Notes on low-melting point metals

From: MensaDropout on Tuesday, August 07 2007 @ 01:58 AM PDT

Lead, Cadmium, etc. were considered safe materials not that long ago. Now we avoid them like the plague. The materials haven't changed our opinion/understanding of them has. I only say this, to caution against using safe materials. They may not always be considered safe. That said, with a filtered fume extractor around the hot air nozzle, i'd bet you could safely fab in any of the low melt alloys.

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From: ike on Tuesday, September 04 2007 @ 03:41 PM PDT

this might be wrong, but how about solder ? it must be pretty low, and could it be taken from a coil, melted and dropped off by a heat assisted syringe/ vat and valve type system?

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From: lawsonuw on Thursday, September 06 2007 @ 11:07 PM PDT

https://www.scitoyscatalog.com/Merchant2/merchant.mvc?Screen=CTGY&Store_Code=SC&Category_Code=H
this place sells various metal alloys that have a melting temp above and below room temperature. Not cheap stuff though. Other places should have better prices.

I think the key requirement for a medium is to have a very high viscosity when melted. Otherwise capillary action is going to quickly suck the melt into the surrounding powder.

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From: Anonymous on Tuesday, January 01 2008 @ 03:10 AM PDT

i heard somewhere that indium has a melting temp of approx. 100 degrees celsius. would this work?

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From: Anonymous on Tuesday, July 15 2008 @ 02:35 PM PDT

Have you considered alloys like Woods Metal or Fields Metal (Both listed on Wikipedia)

They both have low melting points (70degC for Woods, 62degC for fields) and should be worth consideration provided that availability and cost criteria are acceptable

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