[pianotech] Misc., but on topic...of sorts<G>

[Ron Nossaman]

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