Plastics – The raw material

Raw materials for the manufacture of plastics are natural compounds, such as cellulose, coal, petroleum and natural gas. In a refinery, petroleum is separated into several components by means of distillation. Grouped into evaporisation ranges, gas, benzene, petroleum, gaseous oil, and as residue bitumen are obtained during distillation. All components consist of hydrocarbons which only differ in size and form of the molecules. The most important component for plastics production is crude benzene. In a heat cracking process this crude benzene is broken down into ethylene, propylene, butylene and other hydrocarbons and is then...

FAQ – 2 questions (Part 4)

Are all brands of PE fittings the same? Answer = No, not all fittings are manufactured the same. The quality systems used by the manufacturer, the manufacturing processes and product back up and technical support can have an impact on the successful use of fittings. Always use reputable and well supported brands. Remember the saying “You get what you pay for” Can you weld underwater? Answer= definitely not. All fusion joints must be dry and free from all contamination. Water in any fusion joint is a contaminant and will potentially result in a joint failure....