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  #1  
Old 10-08-2012, 06:24 AM
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Cleaning bullet alloy off moulds


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I just finished a casting session and have some bullet alloy stuck to the top of the mould and to the bottom of the sprue plate. I've always been shaving this off carefully with a razor blade but now I'm curious how the rest of you do it. Appreciate hearing from you fellow casters.
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Old 10-08-2012, 06:39 AM
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With the mold still hot from casting I pour some lead on the smear of lead. When the blob of lead cools everything comes right off with no scrapping.
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Old 10-08-2012, 07:59 AM
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After your mold is clean try smoking it or a little alox will keep the lead from sticking.
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Old 10-08-2012, 09:57 AM
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I get it hot and rub it off with a scotch brite pad or cotton rag
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Old 10-08-2012, 08:57 PM
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thin copper or brass strips from hobby store, etc. I file edge sharp & use as scraper. touch a piece of bees wax & scrub with coarse cloth. To help prevent sticking, I rub underside of sprue plate & top of blocks with No.2 pencil..lubes surface also.
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Old 10-08-2012, 09:24 PM
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Take a Qtip and soak it in some 2 cycle oil.

Rub the oil-soaked Qtip aggressively on the lead while the mold is still hot. Should solve your problem.
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Old 10-09-2012, 05:03 AM
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Thanks guys for some really good tips.
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  #8  
Old 10-13-2012, 04:35 AM
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Quote:
Originally Posted by Kenai41 View Post
With the mold still hot from casting I pour some lead on the smear of lead. When the blob of lead cools everything comes right off with no scrapping.
Thankyou this works great
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Old 10-13-2012, 10:52 AM
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Some good tips!

Thanks!!!!!!!!!

Crusty Deary Ol'Coot
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  #10  
Old 10-15-2012, 12:26 PM
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I have used the rag on a hot mold method for quite a while. I believe the lead smears on the sprue plate are from cutting the sprues too soon. I like to use a q-tip to put a very thin coat of synthetic 2-cycle motor oil on the bottom of the plate and aligning pins.
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  #11  
Old 10-16-2012, 10:33 AM
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You can also rub a little powdered graphite onto the bottom of the sprue plate.
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  #12  
Old 11-13-2012, 04:34 AM
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Kroil will release the build up lead. and it works good inside as a release coating . just make sure the mold is hot when you put it in cavs so it can evaporate
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Old 11-15-2012, 02:28 PM
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More lead.
Like Kenai41 said.
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