Is PVC "hard"?
Trick question: Which plastic on this chart is "hard"?
http://www.ides.com/property_descrip...sion-chart.asp
Of course it's not just the hardness of the plastic but the shape of the tread/cleat as well. Pointy "soft" plastic could cause more damage to the carpet than rounded "hard" plastic.
I can get around the "hard" plastic restriction but I'm stumped by the <R08> restriction on "other attachments".
Question
If I
fabricate a track (<R08>) by fastening rubber treads to a chain, are the tracks ruled illegal (i.e. violate <R08>) because they have "other attachments"?