"Solder and bithmus" Topic
7 Posts
All members in good standing are free to post here. Opinions expressed here are solely those of the posters, and have not been cleared with nor are they endorsed by The Miniatures Page.
Please avoid recent politics on the forums.
For more information, see the TMP FAQ.
Back to the Moldmaking and Casting Message Board
Areas of InterestGeneral
Featured Link
Featured Ruleset
Featured Profile ArticleFundraising for our Christmas charity project.
|
MikeMonaco | 27 Nov 2018 12:33 p.m. PST |
OK here's a question. I have a kilogram of bithmus and a large supply of 60/40 lead/tin solder. The lead/tin is not bad for casting in PA and similar molds, but I was thinking adding some bithmus would help the metal fill the cavities better, since it expands on setting. Has anyone tried this and what would a good ration of bithmus to solder be? TIA |
Winston Smith | 27 Nov 2018 12:39 p.m. PST |
|
MikeMonaco | 27 Nov 2018 12:51 p.m. PST |
Yes, apparently I type with a lisp. |
martin goddard | 27 Nov 2018 1:43 p.m. PST |
I advise against using any bismuth whatsoever. It will make the castings VERY brittle. Up to you whether this information useful or not. I am sure others here are more expert. |
FusilierDan | 27 Nov 2018 7:02 p.m. PST |
If you do facebook you could ask on this group link |
Rich Bliss | 28 Nov 2018 9:57 a.m. PST |
You can start with about 2% and work your way up from there. I suggest setting up an experiment plan, since casting temperature and mold conditions will also effect the results. |
Steve Roper | 28 Nov 2018 6:06 p.m. PST |
I've used it at times for small parts that had trouble accepting detail. Here is the reference I used: link |
|