I think glass is rated at 100 & polyester at about 80. Al - High Point, NC On Feb 24, 2012, at 5:58 PM, Ron Nossaman wrote: > On 2/24/2012 3:30 PM, Joseph Garrett wrote: > >> My question is: What, specifically is "Shore hardness"?? > > Hi Joe, > Shore is a set of scales to measure hardness ranges. Like the Rockwell scale for harder materials like steel. Shore A is for soft stuff like neoprene or cork/rubber gaskets and such. I suggested the Shore D scale, which should cover glue hardness ranges. The measurements are taken with a durometer which pushes a specifically shaped plunger into the measured material under a specified pressure load and measures penetration. > > If you need an evening's reading in more detail, google Shore scale. > > Ron N > -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20120225/45f2c004/attachment-0001.htm>
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