Inquiry (采购产品): hard/flexible polyurethane I'm looking for a polyurethane that will be used to manufacture rock climbing grips. The plastic needs to be hard enough not to deflect under load (up to 800 psi?) but flexible enough such that the part will not break when bolted to the wall.Similar to resin used for skateboard wheels/rollerblade wheels. Thanks, Tom Wight **** Hidden Message ***** Tom Wight 91006 USA Company: Jungle Gym Rock Climbing E-mail: tom@junglegymclimbing.com **** Hidden Message ***** tom@junglegymclimbing.com