... subjected to heat and pressures; and thermoplastic, which can be repeatedly softened and reshaped by heat and pressure. Both of these materials are fairly cheap and therefore will cut down on production costs. Also in vacuum forming plastic is wasted that was surrounding the case in the forming process this is then cut off to leave you with your case; this wastage is none existent in the injection moulding. The Plastics are not only very durable with their increased life-span but also easily recyclable. Most plastics can be reclaimed by regrinding up old products and using the pellets to make a new product which obviously means no waste. In fact, plastics generally exhibit superior resistance to breakage and denting and are usable over and over again before recycling. The other main reason is speed, the injection moulding machine works continuously producing exactly the same thing every time but the vacuum ...

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