The recycling process reduces the amount of carbon dioxide because less material is burned. Recycling is also energy friendly because some products require less energy to reproduce and it saves a lot of energy by not producing the product over and over again. Limitation of the recycling process: The recycling process is expensive and if the polymer contains other types of material, then it can contaminate the entire melted batch. The recycled product did not have good durability and may not last as long. Recycling sites are very unsanitary and spread disease and other harmful chemicals and waste. Low molecular weight reduction: By the process of hydrolysis and pyrolysis the polymers can be degraded to a lower molecular weight and by the filtration process they are separated from the non-polymers and finally the polymeric material is separated into its components by fractional distillation, therefore large part of the polymeric material is recovered and reused. Recycling Junk Cars Junk cars contain 12% to 13% polymeric material by weight, so the junk car must be recycled in order to recover