo-anti-flux-powder/504080GP/?srsltid=AfmBOoqKx-GMhdZZR-c6RfAOHzMDJsK0N9RAJhVuSenBI1ENVS8VUfid&code=504080

PaulR:
Not sure if that's available in the UK but it looks to be basically the same as yellow ochre paint. Cheers, will file away the link for next time!

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