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Old 03-31-2005, 07:41 AM
Lani McGregor
Posts: n/a
Re: Kugler and Viscosity

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 07:43 AM.
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