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  #55  
Old 03-31-2005, 08:41 AM
Lani McGregor
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Re: Kugler and Viscosity

Quote:
Originally posted by Durk Valkema
Klaus never indicated numbers for compatibility just an indication "Harte W" which you could read as an indication for viscosity because it indicates if it's a hard or soft glass. To bad Klaus passed away last year, but I will try to find out more about the origins.
Wow, very interesting! Thanks, Durk!

I assume "W" = weich (soft)

So Klaus Kugler was comparing - or categorizing - his colored glasses based on the differences in their viscosities (hart/weich - hard/soft), NOT on their COEs.

Did that information travel with the bars? Does anyone who used Kugler in the '70s or '80s remember these ratings?

Last edited by Lani McGregor; 03-31-2005 at 08:43 AM.
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