From: Guy Brandenburg 
To: scottythefiddler 
CC: Vero and Lisa Joseph ,  atm{at}shore.net
Reply-To: Guy Brandenburg 


We use cheesecloth and it works fine. Guy Brandenburg

scottythefiddler wrote:
> This from ATM1, published by Willmann - Bell, p.  445,
>
> "Melted pitch will not strain through muslin.  Use cheese cloth, and double
> it once or twice.  This removes any grit that may be in the pitch."
>
> Haven't tried this....hope you get satisfactory results.
>
> sd
> ----- Original Message -----
> From: "Vero and Lisa Joseph" 
> To: 
> Sent: Monday, March 17, 2003 6:59 AM
> Subject: ATM Straining Pitch
>
>
>
>>G'Day folks,
>>
>>Whist polishing my 300mm f6 plate mirror on a concrete tool topped with
>>burgundy pitch, the mirror developed some long thin scratches. These have
>>not polished out and I have decided to go back to 600 grit to remove the
>>scratches. I want to reuse the pitch and pour another lap but I am
>
> concerned
>
>>that some dust off the conrete tool may also become recycled. I vaguely
>>remember hearing out straining pitch through stocking to remove such
>>particles. Any clues about how to do this and whether it is even the right
>>method?
>>
>>Thank you in advance
>>Vero Joseph
>>Goulburn, NSW Australia (look forward to seeing all down under attending
>
> the
>
>>South Pacific Star Party)
>>
>>
>>
>
>
>
>
>

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