Flexible Resin for Tires that can Stretch

[cherokeered]

Looking for the best resin to use in making a flexible tire that can be stretched from say a 14" to 18" scale size. I know a lot of people make then out of regular hard resin but I need a resin that can stretch. I like the Alumilite products for there standard resin but do they have a good stretchable resin? Like the Flex 40 or Flex 30 even... for example. Anyone with experience in this please chime in.

Edited January 13, 2013 by cherokeered

[Lownslow]

flex 30 is your best bet but thats a heavy stretch even when i did it it was pushing the tolerance bounds.