off ebay. Now, Walmart carries in the laundry section for about 3 bucks per
55oz box.
On Thu, Jun 23, 2011 at 7:07 AM, Jim Ash <ashcan@earthlink.net> wrote:
> **
>
>
> Washing soda is sodium carbonate (per wikipedia). IIRC, it's what I used to
> use to raise the PH in my pool years back. I think they called it PH-UP or
> some such marketing name.
>
> I offer this because it seems like there can be widely-varying
> prices-per-unit-quantity for the same stuff depending on where you get it.
> Years back, I ran across some 'magic' rust-inhibitor called 'Extend'. After
> some research, it turns out it was basically just phosphoric acid repackaged
> and sold for a lot more than it should have been. I also recall a guy I
> worked with (who should have known better) spending $20 ($19.95, not
> available in stores, act now, ...) for a magic thawing tray that would
> quickly thaw meats laid on it. When he decribed it to me, it was obvious it
> was just some metal with good heat conduction and some surface area. After a
> little more discussion, I laughed at him and told him he just bought a
> way-overpriced slab of aluminum. As an aside, we've got an aluminum griddle
> that we also use to quickly thaw meats the same way. Not quite its intended
> purpose, but hey...
>
> I don't know the price-per-pound difference in washing soda from the
> grocery vs the pool store vs whereever else you trip across it. There's a
> point where if it's only a few cents and the more expensive store is closer,
> it might not be worth your drive to go further. When I have choices, I try
> to avoid sources where the magic goo is intended for human ingestion
> (especially health-food stores). Hardware and feed stores are usually better
> (reference the bentonite discussion). I'm not quite sure where pool
> chemicals fit in the price continuum.
>
> The catch is to be knowledgeable if you can. I don't always win, but I do
> try.
>
> Jim Ash
>
>
> -----Original Message-----
> From: joel wahl
> Sent: Jun 23, 2011 3:14 AM
> To: gingery_machines@yahoogroups.com
> Subject: Re: [gingery_machines] flux
>
> why do you need to turn your source aluminium, to ingots first before
> casting?
> And where do i find washing soda?
>
> thanks joel
> --- On Wed, 6/22/11, Malcolm Parker-Lisberg <mparkerlisberg@yahoo.com>
> wrote:
>
> From: Malcolm Parker-Lisberg <mparkerlisberg@yahoo.com>
>
> Subject: Re: [gingery_machines] flux
> To: gingery_machines@yahoogroups.com
> Date: Wednesday, June 22, 2011, 7:08 PM
>
> Jim
>
> You don't need a flux when melting aluminium. Use a twist of aluminium foil
> with LoSalt in it to degas and a twist of aluminum foil with washing soda in
> it to increase fluidity. Stir in both, one at a time, just before pouring,
> skim then pour.
>
> Turn your source aluminium, to ingots first before casting.
>
> Malcolm
>
> I don't suffer from insanity I enjoy it!
>
> --- On Thu, 6/23/11, Jim Ash <ashcan@earthlink.net> wrote:
>
> From: Jim Ash <ashcan@earthlink.net>
>
> Subject: Re: [gingery_machines] flux
>
> To: gingery_machines@yahoogroups.com
>
> Date: Thursday, June 23, 2011, 12:56 AM
>
> Somewhere I heard/read about using borax, but then I just saw on the
> backyard metal casting site somebody's recommendation to NOT use it because
> it's reactive with aluminum. Can somebody with a better knowledge of
> metallurgy/chemistry comment on this?
>
> Jim Ash
>
> -----Original Message-----
>
> From: matrice197
>
> Sent: Jun 22, 2011 5:07 PM
>
> To: gingery_machines@yahoogroups.com
>
> Subject: [gingery_machines] flux
>
> I work at a Galvanizing plant, we use ammonium cloride as a flux. Can I use
> this for my aluminum casting?
>
> Thanks,
>
> Chris
>
> [Non-text portions of this message have been removed]
>
> [Non-text portions of this message have been removed]
>
>
>
--
Nick A
"You know what I wish? I wish that all the scum of the world had but a
single throat, and I had my hands about it..." Rorschach, 1975
"They that can give up essential liberty to obtain a little temporary safety
deserve neither liberty nor safety."- Benjamin Franklin, Historical Review
of Pennsylvania, 1759
"Suburbia is where the developer bulldozes out the trees, then names the
streets after them." Bill Vaughan
"The price of apathy towards public affairs is to be ruled by evil men."
Plato
[Non-text portions of this message have been removed]
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