| Re: Natural Rubber - Non-Renewable? Raw rubber is a naturally occuring addition polymer. It is obtained by collecting sap from the rubber tree. It is the polymer of 2-methyl-1,3-butadiene (isoprene)
So from this I gather that its non renewable. However, to overcome these issues that have started polymerising butadience and styrene to form synthetic rubber which is a renewable resource I believe.
Perhaps if you give us the URLs of those sites that disagree?
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