[Jewelry making - Article 00931] - Re: [Orchid] Magnesia soldering block

[Dave Arens]

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    Hi Beth & All 

>     It sounds as if, perhaps (crossing all her fingers), you have
>     found something different, Dave, and I would love to try it.  I'm
>     out of town at the moment and will check brickyards when I get back
>     to LA but I have a feeling this isn't a common item for brickyards
>     to stock.  If you can give me any additional information that may
>     help me locate these blocks or the manufacturer, I would be most
>     grateful. 

    I stopped at the brickyard today to check out the magnesia
    firebricks. 

    Here's what I found. 

    The brick I use is the lightweight magnesia fire brick. The brick is
    cream colored & is 2 1/2" x 4 1/2" x 9" & weighs 1 lb 14 oz. The
    surface was pock marked with small holes probably caused by minute
    air bubbles left from the casting process. The cost where I got mine
    was $3.45. 

    According to the  folks at the brickyard, they get these bricks
    from: 

	Thermal Ceramics
	2102 Old Savannah Rd
	PO Box 923
	Augusta GA 30903
	706-796-4200
	www.thermalceramics.com
	email: tceramics AT thermalceramics.com

    I bought a new brick to compare it with the ones I've had for some
    time. The new brick looked just like the older ones (only cleaner). I
    lighted a Prestolite torch with a # 3 tip & held it on the end of
    the brick until a large area of it glowed red. At no time while the
    torch was held on the brick or while it was cooling was there any
    smoke or aroma. After the flame was removed there was no
    decomposition of the brick & very little discoloration. 

Dave


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