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| Plug Building - Got Wood? Got Plug? |
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10-20-2006, 06:19 PM
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#1
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Registered User
Join Date: Oct 2002
Location: Kentucky
Posts: 1,442
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Bondo, yeah the stuff you use to patch your cars with, can be used to make molds. You'll never use these for production (they'll start to deteriorate before you make enough), but good for doing a few for yourself.
Jigman
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10-20-2006, 06:26 PM
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#2
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"Fishbucket"
Join Date: Feb 2004
Location: Bahston Hahbah
Posts: 6,588
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yeah ditto..
bondo...
you can cast exact copies of "stuff " too
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10-20-2006, 06:56 PM
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#3
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Registered User
Join Date: Nov 2004
Location: plymouth,ma
Posts: 1,142
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I'll give the bondo a shot, I was thinking I could make a mold out of plaster, I'll do some experimenting and see what I like and how they hold up.
And beyond my plug bag I've got absolutely zero interest in production.
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10-20-2006, 06:59 PM
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#4
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"Fishbucket"
Join Date: Feb 2004
Location: Bahston Hahbah
Posts: 6,588
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lemmie see if i can dig up some mold pics i made..
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10-20-2006, 07:04 PM
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#5
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...
Join Date: Jan 2004
Location: MA/RI
Posts: 2,411
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There are mold makers in RI that no longer make molds because there is no work. I bet you can easily find someone to cast you a production mold.
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10-20-2006, 07:47 PM
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#6
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Shorts and Sandals
Join Date: Jan 2003
Location: southeastern mass
Posts: 597
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DJ don't waste yout time with plaster. If you don't get all the moisture out it will steam up when you put the tin in and fall apart. I spent a lot of time on a mold a few years ago for zero results. Try Bondo it will be a lot faster. I'm curious as to how long a bondo mold will last.
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10-21-2006, 06:27 AM
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#7
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Keep The Change
Join Date: Oct 2000
Location: The Road to Serfdom
Posts: 3,275
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The different metals get alloyed in a foundry where you melt the different metals together usually above the melting point of the metal with the highest melting point. Interestingly enough, once the metals are combined in solution, the melting point of the alloy is something completely different.
To seperate them, they need to be refined so be careful of contamination..
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“It’s not up to the courts to invent new minorities that get special protections,” Antonin Scalia
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10-21-2006, 09:41 AM
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#8
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Registered User
Join Date: Jul 2003
Location: NJ
Posts: 869
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Quote:
Originally Posted by Fishpart
The different metals get alloyed in a foundry where you melt the different metals together usually above the melting point of the metal with the highest melting point. Interestingly enough, once the metals are combined in solution, the melting point of the alloy is something completely different.
To seperate them, they need to be refined so be careful of contamination..
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Yes ,when youre speaking about a 60/40 blend for example this maye be True, the exception though would be the small quantities of copper or SILVER for example which have much higher melting points, those are added as a POWDER (I think) , which is how they can be put into solution. I dont think they bring the entire pot to the melt point of silver or copper. I dont know the exact process because the industry is pretty secretive about how they create their alloys. Ive seen pictrures of he labs where they do their testing, but not many people are allowed in. |
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10-21-2006, 03:57 PM
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#9
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Keep The Change
Join Date: Oct 2000
Location: The Road to Serfdom
Posts: 3,275
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Quote:
Originally Posted by Tinman
the industry is pretty secretive about how they create their alloys. Ive seen pictrures of he labs where they do their testing, but not many people are allowed in.
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“It’s not up to the courts to invent new minorities that get special protections,” Antonin Scalia
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