TPO Rubber Membrane R&D

I am seeking a skilled chemist or materials scientist for a research and development project. The goal is to find a chemical composition that can prolong the life expectancy of TPO (Thermoplastic Polyolefin) rubber roofing membranes from 15 years to 30 years... (Budget: $10000 - $20000 USD, Jobs: 3D Modelling, CAD/CAM, Chemical Engineering, Materials Science, Mechanical Engineering, Product Development, Research and Development)