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"Advice on metals and more." Topic

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720 hits since 14 Jul 2016
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FusilierDan Supporting Member of TMP14 Jul 2016 7:02 a.m. PST

In a moment of enthusiasm I bib on some Zinn Brigade molds and won. Now I'm looking for advice on which type of metal is needed to cast the figures with and who online would have a good price and service. I've been to the Dunken's and Miniature Molds sites. Any others?

I haven't checked out any tutorials other than the ones on Dunken's so am looking for recommendations there also.


FABET0114 Jul 2016 8:27 a.m. PST

How about Prince August:

Personal logo Sgt Slag Supporting Member of TMP14 Jul 2016 12:17 p.m. PST

What type of casting will you be doing: gravity/drop, or spin? This will affect which metals will produce better quality.

Also, are you interested in quality, or quantity at a low price? Lead can be had for free, from tire shops -- they pay to dispose of used lead tire weights! Pure lead is of little hazard to humans, even if ingested: it will harm you mechanically, but the digestive juices will have little impact on it as it passes (hopefully!!!) through your body. Lead-oxides mixed with paint, is far different, and vastly more toxic… Cheers!

Kropotkin303 Supporting Member of TMP14 Jul 2016 3:26 p.m. PST

I am a drop caster using RTV moulds. Generally I find that the more "modern" metals give a better cast than using higher lead content. Not sure what "modern" metal really is but I find that sprue from say, Foundry Miniatures will give a crisper drop-cast than a bunch of old "lead" from 20 years ago.

Having said that it is also quite dependent on how hot the mould is.

A drop-cast mould has a window of opportunity. I find that the first casts are not good, then the mould heats up and things cast OK, then it gets too hot and the casts deteriorate.

Hope that helps.

goragrad14 Jul 2016 8:20 p.m. PST

Actually, the local tire shop is starting to charge for lead weights.

Cost me about 5.00 for 20 pounds a year ago (4 years ago I got about 200 for nothing just hauling it off).

As scrap they run about .50 a pound.

Tire weights have a bit of bismuth to reduce shrinkage on cooling. Otherwise it is as I recall about 3 percent.

Last gravity casts I ran were problematic – old lead soldier casting set. Plan on preheating the molds next go round.

Do have some miscellaneous sprue clippings and other trim form minis to use at some point. Will probably end up being about 60 tin 40 lead.

altfritz16 Jul 2016 2:22 p.m. PST

"Pure lead is of little hazard to humans"

Really? Whatever happened to lead poisoning, being absorbed through the skin and all that?

google found this:

"Lead is a highly toxic metal and a very strong poison. Lead poisoning is a serious and sometimes fatal condition. It occurs when lead builds up in the body.

Lead poisoning usually occurs over a period of months or years. It can cause severe mental and physical impairment. Young children are most vulnerable.

Children get lead in their bodies by putting the lead containing objects in their mouths. Touching the lead and then putting their fingers in their mouths may also poison them. Lead is more harmful to children because their brains and nervous systems are still developing.

Lead poisoning can be treated, but any damage caused cannot be reversed."

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