Re: [ATM] masking for aluminizing

[Pete <lenses@adelphia.net>]

Hi All,

1. If you do use high vacuum grease, very sparingly (think thin)
2. Kapton tape works but not easily obtainable and expensive. (We have 
used it in the shop up to 300 deg C )
3. Regular old masking tape works as long as it doesn't get hot.
4. Plastic tape (not electrical tape is a better cheap choice for tape.)

Now a question, what don't you want coated?

Hope this is helpful,

Peter Nance, Jr.
lenses@adelphia.net

George Anderson wrote:
> Thanks Richard
>
> We probably have some high vaccum grease in the lab at work (we have a
> setup for making specialized wavelength lamps) and I'll see what I can
> scrounge.
>
> George
>
> Clear skies and good health
>
> Richard wrote:
>   
>> Hi tillerman1,
>>
>> Tuesday, January 17, 2006, 2:31:22 PM, you wrote:
>>
>> tvc> What is the best/easiest method for masking surfaces not
>> tvc> to be aluminzed while a mirror/lens is in the
>> tvc> chamber?
>>
>> Probably any type of paint would work, but it is very bad for
>> the high vacuum system. If you have access to it, Edwards High
>> Vaccum grease will stop the Al sticking and won't upset the HV
>> system. Don't use anything that is likely to outgas.
>>
>> --
>>
>> Best regards,
>>   Richard in the UK
>>
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>>     
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>   

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