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Originally Posted by basswipe
nebe I can very often get my hands on pure lead flashing.Let me know cuz we sometimes toss large amounts.
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If & when you have any flashing lead avail, I will buy, any large quantity. Pls email me.
thanks
JD
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As to the tire weights ,they are made of different alloys as every manufacturer has their own formula.They contain a lot of what are called tramp metals, and also intentional metals such as Antimony, which makes lead much harder, sometimes this is a good thing ,esp if you are making jigs that will be bounced off rocks, they wont dent as easily as with soft lead. The downside as mentioned before is that these jigs will be slightly LIGHTER & the MELTING point is much higher, most of the time you need the 20 lb electric melt pot at FULL power sometimes for 30 mins to get the temp up high enough, which is near 800 degrees. With pure lead which melts at 621, you dont need as much, 700 is more than enough.
Sometimes you need to clean the tire weights as they are caked with grease from other car parts. A pressure washer is ideal, but you need to make a special screen to put them in and hit them on a cement floor, then let them dry in the sun. Its worth the effort when the lead is FREE, which many times it is, but its labor intensive.
Also ,the guys at the tire station will toss in the rubber valves , as they use the same bucket as a trash can, so make sure you remove those.They will stink up the whole neighborhood if you dont.
If any of you guys need any really good Flux (free), let me know, I have some really good stuff I could send you. It will bring all the impirities to the surface, and make the lead pour quite nicely.
And pleaaaase Dont forget about ventilation. If you are new to casting, get someone to show you how first. Dont take any chances.