The preferred crosslinking acrylic copolymer for use as a binder in the present invention is an aqueous carboxyl modified acrylic copolymer known as Hycar™ 26315 available from the BF Goodrich Company of Brecksville, Ohio, and having a glass transition temperature of about 55 degrees C. This same companys Carbocure™ TSR 72, having a glass transition temperature of 72 degrees C. works almost as well, but {HEAD ~ the mat} made using this binder may be too stiff for {TAIL ~ some applications} 
The preferred crosslinking acrylic copolymer for use as a binder in the present invention is an aqueous carboxyl modified acrylic copolymer known as Hycar ™ 26315 available from the BF Goodrich Company of Brecksville , Ohio , and having a glass transition temperature of about 55 degrees C. This same companys Carbocure ™ TSR 72 , having a glass transition temperature of 72 degrees C. works almost as well , but { HEAD ~ the mat } made using this binder may be too stiff for { TAIL ~ some applications }
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