Author Topic: Free Bentonite  (Read 4785 times)

Offline crueby

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Re: Free Bentonite
« Reply #15 on: August 15, 2020, 08:54:41 PM »
Awake - if the lumps in the used stuff are same size you need for your cores, nope, no problem.  :Lol:

Might be some odd odours from the foundry.....  :paranoia:            :Lol:

Oh, now that's a thought. Wonder if I can train the cats to pee in the proper patterns?
:paranoia: :paranoia: :paranoia:

Offline cnr6400

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Re: Free Bentonite
« Reply #16 on: August 15, 2020, 10:02:55 PM »
 :lolb:

Offline gerritv

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Re: Free Bentonite
« Reply #17 on: August 17, 2020, 03:40:06 PM »
@cnr6400 A friend in Hamilton gets his bentonite from Smelko, he is checking his pricing but it wasn't that pricey. He makes his own sodium silicate. That might be an option?
 Western Sand 100lb was maybe CA$20. He doesn't buy Pertobond due to price.

Gerrit
Don't confuse activity with progress

Offline cnr6400

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Re: Free Bentonite
« Reply #18 on: August 17, 2020, 06:17:01 PM »
Hi Gerrit, thanks for that info. Will your friend share his recipe for sodium silicate? I had no idea it could be made in the home shop / lab. Love to hear about how that works. It is difficult for individuals to buy small qty's of chemicals from chem supply firms nowadays here in Ontario. Got lots of salt, sugar, vinegar, washing soda, baking soda, lye (WC cleaner) and other grocery store bought chemicals though, and willingness to experiment!

 :zap:  :cheers:

Offline gerritv

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Re: Free Bentonite
« Reply #19 on: August 17, 2020, 06:39:57 PM »
I will get the recipe, I recall at one of our last in-person HMEC meetings he was showing how well it worked.

BTW, I have a photo of my brother standing in front of 6127 in 1953 outside Quebec City (I think they were re-watering) This was our intro to Canada, Halifax to Toronto on wooden seats.

Gerrit
« Last Edit: August 17, 2020, 06:49:50 PM by gerritv »
Don't confuse activity with progress

Offline cnr6400

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Re: Free Bentonite
« Reply #20 on: August 17, 2020, 08:14:48 PM »
Thanks Gerrit!

Great to hear you saw 6127 up close when you arrived here. The 6100's were great engines. If you ever go to downtown Hogtown (Toronto) you can see 6128 at the John St roundhouse rail museum, and lots of other interesting rail - related artifacts. Before pandemic they had several live steam locomotives hauling guests too. May reopen that next year.

Offline awake

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Re: Free Bentonite
« Reply #21 on: August 17, 2020, 08:42:52 PM »
Making Sodium Silicate - here is what the source of all knowledge (the internet) says:

    Wear proper safety gear, which includes gloves.
    Heat 4 to 8 grams of sodium hydroxide in 10 milliliters of water.
    Once the sodium hydroxide is dissolved, slowly add 6 grams of crushed silica gel beads. Heat the solution between additions. ...
    You now have sodium silicate or water glass.

Sodium hydroxide is lye, I thought - but maybe it can be bought in solid form and dissolved into water. I have to say, the above is a little too vague for my own comfort ...
Andy