[Rockhounds] Re: grinding specimens for cabs, ...What coating to keep bri...

[VevaBailey at aol.com]

No BK, they are fahrenheit, unless a person is a science major we don't use  
celsius. 
 
Veva B
 
 
In a message dated 12/1/2008 5:33:24 P.M. Pacific Standard Time,  
codeburner at gmail.com writes:

I assume  those temps are Celsius.

BK

On Mon, Dec 1, 2008 at 20:21,  <VevaBailey at aol.com> wrote:

> Hi Kevin,
> Opticon is the  best thing to use.
> Use it the way it says on the can, but I was  advised by my lapidary
> instructor to add more catalyst than  recommended.
> I believe the instructions say to soak over night in the  Opticon and then
> remove stones put the excess Opticon into another  container and add
> catalyst
> pour over the stones again let set  for a while then bake.
> Bake in an oven at 50 degrees and after 30  minutes turn up the temp another
> 50 degrees, continue this baking  method until your reach 250 degrees, bake
> for
>  30 minutes  and then start turning down the heat 50 degrees at a time until
>  you  reach your starting point.
> I usually let the stones set over  night before trying to work them.
> Charolite is done the same way. And  turquoise can be worked that way too.
> It has been 5 years since I used  this product but it really worked for me.
> I have a large slice of  Charolite that I almost lost due to crumbling but
> managed to salvage  most of it by using Opticon.
> If there is anything else I can help you  with, let me know.
>
> Veva  B.
>
>
>
>
> In a message dated 12/1/2008  4:13:44 P.M. Pacific Standard Time,
> Paintricks at aol.com  writes:
>
> Hello,
> I just acquired a cabbing machine and  am learning  to work  material.
>  While
> some  material is easy to cut and  polish(silica material),  some  comes
> apart,
> like Malachite.
> What's a good coating to  prep material like this to keep it together   when
> working  with smaller or thinner  pieces?
> Thanks,
> Kevin
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than the day."

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J Bryan Krämer
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