View Full Version : Release agent?
jgh4445
02-07-2008, 10:13 AM
A friend made me a couple of ingot molds for my WW alloy out of a type of old square tubing material. They turned out about 2 feet long by 2 inches wide by 1 inch deep. He used a grinder to smooth out some areas and the grinder left the usual rough spots on an otherwise, pretty smooth surface. Other than the old "smoke it with a candle" deal, what other type release aids could I use to insure I don't permanantly fill one of these home made molds?
dubber123
02-07-2008, 10:38 AM
If they are truly square sided, it may be hard to get them to release no matter what, as all ingot moulds are tapered, being bigger at the top. I wouldn't fill both until you see it they will release at all. I believe Midway sells a spray product called drop out that might help.
jgh4445
02-07-2008, 11:22 AM
Thanks guys. Hadn't considered any of that. Looks like a change to angle is called for.
Calamity Jake
02-07-2008, 01:37 PM
Just drive a wedge of some kind between the walls to spread them open a little, 1°-2° on one side or both is all that is needed to get the ingots to fall out.
Be sure the welded ends ard angled out at the top also
Use a hand grinder to bevel the top edges a little will help.
trooperdan
02-07-2008, 04:30 PM
Huh, I would have cast them full and then been here with a silly look on my face, asking how to undo what I have did! :) Someone is smarter than I, asking first!
azcoyhunter
02-07-2008, 05:28 PM
I would think a little Rust would help to.
I know it helps mine
Clint
jgh4445
02-07-2008, 08:01 PM
....and just how do you reckon I learned to ask first?
birddog1520
02-11-2008, 08:46 PM
Cool,
I'm very new to casting my own and I'll have to remember that one.
Randy,The Birddog.
RU shooter
02-11-2008, 09:10 PM
Back to the original release agent question just set them out in the back yard for a week or two and let them get some surface rust on them.
runfiverun
02-12-2008, 12:21 AM
rust is a very good release agent
just not on your boolit moulds
runfiverun
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