http://www.alumilite.com/Category.cfm?C ... e%20Rubber
http://www.alumilite.com/ProdDetail.cfm ... stic%20M-2
these rubbers are available in various SHORE A strengths
to see what SHORE A strength is like to things you know do a Google on shore A tables
shore 60 is roughly car tyre strength & is good for say the rubber inserts in motor cycle rear wheels
