General discussion > Gun Building

Filling a casting void using brass colored solder

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KShatwell:
I have a casting of a coffin lid Patchbox with a fairly deep void on the top edge of the lid . It is too deep to file out so my thought was brass colored solder.  Has anyone used this successfully and if so how was the color match?

Mike Brooks:
I've seen old pieces with voids filled with just plain solder and you can also solder in brass patches.  It all works.

Frozen Run:

--- Quote from: Mike Brooks on March 26, 2024, 06:09:51 AM ---I've seen old pieces with voids filled with just plain solder

--- End quote ---

Do you need to clean up and prep the area, similar to how a dentist drills out a cavity, prior to filling with solder? Or do you heat up the part and let the solder flow into the rough void? Thank you.

Mike Brooks:
Clean it up and Flux it first.

davec2:
This old post of mine might be a help....as Mike says, clean and flux the $#*! out of the void before you use any solder....

https://americanlongrifles.org/forum/index.php?topic=24222.msg232336#msg232336

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