A materials mystery: What the heck are self-healing cutting mats made from? And a possible alternative - Core77

Last year Core77 forum moderator Timf posted, The other day one of my students asked me what a self healing cutting mat is made of. I have done a search and only found the mysterious phrase "made of a unique self healing composite material". Does anyone know what they are

FanFlex: Lightweight flexible crests and patches that fold easy. - FanTex: An all-new super comfortable soft fabric. - FanFit: The authentic on-ice

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