When I broke my leg I thought the cast material might be useful, got some off ebay, with the intention of some bike fairing bits. First attempt trying to use it to make some covers. I put cloth underneath for it to stick to, which will hold oil and keep any crap out like the felt wipers. I cut some lengths off and activated in water.. Did not seem to be setting. While I was doing that the dry roll seemed to be getting warm and setting, so quickly pulled it off and made the other bits. I think it needs to be stretched and wrapped round things rather than folded in lengths and pressed on them.