In general, synthetic rubber has the following advantages over natural rubber: better aging and weathering, more resistance to oil, solvents, oxygen, ozone, and certain chemicals, and resilience over a wider temperature range. The advantages of natural rubber are less buildup of heat from flexing and greater resistance to tearing when hot. Butyl, also known as Isobutylene-isoprene (IIR), is a synthetic rubber developed in the 1940’s. It has exceptionally low gas permeability making it ideal for inner tubes and high pressure/vacuum sealing applications. ADVERTISEMENTS: Some of the most important properties of synthetic materials are as follows: 1. Tensile strength 2. Action of water 3. Action of heat and flame 4. Thermal conductivity 5. Electrical conductivity. The usefulness or otherwise of a synthetic material depends upon the following properties. 1. Tensile strength: This property gives us an idea of … UBE’s synthetic rubber business manufactures and sells polybutadiene rubber (BR), which is one of typical rubbers and polymerized with a cobalt catalyst. Synthetic Rubber - UBE INDUSTRIES,LTD. MENU All kinds of car parts in National Capital Region at PhilippinesListed.com classifieds - buy and sell new and used car parts. Local auto classifieds across National Capital Region. Synthetic rubber is a man-made rubber which is produced in manufacturing plants by synthesizing it from petroleum and other minerals. Synthetic rubber is basically a polymer or an artificial polymer.